Insertion of a narrow flexible tube, or catheter, through a blood vessel into the heart to withdraw blood samples, measure pressures, and inject contrast medium for imaging purposes is ________. (2 words)

Answers

Answer 1
Insertion of a narrow flexible tube, or catheter, through a blood vessel into the heart to withdraw blood samples, measure pressures, and inject contrast medium for imaging purposes is called Cardiac catheterization. Cardiac catheterization is a procedure to examine how well the heart is working. A thin, hollow tube called a catheter is inserted into a large blood vessel that leads to the heart. It is normally performed if one has a disease of the heart muscles, valves, or coronary arteries. During this procedure, the pressure and blood flow in the heart can be measure and therefore a problem or a disease can be diagnosed; or the efficiency at which the heart is working.

Related Questions

The radiosonde can be used to measure upper air temperature. Please select the best answer from the choices provided T F

Answers

Answer:

It's true

Explanation:

Radiosondes are used to measure temperature, pressure and humidity at heights above 30 km. They can also be used to determine the wind at heights. There are other radiosondes used to measure the sun's radiation, ozone distribution, air conductivity, etc. They are mainly used for research. Its units are hectopascal, degrees Celsius, etc.

A cellular process called ____________ is responsible for programmed cell death.

Answers

Apoptosis. This is a process of programmed cell death that occurs in various organisms. There biochemical processes that lead to morphological cell changes of the cell. This changes are blebbing, cell shrinkage, nuclear fragmentation. This must be differentiated from necrosis. which is a form of cell death due to acute cellular injury. Apoptosis is a regulated process that serves as an advantage of the organism life cycle. Usually this can be initiated by intrinsic pathway when the cell kill itself when there are cell stressors and extrinsic pathway where death occurs due to signals from other cells. 

In which structure would a zygote occur in within the female reproductive system? A. Uterus B. Uterine wall C. Ovary D. Fallopian tube

Answers

The answer to this is D. The reason the answer is Fallopian tube is because zygote is the female egg fertilized by male sperm. 

Hope this helped :)

During the cell cycle, specifically G1 interphase, a cell must reach a sufficient size and produce enough ATP in order to A) undergo mitosis. B) undergo cytokinesis. C) produce 2 daughter cells. Eliminate D) replicate its chromosomes.

Answers

Answer: Replicate its chromosomes

Explanation:

The cell in the body goes through the cell cycle regulation. There are various stages of cell cycle regulation.

Out of those stages one is G1 phase at the end of which the cell is prepared for the synthesis phase.

The cell gets supplied with proteins, increases in the number of organelles and grows in size.

This occurs so that in the next stage the cells can replicate its chromosomes and new cells are formed.

list three things that an astronomer can learn about a star by studying its spectrum.

Answers

astronomers can learn it's temperature, state, and composition. 

hope this answers your question....!

A star's spectrum lines help to detect the various important studies related to the spectral lines of the stars. The temperature, composition and density of the star will help the astronomer.

What are the gases found in stars ?  

The major gases that are found in stars are hydrogen and helium which undergoes various reactions in order to produce energy and these energetic reactions are helpful in  stars twinkling.

The spectral lines is also helpful in diagnosing the magnetic field of the star where the temperature of the star in which it is present will also be shown by the spectral lines and the density of the star that is the volume present in the star is also shown by the spectral lines.

Therefore the major of 3 things that will be diagnosed with the help of the spectral lines are magnetic field, temperature and density of the star atmosphere.

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How can so many different substances and molecules be created from just over 100 different elements?

Answers

because even though there are only a hundred different elements, there can be over a thousand different combinations of these elements. these different combinations result in different substances and molecules.

Which of the following statements is true concerning the National Weather Service's ability to predict aerial flooding?

A. They can give good advance warning of how high flood waters will rise, but NOT when and where floods will occur.

B. They CANNOT give good advance warning of when and where floods will occur, or how high flood waters will rise.

C. They can give good advance warning of when and where floods will occur and how high flood waters will rise.

D. They can give good advance warning of when and where floods will occur, but NOT how high flood waters will rise.

Answers

the answer would be c

Nerve impulses leading to the brain carry information about cool temperatures on the skin. the nerve fibers sending these signals will most likely belong to which division of the nervous system? sensory (afferent) division somatic nervous system sympathetic division parasympathetic division

Answers

The answer sensory (afferent) division. The nerves are sensory because they perceive sensory stimuli, in this case, temperatures. Additionally, afferent nerves carry impulses to the Central Nervous System while efferent nerves carry impulse to muscles and glands in response to information brought in by afferent nerves.






Water held within plants returns to the atmosphere as a vapor through a process called _______________.

