Which of the following major events of prenatal development happens first?
A. The eyes open fully
B. The body is covered with lanugo
C. Bone calcification begins
D. The central nervous system begins to form
E. Meconium accumulates in the intestines
D. The central nervous system begins to form
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____________ is overproduction of cerebrospinal fluid in the brain
Fill in the blank(s) with correct word
Dense regular collagenous connective tissue would be found in
A. the brain. B. a skull bone. C. a lymph node. D. a nerve. E. a ligament.
A muscle twitch is ________
A) the maximal force a muscle can generate B) a single contraction of skeletal muscle C) an action potential in a muscle D) a twinge that one feels in an isolated muscle
Sensory neurons within intestinal plexuses that travel in the vagus nerve to the CNS are called ________.
A. myenteric afferents B. paracrine regulators C. intrinsic afferents D. extrinsic afferents