The only cranial nerve that does NOT arise from the brain stem is the ____________________ nerve
Fill in the blank(s) with correct word
vagus
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Which of the following type of muscle contains the largest number of mitochondria per cell?
a) Smooth muscle b) Skeletal muscle c) Cardiac muscle d) All the muscle types contain approximately the same number. e) Mitochondria are not found in muscle cells.
An individual tract within the spinal cord contains either sensory nerve signals or motor nerve signals only
Indicate whether this statement is true or false.
Select the correct statement about the heart valves
A) The tricuspid valve separates the left atrium from the left ventricle. B) The mitral valve separates the right atrium from the right ventricle. C) The AV valves are supported by the chordae tendineae so that blood does not flow back into the atria during ventricular contraction. D) Aortic and pulmonary valves control the blood flow into the heart.
The pressure exerted by each type of gas in a gas mixture is the __________ of that gas.
A. partial force B. partial percentage C. partial volume D. partial pressure