BIO 264 EXAM 4 ACTUAL PAPER SOLVED
QUESTIONS
◉ A cell containing only a1 adrenergic receptors is MOST
sensitive to _________.
Answer: norepinephrine
◉ A majority of postganglionic sympathetic neurons release
_____________ as a neurotransmitter.
Answer: norepinephrine
◉ Name the two main subtypes of adrenergic receptors.
Answer: alpha and beta.
◉ The excitatory or inhibitory effect of a postganglionic
sympathetic fiber is determined MOSTLY by which of the
following features or structures:
A) The function of the postsynaptic receptor to which it binds
B) The specific organ innervated
C) The ganglion where the postganglionic fiber originates
, D) The emotional state of the individual
Answer: A) The function of the postsynaptic receptor to which it
binds
◉ The adrenal medulla secretes 80% _____________ and 20%
_____________.
Answer: epinephrine; norepinephrine
◉ Which of the following phrases (statements) are MOST
correctly matched?
Answer: Nicotinic receptors :: May be found in collateral ganglia
◉ Where would you expect to find nicotinic receptors?
Answer: A) postganglionic neurons of the parasympathetic
division
B) postganglionic neurons of the sympathetic division
C) adrenal medulla
◉ Which one of the following statements is true?
A) Increased parasympathetic activity is consistent with increased
physical activity.
QUESTIONS
◉ A cell containing only a1 adrenergic receptors is MOST
sensitive to _________.
Answer: norepinephrine
◉ A majority of postganglionic sympathetic neurons release
_____________ as a neurotransmitter.
Answer: norepinephrine
◉ Name the two main subtypes of adrenergic receptors.
Answer: alpha and beta.
◉ The excitatory or inhibitory effect of a postganglionic
sympathetic fiber is determined MOSTLY by which of the
following features or structures:
A) The function of the postsynaptic receptor to which it binds
B) The specific organ innervated
C) The ganglion where the postganglionic fiber originates
, D) The emotional state of the individual
Answer: A) The function of the postsynaptic receptor to which it
binds
◉ The adrenal medulla secretes 80% _____________ and 20%
_____________.
Answer: epinephrine; norepinephrine
◉ Which of the following phrases (statements) are MOST
correctly matched?
Answer: Nicotinic receptors :: May be found in collateral ganglia
◉ Where would you expect to find nicotinic receptors?
Answer: A) postganglionic neurons of the parasympathetic
division
B) postganglionic neurons of the sympathetic division
C) adrenal medulla
◉ Which one of the following statements is true?
A) Increased parasympathetic activity is consistent with increased
physical activity.
