Oxygen moves from the lungs into the blood via
A) diffusion
B) active transport
C) endocytosis
D) pinocytosis
Answer: A) diffusion
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In Guillain-Barre syndrome, the immune system attacks and degrades the myelin sheath of PNS axons. Predict the effect this will have on nerve impulse and motor function.
A. Motor signals will not be sent from the brain down the efferent pathway because the brain cannot generate them. B. Lost insulation from myelin will cause neurons of the PNS to be hyper-excitable and muscular spasms will result. C. The brain will slowly degrade and various brain functions will be lost, including motor functions. D. Lost insulation from myelin will cause neurons of the PNS to lose saltatory conduction, resulting in poor muscle function.
All of the following are muscles of the lower limb EXCEPT the
a) deltoid. b) adductor magnus. c) adductor longus. d) quadriceps femoris. e) vastus medialis.
AB ? A + B is an example of a(n) ________ reaction.
Fill in the blank(s) with the appropriate word(s).
The vessels that carry oxygen to the myocardial cells are called
a. aortic arteries. b. pulmonary arteries. c. pulmonary veins. d. coronary veins. e. coronary arteries.