The contraction of skeletal muscles plays an important role in the movement of blood in the veins or your limbs.

The contraction of skeletal muscles plays an important role in the movement of blood in the veins or your limbs.

Select all correct answers. Why does the left ventricle have a thicker myocardial wall?

The effects initiated by the endocrine system _______ those of the nervous system.

Mrs. Smith needs a blood transfusion. She has O positive blood. What type(s) could she safely be given?

The heart MUST receive electrical stimulation from the nervous system in order to contract.

Which of the following hormones is INCORRECTLY with its target organ?

The ______________ are the last part of the electrical conducting system of the heart which stimulates the ventricular myocardium.

Which of these regulatory mechanisms would occur in response to a sudden increase in blood pressure?

Select all correct answers Which is(are) functions performed by the fibrous skeleton of the heart?