Oxygenated blood reaches the fetus through the ________.
A) placental sinus
B) umbilical vein
C) maternal arteries
D) umbilical arteries
E) maternal vein
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Question 2) The area where the major vessels lead to and from the heart's chambers is called the ________ of the heart. The pointy, inferior portion is called the ________.
A) apex; base
B) atrium; ventricle
C) base; apex
D) ventricle; atrium
E) endocardium; epicardium
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Question 3) The autonomic effect on a target cell depends only on the neurotransmitter reaching that target cell.
Indicate whether the statement is true or false
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Question 4) The term ________ refers to a membrane that allows some things to pass through it, but not others.
A) glycocalyx
B) selectively permeable
C) phospholipid bilayer
D) specificity
E) carrier-mediated
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Question 5) The triads of a muscle fiber consist of ________.
A) two A bands and one I band
B) two thick myofilaments and one thin myofilament
C) two thin myofilaments and one thick myofilament
D) two T tubules and one terminal cisterna
E) two terminal cisternae and one T tubule
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Question 6) Which of the following does not put women at risk for hypocalcemia?
A) Removal of the parathyroid glands
B) Lactation
C) Pregnancy
D) Removal of the thyroid gland
E) Lack of exposure to UV radiation
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Question 7) Which of the following is secreted during the postabsorptive state?
A) Secretin
B) Gastrin
C) Insulin
D) Growth hormone
E) Cholecystokinin
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Question 8) The shallow depression seen on the external surface of the heart between the left and right ventricles is called the ________.
A) interventricular septum
B) interventricular sulcus
C) left atrium
D) coronary sulcus
E) coronary sinus
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Question 9) Fibers of the vagus nerve end very near or within their target organs.
Indicate whether the statement is true or false
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Question 10) Which of the following would be caused by a contraction of smooth muscle?
A) Elevating the eyebrows
B) Deep inspiration
C) Goose bumps
D) Blinking the eyelids
E) Blood leaving the left ventricle of the heart