Regina began an exercise program six months ago, and the muscles of her upper limbs
and lower limbs are more prominent. Exercise can lead to formation of new muscle by
A) stimulating connective tissue to differentiate as muscle tissue.
B) stimulating motor neurons to divide and innervate more muscle cells.
C) stimulating synthesis of myoglobin.
D) stimulating skeletal muscle cells to release IL-6, which stimulates satellite cells to
divide, producing more muscle cells.
D
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Most of the old erythrocytes are removed from the circulation as they rupture, passing through the narrow capillaries of the ____________________ (specific organ)
Fill in the blank(s) with correct word
The abdominopelvic regions found immediately under the ribs are the
A. iliac. B. hypochondriac. C. lumbar. D. hypogastric. E. umbilical.
Each neuron in the CNS may receive input from
A) only one synaptic knob. B) about 10 dendrites. C) thousands of axons. D) one synaptic knob at each end.
Acetylcholine binds to both muscarinic and nicotinic receptors.
Answer the following statement true (T) or false (F)