In cardiac muscle cells, approximately what percentage of cytoplasmic Ca2+ required for contraction enters the cardiac muscle cell from the extracellular fluid?

PhysiologyWeb

Home | FAQ | About | Contact | - Sign In

Physiology?

Figures & Illustrations

Test Questions

Daily Quiz

Calculators

Physiology Tutor

Glossary

Home > Test Questions > physiology_test_question_LONV1ZX1UZSVArBTmMOLzqDsjRTHzghE.html

Note:JavaScript is not enabled in your browser.

Physiology Test Question

In cardiac muscle cells, approximately what percentage of cytoplasmic Ca²⁺ required for contraction enters the cardiac muscle cell from the extracellular fluid?

	(A) 0%
	(B) 10%
	(C) 20%
	(D) 80%
	(E) 100%

Checking your answer...

Posted: Saturday, August 9, 2014
Last updated: Saturday, August 9, 2014