Which of the following is NOT occurring during ventricular diastole?

A. Blood flow through the semilunar valves
B. Atrial contraction
C. Ventricular relaxation
D. Blood flow through the AV valves


Answer: A. Blood flow through the semilunar valves

Anatomy & Physiology

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Describe how contractile cells are able to contract rapidly but are not likely to experience tetanus. Include the following terms in your answer : refractory period, calcium channels, contraction period, relaxation period, depolarization, and repolarization

What will be an ideal response?

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The dermis ________

A) is where melanocytes are found B) is avascular C) lacks sensory corpuscles and glands D) has two layers

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The sarcoplasmic reticulum stores ____ when a muscle is relaxed and releases it for binding to ____ during contraction

a. calcium; troponin b. calcium; tropomyosin c. sodium; tropomyosin d. potassium; tropomyosin e. sodium; troponin

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The duct from the seminal vesicle joins the ductus deferens to form the

A. prostatic urethra. B. epididymis. C. sperm cord. D. ejaculatory duct. E. spongy urethra.

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