During muscle contraction, the I band

a. hides the H zone.
b. shortens or narrows.
c. overlaps the Z line.
d. always remains the same length.


b. shortens or narrows.

Anatomy & Physiology

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When a person is transfused with the wrong blood type,

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The subcutaneous layer is loose connective tissue that is rich in ________ cells.

What will be an ideal response?

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A patient with black lung disease and asbestosis may demonstrate a significant decrease in vital capacity, indicating:

A) pleural cavity infiltration B) increased forced expiratory volume C) chronic bronchitis D) restrictive lung disease

Anatomy & Physiology