Answers

evaporation I think lol I forgot this

The history of life on Earth is recorded in _____.


rock fossils

animal behavior

a gene pool

Lamarck's notes

Answers

rock fossils history of life

Answer:

Option A

Explanation:

The rock fossils depict the history of life because they consist of several deposits of old age fossil in different layers of rock strata. The layer of rock strata which lies at the bottom of any rock deposits is the oldest layer. By examining this oldest layer one can determine the prevailing atmospheric condition at the time of its formation. Also, examining the remains of fossil can help us to understand the forms of life existing during that time.  

In this way all the layer of rock strata can be examined one by one from bottom (oldest) to top (youngest). This shall also allow us to understand the pattern of evolution of biological species with time.  

Hence, option A is correct

The palatine tonsils are located between which two structures

Answers

At the back of the throat is where the palatine tonsils are located. One of the tonsils is on the right side of the throat while the other tonsil is on the left side of the throat. The major roles of the these tonsils is to protect the body against gastrointestinal and respiratory infections.

If the sequence of nucleotide on mRNA template is AUCGUA then sequence of newly synthesized DNA strand would be?

Answers

The answer would be : UAGCAU.

U gets along with A and C gets along with U.

Hope this helps !

Photon

Answer:

The correct answer will be- T A G C A T.

Explanation:

The mRNA is the messenger molecule formed by the process of transcription from the anti-sense DNA strand as a template.

The mRNA usually contains code for the synthesis of proteins but can also synthesize the DNA by the process of reverse transcription. The complementary nucleotide will bind according to the Chargaff rule which states that A will bind T or U and G will bind C.

So, if mRNA strand is- A U C G U A

   DNA strand will be- T A G C A T.

What feature makes water a polar molecule? A. A water molecule is negatively charged. B.The middle of the water molecule contains opposing charges. C.The ends of the water molecule have opposite electrical charges. D.A water molecule is positively charged.

Answers

The ends of the water molecule have opposite electrical charges.

100% correct

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The ends of the water molecule have opposite electrical charges...

What would you expect to see on the eeg record of a person who is engaged in an episode of sleepwalking?

Answers

Somebody expects to see evidence of deep sleep which is in stage 4 on the EEG record of a person who is engaged in an episode of sleepwalking.

Sleepwalking is also called somnambulism.

It is termed as a phenomenon which is combined with sleep and wakefulness. It is sleep disorder which is classified to parasomnia family.
 Sleepwalkers they have no memory of the incident. It occurs during slow-wave sleep of eye movement sleep which is non-rapid.

Answer:

The correct answer is evidence of deep sleep (stage 4).

Explanation:

Sleepwalking or somnambulism is the condition found most commonly in the children between the ages 6 and 12. Though it is usually a harmless condition, however, spontaneous occurrences should be helped out with the help of a physician.  

In the condition, the person goes from deep sleep to light drowsiness in a general sleep pattern. The individual generally encounters with few rounds of REM and non-REM sleep, or brisk movement of the eye.  

Latoria is horseback riding when she falls and hits her head. after the accident, she has difficulty performing finely coordinated movements. latoria has most likely damaged her ____.
a. medulla oblongata
b. reticular formation
c. cerebellum
d. locus coeruleus

Answers

Latoria is horseback riding when she falls and hits her head. after the accident, she has difficulty performing finely coordinated movements. Latoria has most likely damaged her cerebellum.

Final answer:

Latoria has most likely damaged her cerebellum, which is responsible for balance, coordination, movement, and motor skills. The correct answer is option C, "cerebellum."

Explanation:

Latoria is horseback riding when she falls and hits her head, and afterward has difficulty performing finely coordinated movements. Given these symptoms, Latoria has most likely damaged her cerebellum. The cerebellum is the part of the brain responsible for controlling balance, coordination, movement, and motor skills. It receives messages from muscles, tendons, joints, and structures in our ear to manage these functions. The cerebellum can make necessary changes to motor commands, as seen when a person adapts their walking movement in water. When the cerebellum does not work properly due to damage or the effects of alcohol, coordination and balance are significantly impaired.

Blood donations to the red cross are considered​ __________ products.

Answers

transfusable components
Final answer:

Blood donations to the Red Cross are considered public goods, which are products or services provided for the entire society's benefit. Such public goods are usually offered by governments or non-profit organizations.

Explanation:

Blood donations to the Red Cross are considered public goods. The term refers to products or services that are provided for the benefit of all members of a society. Public goods are usually provided by the government or non-profit organizations such as the Red Cross. When an individual donates blood, that blood is available for anyone who needs it, regardless of whether they have also donated blood. Hence it's a public good - a valuable product that serves the common interest.

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Process by which radiation from a planets atmosphere warms the planets surface to a temperature above what is would be without its atmosphere

Answers

Process by which radiation from a planets atmosphere warms the planets surface to a temperature is greenhouse effect.

