SA node > AV node > AV bundle (bundle of HIS) > Bundle branches > Purkinje fibers.
The sinoatrial (SA) node, located in the right atrium, produces an electric impulse by contraction. This impulse travels to the atrioventricular (AV) node, located at the partition of the atria. There is a tenth of a second delay in the impulse as the AV node contracts and sends the impulse through the bundle's branches to the ventricles. The bundle branches further divide into Purkinje fibers in the ventricle walls. When the impulse reaches the Purkinje fibers, they make the ventricles walls to contract.
The correct sequence of parts that carry cardiac impulses is SA node, AV node, bundle of HIS, bundle branches, purkinje fibers, ventricular muscle cells.
Sinoatrial node: Located in the right atrium, the SA node initiates the electrical impulses that regulate the heart's rhythm.
Atrioventricular node: Located near the center of the heart, specifically in the atrial septum, the AV node receives the electrical impulses from the SA node.
Bundle of His: After passing through the AV node, the electrical signal travels down the bundle of His, a pathway composed of specialized muscle fibers.
Bundle branches: The bundle of His divides into two main branches called the right bundle branch and the left bundle branch.
Purkinje fibers: The bundle branches further divide into smaller fibers known as Purkinje fibers.
Ventricular muscle cells: The Purkinje fibers stimulate the ventricular muscle cells, causing the ventricles to contract and pump blood out of the heart.
Thus, the electrical impulses originating from the SA node are efficiently transmitted to the atria and then to the ventricles, ensuring coordinated and effective contractions of the heart.
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Birds migrating, cats chasing prey, sea turtles moving toward the ocean immediately after birth, and joeys moving to the mother's pouch immediately after birth are all examples of ________.
The answer is 'instinct'. This is innate complex behavior exhibited by an organism that is not learned. Some common examples are dogs shaking themselves dry when wet, honeybee communication via intricate dances, animal courtship behavior during mating season and the building of nests by birds.
Innate behaviors are hardwired actions that occur naturally in animals, such as migration in birds and imprinting in geese, where they follow an object that resembles their mother after birth.
Explanation:Birds migrating, cats chasing prey, sea turtles moving toward the ocean immediately after birth, and joeys moving to the mother's pouch immediately after birth are all examples of innate behaviors. Innate behaviors are those that are hardwired into an animal's biology and are performed without prior experience or training. These behaviors occur naturally in all members of a species. Migration is one such behavior, where animals move from one place to another, often in response to environmental changes, such as the change of seasons. Birds, for example, migrate to find warmer areas with more food during the winter months.
Imprinting is another example of innate behavior, seen in species like geese, which refers to the critical period shortly after hatching when they form attachments and follow objects that resemble their mother.
While working in a forensic lab, you are given a bit of tissue to analyze. it has several layers. the upper surface consists of dead, flattened cells. as you move deeper into the tissue, the cells look healthier. the bottom layer of cells is actively dividing. under the dividing layer is an acellular protein goo. you identify the sample as ________ tissue?
In science, a scientific theory is defined as a/an __________.
A plant that has been raised in a sterile environment shows symptoms of a viral infection. how would you explain this?
Is it possible to have erosion without depositon explain
why might a animal conservation group report more on evidence of climate change
The process of making new dna molecules is semiconservative. this means that every new dna molecule is composed of
The process of making new DNA molecules is semiconservative. this means that every new DNA molecule is composed of one strand of old DNA bound to one strand of newly synthesized DNA.
What is DNA replication?DNA replication is the process through which the genome's DNA (deoxyribonucleic acid) is copied in cells. Before a cell undergoes division, it must first replicate its entire genomic material so that each of the resulting daughter cell ends up with its own complete set of genetic material.
DNA replication is semi-conservative in nature. This means that in every double helix molecule of DNA, the new generation of an organism consists of one complete old strand and one complete new strand of DNA wrapped around each other.
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Designing and constructing buildings that are energy efficient, economical, and made of recycled materials, is a trend called:
What did Charles Darwin discover about the theory of evolution?
Answer:
natural selection
Explanation:
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The term iteration means the same as the action of looping.
a. True
b. False
Infections of which sexually transmitted disease can be greatly reduced by a vaccination?
