When an anesthetic blocks the function of the anterior rami of the cervical spinal nerves, which areas of the body will be affected?
A) skin and muscles of the lateral surface of the forearm
B) skin and muscles of the arm and forearm
C) skin and muscles of the back of the neck and of the shoulders
D) skin over anteromedial thigh and portions of external genitalia
E) muscles of the face
Answer: C
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T cells that cause other cells to respond are referred to as ________________
Fill in the blank with the correct word.
Muscular force can be adjusted to match different loads by
A) recruiting more motor units B) involving more muscle fibers in the contraction C) recruiting larger motor units D) varying the frequency of action potentials in motor neurons E) All of the answers are correct
Which of the following vessels has the thickest tunica media?
A. Large vein B. Small vein C. Large artery D. Small artery E. Capillary
The _________________________ valve controls the blood flow passing into the pulmonary trunk.
Fill in the blank(s) with the appropriate word(s).