Cardiac muscle cells are nourished via blood supply provided from the __________.

a. pulmonary circuit
b. coronary circuit
c. systemic circuit
d. coronary, pulmonary, and systemic circuits


Answer: b. coronary circuit

Anatomy & Physiology

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The blood testis barrier is to newly formed sperm cells as the blood thymus barrier is to ________

A) plasma cells B) white pulp C) T lymphocyte precursors D) mast cells

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What activates memory cells?

A) An encounter with an antigen B) An encounter with mast cells C) Cells that have undergone partial differentiation D) Stem cells

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Guinea pigs do not synthesize vitamin ____, so they need to eat fresh foods or supplements to ensure they do not develop vitamin deficiencies

Fill in the blank(s) with correct word

Anatomy & Physiology

When a muscle is unable to respond to stimuli temporarily, it is in which of the following periods?

A) relaxation period B) refractory period C) latent period D) fatigue period

Anatomy & Physiology