TEN MEDAL QUESTION
Post an example of a conflict that can arise during a workout, how you can recognize it, and how you can resolve it. For example, you could post that a side stitch, a sharp pain under the ribs, can cause conflict while running. The best way to relieve it is to stretch the cramping muscle. Extending one's arms overhead and taking deep breaths can help relax the muscle.,
Which two groups are the most similar in physical characteristics? Eukarya and Eubacteria Archaea and Eubacteria Archaea and viruses Archaea and Eukarya
Archaea and Eubacteria
A client and her partner are working together to achieve an unmedicated birth. the client's cervix is now dilated to 7 cm, and the presenting part is low in the midpelvis. what should the nurse instruct the client to do that will alleviate discomfort during contractions
Result of this action potential releases what ion from the terminal cisternae
Explain how ozone in the stratosphere is formed.
Sunlight's UV rays (sunlight) and the oxygen molecules that make up 21% of the atmosphere interact chemically to create stratospheric ozone in a natural process.
What results in formation of stratosphere, earth atmosphere?The very significant ozone layer is found in the stratosphere. The ozone layer aids in shielding us from the sun's ultraviolet (UV) rays.
In actuality, the ozone layer filters out the majority of the UV rays the sun emits at us. Without this layer of defense, there would be no such thing as life as we know it.
Oxides of nitrogen and volatile organic compounds, usually mentioned to as hydrocarbons, undergo chemical substance interactions that lead to ozone.
Both close to the earth and high in the atmosphere, this reaction is possible.
Therefore, The stratosphere contains the famed ozone layer.
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Since dna has a negative charge in which direction will it go in the gel if there are bubbles what does this mean
Using the punnett square.
What is the probability that the hamsters’ offspring will have straight fur?
A. 25%
B. 50%
C. 75%
D. 100%
DNA and RNA are both
Answer
made up of nucleotides and carry molecules from one end of a cell to another
molecules that contain genetic information and are made up of nucleotides
monomers of protein molecules that provide structure to a cell’s nuclear membrane
protein molecules that carry the unique genetic information of an organism,
In any dihybrid cross where both parents are heterozygous for both traits, what is the phenotypic ratio of the offspring? A)1:1:1:1
B)6:3:2:1
C)9:3:3:1
D)12:4:3:1
In any dihybrid cross ration is 9:3:3:1.
What is the phenotypic ratio of a dihybrid cross if both parents are heterozygous for both traits?
The phenotype ratio predicted for dihybrid cross is 9 : 3 : 3 : 1. If parents are heterozygous, and one allele for each trait exhibits complete dominance.
What is phenotypic ratio of dihybrid cross?
In Mendel's dihybrid cross the phenotypic ratio was 9 : 3 : 3 : 1.
Hence , C is correct option
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Plants play a major role in the carbon cycle. Plants use carbon dioxide for
Answer: the process of photosynthesis
Explanation:
List and explain the factors that influence blood pressure, and describe how blood pressure is regulated.
Where in our environment does our body obtain the oxygen it needs? What two systems are responsible for obtaining the oxygen and delivering it to the cells?
What system provides the nutrients that the cells will convert to energy?
During the process of making energy, our cells produce waste products. What systems are used to expel CO2?
What are the systems that are used to eliminate solid and liquid wastes?
Describe the relationship between the bones and muscles for movement, and the other systems that are necessary for the bones and muscles to function.
What systems are responsible for meiosis and what are the results?
Answer:
We get oxygen from the air i.e. atmosphere. Green plants release oxygen in the atmosphere as a byproduct of photosynthesis. Respiratory system is responsible for obtaining oxygen from the environment. Circulatory system on other hand helps in delivering this oxygen to different cells of the body with the help of blood.
We get nutrients from the food that we eat. Digestive system breaks down all the complex compounds (such as polysaccharides, polypeptides, fats etc) into simpler elements which are easy to absorb.
[tex]CO_{2}[/tex] produced as a waste product by the cells is carried by the blood to alveoli in the lungs where it gets diffused out and come out of the body as a part of exhale air. Hence, circulatory system helps in he transportation of [tex]CO_{2}[/tex] from cells to the lungs and respiratory system helps in expelling it out from the lungs to the outside environment.
