1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nastasia [14]
2 years ago
6

Why SA node called pacemaker of heart

Biology
2 answers:
zhannawk [14.2K]2 years ago
8 0
<h2>ANSWER:</h2>

It controls the heart rate by producing electrical impulses

<h2>EXPLANATION:</h2>

It controls the heart rate by producing electrical impulses and later transmitting electrical signals through the heart muscle, creating the heart to contract and pump blood everywhere into the body. The heartbeat originates from the S.A. node and expands to the walls of auricles which contract.

stich3 [128]2 years ago
3 0
SA Node<span> which is also known as the sinus node, is the natural pacemaker of the heart. It controls the heart rate by generating electrical impulses and then sending electrical signals through the heart muscle, causing the heart to contract and pump blood throughout the body. </span>

The SA Node is located in the outer layer of the right atrium of the heart, near the superior vena cava. It is made up of a group of cells (myocytes) positioned on the wall of the right atrium, at the center of the heart and near the entrance of the superior vena cava. These cells contract at a rate of about 70-80 times per minute, which make up the natural heart beat.



You might be interested in
Discuss how the environmental pressures are different in the local environment compared with its native environment.
lions [1.4K]

hello man sadly this was the last day that he had gone with his parents for the first period of time so I told them that they

4 0
2 years ago
Which two of the following best describes what is happening in the picture?
MrRissso [65]

Answer:

A and D I think

Explanation:

It's not erosion, so that is out of the answer choices. And I doubt it is crystallization, so that is why I think it is A and D. (correct me if I am wrong.)

8 0
2 years ago
you are digging a hole in you backyard when you see a a piece of fossilized bone in the dirt. How could you prove the age of the
Rudik [331]
You could carbon date the fossil
6 0
3 years ago
All of the following statements are true about heritability EXCEPT: Group of answer choices it is the genetic variance for a tra
Lerok [7]

Answer:

I am a in

Explanation:

I apologize I don't know the answer

3 0
2 years ago
Why is it commonly believed that carbon dioxide is responsible for global warming? Select 2 options.
NikAS [45]

Answer:

it is a greenhouse gas witch traps heat

and it dissolves in the ocean causing fish to die and decompose creating more greenhouse gas

Explanation:

5 0
2 years ago
Other questions:
  • How have useful traits been accumulated in plants and animals over the centuries?
    13·1 answer
  • The name for a cell or organ that is specialized to detect a stimulus
    8·2 answers
  • Where are most modern divergent plate boundaries found? where are most modern divergent plate boundaries found? within continent
    11·1 answer
  • Explain why components that are naturally found in air can be considered air pollution
    8·2 answers
  • What is a branch of biology that groups and names organisms.
    8·1 answer
  • What happens when you mix 2 different solutions? Give me any example
    15·1 answer
  • 3rd time putting this up please help me dont steal points pkease this is due in 10 mins
    9·1 answer
  • In a monohybrid cross, if the gene for tall (T) plants was incompletely dominant over the gene for short (t) plants, what would
    6·1 answer
  • "Cellular respiration takes the energy stored in glucose and transfers it to ATP." Other word(s) for transfers:
    15·1 answer
  • 5. In a neutral atom, the number of electrons always equals the number of
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!