Cell bodies of lower motor neurons that control the diaphragm are located in the:
a. pons
b. brain stem
c. cervical anterior grey horns
d. thoracic anterior grey horns
Answer: c. cervical anterior grey horns
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Natural killer (NK) cells ________
A) can kill cancer cells before the immune system is activated B) are also called cytotoxic T cells C) are cells of the adaptive immune system D) are a type of phagocyte
The body is considered to be in nitrogen balance when the amount of nitrogen ingested in lipids equals the amount excreted in urine
Indicate whether the statement is true or false
An aponeurosis is ________
A) similar to a tendon in function B) a structural part of the interior of muscle cells C) a covering of the myoneural region D) a disease of the neuromuscular junction
Identify the organelle shown in the figure, which is described as stacks of flattened membranes containing chambers.
A) flagellum
B) RER
C) mitochondrion
D) Golgi apparatus
E) SER