Local potentials are ________, meaning they vary in magnitude according to the strength of the stimulus.
A) self propagating
B) graded
C) excitatory
D) inhibitory
E) stabile
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Question 2) A young girl falls off her bike and lands on her hand, breaking the medial bone of her antebrachium. Which bone did she break?
A) Her radius
B) Her carpal
C) Her humerus
D) Her ulna
E) Her metacarpal
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Question 3) The spiral organ is housed within which of the following structures?
A) Cochlear duct
B) Vestibule
C) Scala vestibuli
D) Scala tympani
E) Anterior semicircular duct
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Question 4) The prefix hypo- means ________, whereas hyper- means ________.
A) front; back
B) right; left
C) clear; dark
D) inside; outside
E) below; above
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Question 5) The alleles possessed by all members of a population collectively are called the ________.
A) phenotype
B) species DNA
C) genetic drift
D) population DNA
E) gene pool
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Question 6) Which of the following will cause the plasma membrane to hyperpolarize when at its RMP?
A) An inflow of sodium
B) An outflow of chloride
C) An inflow of potassium
D) An inflow of chloride
E) An inflow of calcium
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Question 7) The right hand and wrist of an adult has ________ bones.
A) 27 B) 25 C) 18 D) 15 E) 28
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Question 8) The allele for cleft chin (C) is dominant to the allele for uncleft chin (c). A male and female who are both heterozygous for cleft chin have a child. What is the chance that this child will have an uncleft chin?
A) 100 B) 75 C) 25 D) 50 E) 0
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Question 9) Which of the following decreases blood pressure?
A) Aldosterone
B) Atrial natriuretic peptide
C) Angiotensin II
D) Antidiuretic hormone
E) Norepinephrine
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Question 10) Which structure acts as a transducer in the spiral organ (organ of Corti)?
A) Inner hair cell
B) Tectorial membrane
C) Round window
D) Stereocilium
E) Basilar membrane
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