The term "leg" refers to which region?
A. The segment from the hip to the knee
B. The segment from the knee to the ankle
C. The segment extending distally from the knee and including the foot
D. The entire lower limb
E. The segment from hip to ankle
Answer: B
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Answer the following statement(s) true (T) or false (F)
1. Most nerves are motor nerves. 2. A nerve fiber is enclosed in its own fibrous sleeve called perineurium. 3. A ganglion is a swelling along a nerve containing the cell bodies of peripheral neurons. 4. A dermatome is a nerve innervating a specific region in the skin. 5. Posterior root ganglia contain somas of unipolar neurons.
Generally, the shape of a nucleus mirrors the shape of the cell within which it is found.
Answer the following statement true (T) or false (F)
Transverse (horizontal) planes divide the body into ________
A) anterior and posterior portions B) superior and inferior portions C) equal left and right portions D) left and right portions
An antibody test on smooth muscle reveals fewer dense bodies and intermediate filaments in a patient with a colon disorder. What is the purpose of these structures?
A. They act as enzymes that remove phosphate from myosin. B. They are part of the intracellular cytoskeleton. C. They maintain relatively constant tension in smooth muscle for a period of time. D. They are shallow invaginations of plasma membrane. E. They allow for rapidly developing action potentials in smooth muscle cells.