Blood is carried away from the heart by
Group of answer choices

capillaries

arteries

veins

afferent vessels

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Question 21 pts
The left and right pulmonary veins carry blood to the
Group of answer choices

intestines

heart

lungs

brain

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Question 31 pts
Relaxation of the ventricles is called
Group of answer choices

depolarization

ventricular systole

ventricular diastole

hyperpolarization

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Question 41 pts
Cardiac muscle is similar to skeletal muscle in
Group of answer choices

the presence of striations

the presence of intercalcated discs

the presence of a single nucleus

None of the above.

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Question 51 pts
The muscular layer of blood vessels is the
Group of answer choices

tunica externa

tunica media

tunica interna

tunica intima