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
lozanna [386]
3 years ago
15

In cardiac muscle, calcium ions do not bind to troponin molecules. calcium ions are not released from the sarcoplasmic reticulum

. calcium ions play an important role in repolarizing the membrane after the depolarization phase. about 20 percent of the calcium ion required for contraction comes from outside the cell. calcium ions play no role in the process of contraction.
Health
1 answer:
strojnjashka [21]3 years ago
3 0

Answer:

Option). about 20 percent of the calcium ion required for contraction comes from outside the cell.

Explanation:

Calcium ions play an important role in cardiac muscle physiology. Calcium ions influx is responsible for plateau phase after depolarization. Calcium ions also play role in muscle contraction with the help of troponin (regulatory protein).

For contraction, about 20 percent of calcium ions are supplied from outside of the cell, while rest of the calcium ions are released from SR (sarcoplasmic reticulum).

Thus, the correct answer is 'forth option.'

You might be interested in
Females of a species of parasitic wasps locate their prey, a leaf-eating caterpillar, by hunting for it visually. One year, one
I am Lyosha [343]

Answer:

The DNA of the egg cell.

Explanation:

Mutation may be defined as the inheritable, sudden change in the DNA sequence of the organism that can produce a specific genotype and phenotype in an individual.

Germ line mutation may pass from parents to their offspring. The female wasp after one year locates the prey by smell. This mutation must have occurred in the DNA of the egg cells. This mutation has been pass down to the female offspring and appeared in the population.

4 0
3 years ago
In the State of Florida your first conviction for DUI when there is a minor in the vehicle with you results in a fine of not les
Andrej [43]

DUI when there is a minor in the vehicle with you results in a fine of not less than $1,000, or more than $2000.

4 0
3 years ago
Someone help ASAP !!!
garri49 [273]

The Patients bill of Rights was first adopted by the American hospital association in 1973 and revised in October 1992 patient rights were developed with the expectation that hospitals and healthcare institutions would support these rights in the interest of delivering effective patient care.

8 0
3 years ago
I share because i care :) ( Free 30 points!)
earnstyle [38]

thanks for the points, merry christmas :D

3 0
3 years ago
Read 2 more answers
Cut at least 3 reasons why teens consume alcoholic beverages
zlopas [31]
Peer pressure
Lack of confidence
Social media
5 0
3 years ago
Other questions:
  • Physical exercise helps to prevent heart disease. <br> Select one:<br> a. True<br> b. False
    14·2 answers
  • Yuri has a special dietary restriction. Which abbreviation would most likely be in her chart?
    11·2 answers
  • Which of the following is not one of the specific criteria for renewing a CDA credential?
    5·1 answer
  • Differences between ferlity and fecundity in atleast 5 points
    13·1 answer
  • A health care professional should include which of the following instructions when talking instructions when talking with a atie
    12·1 answer
  • A class of brain chemicals that may play a particularly important role in the development of anorexia in both rats and humans is
    5·1 answer
  • MRI technologists take precautions by?
    7·1 answer
  • Which of the following statements BEST distinguishes legal drugs from illegal drugs? A. Illegal drugs have higher costs. B. Only
    15·2 answers
  • A man is overweight and wants to improve his cardiovascular endurance.
    5·1 answer
  • Tobias is reading an article about unsaturated fats. What is one fact he is MOST likely to read in this article? A. Unsaturated
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!