What is greenhouse effect?

The greenhouse effect is a process that occurs when energy from a planet's host star goes through the planet's atmosphere and heats the planet's surface.

The greenhouse effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat. This process makes Earth much warmer than it would be without an atmosphere.

The greenhouse effect is the way in which heat is trapped close to Earth's surface by “greenhouse gases.” These heat-trapping gases can be thought of as a blanket wrapped around Earth, keeping the planet toastier than it would be without them.

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The greenhouse effect is the process where a planet's atmosphere warps surface temperature by trapping infrared radiation through greenhouse gases, leading to a warmer planet than it would be without such an atmosphere.

The process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere is known as the greenhouse effect. This warming occurs because certain gases in the atmosphere, called greenhouse gases, are capable of trapping infrared radiation and reradiating some of it back to the planet's surface, thus raising the temperature. Earth's natural greenhouse effect, which is primarily due to water vapor and carbon dioxide, increases the average surface temperature significantly. Planets like Mars, with a very thin atmosphere, experience less greenhouse warming, while Venus, with its dense carbon dioxide atmosphere, experiences extreme greenhouse warming. Understanding the balance between incoming solar energy and the heat-trapping properties of greenhouse gases is crucial for determining the surface temperature of a planet. The Earth retains enough of this reradiated heat to prevent the oceans from freezing over, while Mars, which may have had a thicker atmosphere in the past, remains colder in its current state. The enhanced greenhouse effect due to human activities, such as the burning of fossil fuels, has become a significant concern because it is linked to global warming and climate change.

How is the median defined if the number of observations is even?
a. the average of the two middle observations
b. the difference between the two middle observations
c. the most frequent observation
d. the difference between the highest and smallest observation?

Answers

The answer is A.
In getting the median if there's an even number of observations, first, you need to arrange the data from least to greatest (or greatest to least will do).
Then, add the two middle observations, then divide the answer by 2, to get the average of the two middle observations. The answer you will get from dividing it by two is the median.
If the number of observations is even, then the median is defined as the average of the two middle observations. Median is a measure of central tendency, it depicts the middle value in a given set of numbers. To find the median, the data should be arranged in order from least to greatest. If there is an even number of items in the data set, then the median is found by taking the mean or average of the middlemost numbers. If there is an odd number of results or items, the median is the middle number.

HELP ASAP!!!
Here is Dan's address:

42 Oaksville Street, Apartment C
San Jose, California
USA

Imagine each of the five parts of Dan's address represents Earth, the Milky Way, the moon, the solar system, or the universe, based on their sizes. Which of the following parts of Dan's address would represent the universe?

A. California
B. 42 Oaksville Street
C. San Jose
D. USA

Answers

D. USA

The universe is the largest out of the Earth, moon, Milky Way, and solar system, and the USA is the largest part of Dan's address. 
The correct answer is D, USA

2. True or false? The Atlantic Ocean is the biggest ocean on Earth.

Answers

false. The Atlantic Ocean is the second largest of the world's oceans with a total area of about 106,460,000 square kilometers. It covers approximately 20 percent of the Earth's surface and about 29 percent of its water surface area.

False!

The Pacific Ocean is the biggest ocean on Earth. The Pacific Ocean is as big as all the other oceans put together.

Identify the two minerals shown that exhibit fracture as a dominant form of breakage

Answers

Two minerals that exhibit fracture as a dominate form of breakage are quartz and olivine. 

Among the properties used to identify minerals, we can mention the breaking tendency: cleavage or fracture.  The two minerals shown that exhibit fracture as a dominant form of breakage are quartz and olivine.

Many properties of minerals are used to identify them, such as color, density, hardness, among others. In this case, we are talking about their breaking tendency.

How do minerals break?

Minerals can cleave or fracture, which depends on how the sides separate and the formed angles.

A type of mineral breaks always in the same, and this is why the breaking tendency is useful to identify them.  

Cleavage

The mineral breaks in flat smooth planes.

Cleavage direction and smoothness of surfaces are significant when identifying.

Fracture

The mineral break in irregular planes.

In these minerals, there is no particular breaking direction.

Image analysis

According to this information, we can analyze the images and look for the answer.

Let us take, for instance, the potassium feldspat option. It shows flat and regular planes. So this is not a fracture, but a cleavage.

On the other side, quartz and olivine, do not seem to show any regular breaking side. The shape of these minerals is not well-defined and does not show any breaking direction.

The two minerals shown that exhibit fracture as a dominant form of breakage are quartz and olivine.

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The ________ division of the nervous system carries motor commands to muscles and glands.