Solid wastes are mainly excreted out of the body from anus which is a part of digestive system. On the other hand, liquid waste (urine) is excreted out of the body with the help of urethra which is the part of excretory system. In addition, excess salts and water can also excrete out of the body through skin.
Muscles and bones together help us in our locomotion. Nervous system is important for proper functioning of bones and muscles.
Meiosis is the type of cell division used to produce haploid cells or gametes from a diploid parent cell. Hence, it is used in reproduction system to produce sperm in males and eggs in females.
Consider the consequences of a mutation in the dna template sequence 5'atg3' to 5'ttg3': what is (a) the resulting change in the mrna codon and (b) the effect on the corresponding amino acid? see section 16.4 (page 344) .
In order to get around the lack of ability of prokaryotes to remove introns from precursor rna, it may be necessary to
An inversion occurs along part of a chromosome. How does the inversion most likely affect the region in which it occurs?
A. Recessive alleles in the region become dominant alleles.
B. The coding sequence in the region disappears entirely from the cell.
C. Multiple frame-shift errors in the region are triggered after translation.
D. The information in the region is read differently during transcription.
Answer: The correct answer is-
D. The information in the region is read differently during transcription.
Inversion is a type of mutation ( that is permanent change in the genetic material of living organism) that occurs after break in a chromosome, which is followed by the rearrangement of the broken segment.
In other words, when a segment of chromosome is broken and reversed/rearranged within itself, it is called inversion.
It leads to change in the DNA sequence, due to which information in the region ( that is genetic information present in the form of nucleotide sequences) is read differently during transcription ( conversion of DNA to mRNA).
Thus, option D) is the right answer.
What information is not required on the nutritional portion of a food label?
i had this question and it was price
hope this helps
Answer:
Price
Explanation:
Out of all the options "Sizes" is the only option that is not included on the label.
The nutrition facts label is nutritional information that is written on the packaged food that shows the percentage of the nutrients present in the packaged food.
Different countries in the world has their nutrition guidelines for all packaged food that are been sold in daily basis
nutrition information that's well detailed helps the consumers to have a good eating habit and this information can only be produced by the producers.
Some information on the label includes;
1.)INGREDIENTS; the ingredients are usually arranged in certain order I.e from the major ingredients(highest quantity) to minor ingredients (lowest quantity) such as sucrose,additives and others. and any FDA- certified must be included.
2.)DAILY VALUE; It is used on food label to so that the consumers can plan a healthy diet, it provide the percentage of the nutrients that is contained in a serving of food.
3.)PORTION SIZE; is the amount of a food consume in single occasion.
Which groups of viruses require an rna-dependent rna polymerase?
"abnormal enlargement of air sacs in the lungs can lead to which condition"
How are fructose and glucose different?
One is a monosaccharide and the other is a disaccharide.
One has 6 carbon atoms and the other has 5 carbon atoms.
They have a double-bonded oxygen in different locations.
They each have a unique molecular formula.
Answer:
Option). They have a double-bonded oxygen in different locations.
Explanation:
Both glucose and fructose are monosaccharides, having molecular formula C₆H₁₂O₆.
Glucose and fructose are different sugars, aldose and ketose respectively, due to the different position of carbonyl group (double bonded oxygen with carbon or C = O group).
In glucose, the oxygen atom makes double bonds with last carbon atom of the chain, which means carbonyl group shows an aldehyde group. Thus, it is an aldose sugar.
In fructose, the oxygen makes double bonds with an internal carbon atom and represents a ketone group. Thus, it is a ketose sugar.
Thus, the correct answer is third option.
Final answer:
Fructose and glucose are both monosaccharides and isomers with the same molecular formula, C6H12O6. They differ as glucose is an aldose and fructose is a ketose, and they have different ring structures; six-membered for glucose and five-membered for fructose.
Explanation:
Fructose and glucose are both monosaccharides with the same molecular formula, C6H12O6, but they differ in their structural arrangement, making them isomers. One of the primary differences is that glucose is an aldose, with the aldehyde group at the end of the molecule, whereas fructose is a ketose with the ketone group in the middle of the molecule. While glucose forms a six-membered ring, fructose forms a five-membered ring structure. These differences in structure lead to variations in their chemical properties and how they are metabolized in the body.