During the act of defecation the coccyx is deflected posteriorly. What muscle is responsible for pulling the coccyx anteriorly after defecation?
A. Iliococcygeus
B. Coccygeus
C. Puborectalis
D. Pubococcygeus
E. External anal sphincter
Answer: B
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Most commonly, a synapse is made between a
A. presynaptic neuron's dendrite and a postsynaptic membrane's cell body. B. presynaptic neuron's axon and a postsynaptic neuron's dendrite. C. presynaptic neuron's axon hillock and a postsynaptic neuron's cell body. D. presynaptic neuron's soma and a postsynaptic neuron's synaptic knob.
The two major control systems of the body are the ____________________ and the ____________________
Fill in the blank(s) with correct word
Nursing babies obtain some immunity by intestinal absorption of antibodies found in their mother's milk. This process requires the movement of intact antibodies from the lumen of the intestine into the blood. This process involves a combination of
a. endocytosis. b. exocytosis. c. cotransport carriers. d. endocytosis and cotransport carriers. e. endocytosis and exocytosis.
Reflexes are described as
A. slow and spontaneous. B. pre-programmed and voluntary. C. spontaneous and self-initiating. D. rapid and involuntary.