The nerve plexus that innervates the muscles of the pelvic floor and the skin over the coccyx is the ______.
a. sacral plexus
b. lumbar plexus
c. cervical plexus
d. brachial plexus
e. coccygeal plexus
Answer: e. coccygeal plexus
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Which of the following is not a structural characteristic that contributes to erythrocyte gas transport functions?
A) produces energy anaerobically B) few organelles provide room for more hemoglobin C) biconcave shape D) mitotically active
The final electron acceptor in aerobic cell respiration is ________.
A. water B. carbon dioxide C. ATP D. oxygen
In the CNS all axons are myelinated, but in the PNS some are myelinated and some are unmyelinated.
Answer the following statement true (T) or false (F)
The right side of the heart pumps blood through vessels to the lungs and back to the left side of the heart through the __________ circulation.
a. systemic b. coronary c. fetal d. pulmonary