Answers

The answer is efferent division. The nervous system acts as an input-output system. The afferent nervous system conveys signals to the brain following a stimulus. After processing of the information, the brain sends out a signal in response. This response is carried by the efferent nerve to the requisite organ involved in the response.  






Final answer:

The motor division of the nervous system, part of the peripheral nervous system, sends motor commands to muscles and glands, divided into the somatic and autonomic nervous systems for controlling voluntary and involuntary actions.

Explanation:

The motor division of the nervous system carries motor commands to muscles and glands. This part of the nervous system is crucial for stimulating muscles to contract and glands to secrete hormones. It is part of the peripheral nervous system (PNS) and is further divided into two main systems: the somatic nervous system and the autonomic nervous system.

The somatic nervous system controls voluntary movements by acting on skeletal muscles, whereas the autonomic nervous system regulates involuntary activities, influencing glands, smooth muscles, and cardiac muscles. It includes further subdivisions like the sympathetic and parasympathetic systems, which are responsible for the body's fight-or-flight response and rest-and-digest activities, respectively.

Where does a zygote implant after fertilization? Fallopian tube Vagina Uterus Ovary

Answers

Uterine Lining. so Uterus. If it implanted in the Fallopian tubes 'it would result in a ectopic pregnancy which would result in miscarriage.

Answer: Uterus.

Explanation:

The male and female gamete fuse together to produce gamete and the produced gamete is implanted in the uterus.

The growing fetus gets all the nutrition here for the growth of the fetus. The zygote gets attached to the uterine walls and stays there for development.

The growing fetus is delivered after nine moths and they stay in the womb for approximately 9 months.

A normal human cell containing 22 autosomes and a y chromosome is a(n):

Answers

Y is a sex chromosome.

What is the largest time period in the history of Earth?

Answers

The answer will be : Phanerozoic Eon because the geological time scale Eon is the longest period of time.

Alcohol is eliminated from the body chemically unchanged in

Answers

Alcohol metabolism in general, occurs in two phases. It is changed when it goes through both stages. However, through the initial stage, it does not metabolize yet and a small fraction of it does not go through metabolism at all. Instead it is eliminated from the body chemically unchanged in breath, perspiration and urine. 
Final answer:

Alcohol is eliminated from the body through a process called alcohol metabolism, during which the liver breaks it down into carbon dioxide and water. This helps remove alcohol from the bloodstream. The rate at which alcohol is eliminated can vary from person to person.

Explanation:

Alcohol is eliminated from the body chemically unchanged through a process called alcohol metabolism. When alcohol is consumed, the liver breaks it down through a series of steps, involving various liver enzymes, to convert it into carbon dioxide and water. This process helps remove alcohol from the bloodstream. The liver metabolizes the majority of the ethanol circulating in the blood, and the rate at which alcohol is removed can vary from person to person.

Alcohol metabolism involves two main processes: oxidation and elimination. In the liver, alcohol dehydrogenase converts ethanol to acetaldehyde, which is further metabolized to acetate by aldehyde dehydrogenase. Acetate is then converted into carbon dioxide and water. This process, occurring primarily in the liver, helps eliminate alcohol from the body.

Injuries and deaths from motorcycle collisions are primarily from

Answers

the size of the bike makes it a lot harder to see and due to there being little to no protection

Motorcycle crash injuries and fatalities are mostly caused by the riders' lack of protection and susceptibility when compared to the occupants of enclosed vehicles.

Thus, riders on motorcycles have little physical protection, making them vulnerable to direct impact and even ejection following a crash. The possibility of suffering serious injuries rises in the absence of safety equipment like seat belts, airbags, and a protective vehicle frame.

The visibility of motorbikes on the road also makes accidents with other cars more likely. Motorcycles' rapid speeds can play a role in collisions brought on by driving too fast, being careless, or losing control. Motorcycle incidents are more likely to cause significant injuries and fatalities.

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The process in which two or more species become more adapted over time

Answers

I think the answer is evolution..

The best way to reduce our unnecessary waste of energy is to improve _____.

Answers

our habits.

Simple tasks such as turning off the lights in a room when no one's in it can save energy tremendously.

Hope this helps!

What is the ozone layer? Where is it?what purpose does it have ?

Answers

ozone gas is.made up of oxygen molecules that has three atoms (O3) it exists in polluted air. Ozone layer is located in stratosphere(one of the layers of earth's atmosphere) it is like a protective layer and prevents dangerous ultraviolet(UV)from reaching earth's surface

Answer:

The ozone layers is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. he ozone layer is mainly found in the lower portion of the stratosphere from approximately 20 to 30 kilometres (12 to 19 mi) above Earth. It's purpose is to protect us from the sun's ultraviolet rays which I said in the first sentence.

Hope this helps!

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