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
mash [69]
3 years ago
5

Pacemaker cells in the heart possess intrinsic rhythm. a. True b. False

Medicine
1 answer:
Sveta_85 [38]3 years ago
6 0

Answer:

True

Explanation:

Pacemaker cells, unlike other neurons in the body, can depolarized themselves (and therefore can fire action potentials) without the need of an external innervation of the autonomic nervous system.  

Each class of pacemaker cells has its own intrinsic rate.

For example, sinoatrial node rate is 60-100 bpm (the normal heart frequency).  

The atrioventricular node is also part of the electrical conduction system of the heart. When the sinoatrial node fails, atrioventricular node takes the lead (40-60 bpm).

You might be interested in
An intake level estimated to meet the nutrient needs of 98% of healthy people A. Based on less conclusive scientific information
ICE Princess25 [194]

Answer:

D.

Explanation:

this answer is the right one

3 0
2 years ago
Which layer of the heart wall consists mostly of cardiac muscle cells?
Fantom [35]

Answer:

the answer to the question is c

3 0
3 years ago
The human body is an intricate and complex web of
asambeis [7]

Answer:

Nerves, organs, organ systems, muscles, blood vessels, bones, tissues- there's a lot of ways to answer this.

8 0
3 years ago
Read 2 more answers
Greater decreases in overall brain volume in later adulthood is associated with ________________ in cognitive abilities and cogn
TEA [102]

Greater decreases in overall brain volume in later adulthood is associated with an unclear exact relationship in cognitive abilities and cognitive functioning.

<h3>How brain changes in late adulthood?</h3>

The brain's size reaches roughly 90% of its adult volume by the time a child is six years old. The brain begins to contract in our 30s and 40s, and by the time we reach our 60s, the brain is contracting even more rapidly. The brain begins to change in appearance, just like wrinkles and gray hair do later in life.

The brain actually shrinks and its overall mass decreases as adults. There are decreases in some neurotransmitters as well, including dopamine and acetylcholine. Loss of memory for recent events, familiar names, and familiar duties is the first sign of Alzheimer's disease. In old age, general knowledge memory does not deteriorate. There has been a deterioration in episodic and event memory.

To know more about brain visit :

brainly.com/question/11950231

#SPJ4

8 0
1 year ago
Medical coders are required to have at least _____ coding certification.
elena55 [62]
At least 2 years of medical coding experience
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which type of gland loses a portion of the cytoplasm when the product is released? Is this cell destroyed or can it be repaired?
    6·1 answer
  • Which organization is responsible for the continuation of defining, explaining, classifying, and researching summary statements
    14·1 answer
  • Traditional recipes for bleach concentrations are suited to a _____ percent concentration 1.5 3.75 5.25 10
    14·1 answer
  • Which of these is one of the main priorities of the National Prevention Strategy?
    11·1 answer
  • Maximum amount of oxygen that an individual can utilize during intense or maximal exercise.Vocabulary
    9·1 answer
  • For cool people to have fun!
    15·2 answers
  • ndividuals with a psychological disorder are extremely different from individuals without a psychological disorder. Please selec
    10·1 answer
  • Health condition that requires careful monitoring of blood sugar levels.
    7·1 answer
  • During your assessment of a woman in labor, you see the baby's arm protruding from the vagina. The mother tells you that she nee
    10·1 answer
  • A two-year-old boy was brought to the emergency department because of vomiting. About 30 minutes prior, he was found by his pare
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!