A motor unit refers to
a. a single motor neuron plus all of the muscle fibers it innervates.
b. a single muscle fiber plus all of the motor neurons that innervate it.
c. all of the motor neurons supplying a single muscle.
d. a pair of antagonistic muscles.
e. a sheet of smooth muscle cells connected by gap junctions.
A
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Answer the following statement true (T) or false (F)
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A. Lymphangioma B. Lymphedema C. Lymphadenopathy D. Lymphadenomegaly E. Lymphadenitis
Which of the following covers the dentin, providing protection and firmly anchoring the periodontal ligament?
A) root B) enamel C) cementum D) gingiva E) blood vessels and nerves
An example of a negative feedback loop would be:
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