After a stroke, a patient complains about lack of sensitivity in her right hand. The stroke most likely affected which part of the brain?
A) Postcentral gyrus in the left frontal lobe
B) Precentral gyrus in the right frontal lobe
C) Postcentral gyrus in the left parietal lobe
D) Postcentral gyrus in the right temporal lobe
E) Precentral gyrus in the left frontal lobe
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Question 2) Regarding fertilization, which of the following events happens first?
A) The fast block to polyspermy
B) The cortical reaction
C) The acrosomal reaction
D) The slow block to polyspermy
E) Formation of a fertilization membrane
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Question 3) Which muscle type depends solely on the sarcoplasmic reticulum as its calcium source?
A) Cardiac muscle
B) Skeletal muscle
C) Smooth muscle
D) Smooth and cardiac muscle
E) Skeletal and smooth muscle
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Question 4) A receptor protein in the plasma membrane will not bind to just any chemical in the extracellular fluid, but only to certain ones. This property is called ________.
A) efficacy B) saturation C) fidelity D) selectivity E) specificity
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Question 5) The rate of oxygen diffusion is affected by the pressure gradient of carbon dioxide.
Indicate whether the statement is true or false
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Question 6) Which of the following functions would most likely be controlled by the representational hemisphere of the cerebrum?
A) Balancing your checkbook
B) Answering this question
C) Painting a picture
D) Diagnosing a patient's disease
E) Giving a speech
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Question 7) Which of the following might be injected into a patient who is prone to forming blood clots and therefore at risk of a heart attack or stroke?
A) Fibrinogen
B) Thromboplastin
C) Fibrin
D) Factor X
E) Heparin
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Question 8) Minerals are ________, whereas vitamins are ________.
A) inessential nutrients; essential nutrients
B) inorganic elements; organic compounds
C) micronutrients; macronutrients
D) water-soluble elements; lipid-soluble compounds
E) incomplete nutrients; complete nutrients
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Question 9) In the fast block to polyspermy, binding of sperm opens up ________ channels, which depolarizes the egg membrane and ________.
A) Na+; prevents the entrance of Ca2+
B) Na+; prevents the entrance of any more sperm
C) Ca2+; prevents the entrance of more Na+
D) Na+; prevents the entrance of more Na+
E) Ca2+; prevents the entrance of any more sperm
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Question 10) When ________ become enclosed in lacunae, they become cells called ________.
A) osteoblasts; osteoclasts
B) osteocytes; osteoclasts
C) osteoblasts; osteocytes
D) osteogenic cells; osteoblasts
E) osteocytes; osteoblasts
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