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
Veseljchak [2.6K]
3 years ago
8

SA nodal cells are unique in that they exhibit autorhythmicity, meaning they are capable of depolarizing and firing an action po

tential spontaneously without any external influence.
1. True
2. False
Biology
1 answer:
BigorU [14]3 years ago
8 0

Answer:

1) True

Explanation:

Cells of Sinoatrial (SA) node make up the auto rhythmic cells of heart as in normal physiological conditions , SA-node is responsible to set the pace of the rest of the heart (pacemaker) at a rate of 70 to 80 beats per minute.

The cells of SA node has the ability to self-excite thus able to generate action potential without external stimulation by nerve cells. Thus they initiate the cardiac cycle providing the conduction system.

Hence the statement , SA nodal cells are unique in that they exhibit autorhythmicity, meaning they are capable of depolarizing and firing an action potential spontaneously without any external influence, is true.

You might be interested in
Whats the answer ugh
Strike441 [17]

Answer:

Phalanges: long bones

Sternum: flat bone

Vertebrae: Irregular bone

6 0
2 years ago
In a species of Asclepias (milkweeds) there are two alleles of a gene involved in the synthesis of cardenolides. One allele resu
g100num [7]
Menenemmek ekekejekkwj wkekejkekw
6 0
3 years ago
How does a bacterial cell differ from a plant or animal cell
Taya2010 [7]
A bacteria cell differs from a plant or animal cell by being less complex in structure.
5 0
3 years ago
A 17-year-old high school senior presents to the clinic in acute respiratory distress. between shallow breaths he states he was
andrezito [222]
<span>Based on the mentioned symptoms, the disorder that best describes his condition is Spontaneous pneumothorax and surgery is needed in order to overcome it. The presence of air in the form of small packs between the lungs and chest is a formal way of describing this condition and this may lead to damage in the lungs.</span>
4 0
2 years ago
Based on the graph, determine how many total meters the falls eroded from 1900 until 1910
posledela

Answer: 9.3 meters

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which was first launched during the Space Race?
    11·1 answer
  • Dr. jekyll needed which of these ingredients to make another batch of his potion?
    7·1 answer
  • An acid has more what when compared to a base
    5·2 answers
  • In allport's trait theory, the most common traits are _______ traits.
    14·1 answer
  • Can someone help me please?
    10·1 answer
  • What are tributaries?
    8·1 answer
  • Forensic investigators find a widespread dispersal pattern of elongated bloodstains on a wall with a void at the point of origin
    5·1 answer
  • 20. Which of the following statements regarding human genetic disorders is accurate? A. Nondisjunction is responsible for causin
    12·1 answer
  • Most research in sexuality is _____ research. A. Survey research B. Experimental research C. Direct laboratory observations D. C
    7·1 answer
  • Please help me and please use your own word and do not copy and paste from google thank you
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!