BIOL3204 MIDTERM 3 EXAM QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
the two subdivisions of the autonomic division of the nervous system are
sympathetic and parasympathetic divisions
The adrenal medulla is important to the sympathetic branch of the autonomic
nervous system because it
is a source of catecholamines
Which division of the autonomic nervous system contains adrenergic neurons?
only the sympathetic division of the nervous system
Which of the following is FALSE?
Activation of a1- receptors opens NA+ channels in the membrane.
Which of the following statements is true?
Some blood vessels contain alpha-adregernic receptors that cause vasoconstriction in
the presence of epinephrine.
If a somatic motor neuron fires an action potential, then __________.
the response is always excitatory
The motor end plate
a folded area of muscle cell membrane with nicotinic ACh receptors clustered at the top
of each fold.
Aliens on Planet X have a hormone that has a structure similar to epinephrine.
Scientists are calling it X-epinephrine and would like to see if it has the same
effects as epinephrine does in humans. Upon administration to humans, which of
, the following results would best demonstrate that X-epinephrine is an
epinephrine agonist?
the subjects heart rate increase.
Aliens on Planet X have a hormone that has a structure similar to epinephrine.
Scientists are calling it X-epinephrine and would like to see if it has the same
effects as epinephrine does in humans. If the scientists find that X-epinephrine
causes pupil dilation, localized sweating, increased blood pressure, and high
blood glucose levels in the subjects, what might they conclude about the nature
of X-epinephrine?
It behaves like catecholamines and acts on adrenergic receptors.
If a person has a genetic disorder that caused him/her to not produce
norepinephrine, which type of tissue would be affected the least?
bronchioles
Autonomic pathways consist of 2 neurons in --------. The first is called the ----, and
it originates ------.
series, preganglionic neuron, in the CNS
Most sympathetic pathways originate in the ------ of the spinal cord, whereas most
parasympathetic pathways originate in the -------
thoracic and lumbar regions, sacral region and brain stem
The synapse between a postganglionic autonomic neuron and its target cell is
called a -----.
Autonomic postganglionic axons end with a series of swollen areas called ------
neuroeffector junction, varicosities
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
the two subdivisions of the autonomic division of the nervous system are
sympathetic and parasympathetic divisions
The adrenal medulla is important to the sympathetic branch of the autonomic
nervous system because it
is a source of catecholamines
Which division of the autonomic nervous system contains adrenergic neurons?
only the sympathetic division of the nervous system
Which of the following is FALSE?
Activation of a1- receptors opens NA+ channels in the membrane.
Which of the following statements is true?
Some blood vessels contain alpha-adregernic receptors that cause vasoconstriction in
the presence of epinephrine.
If a somatic motor neuron fires an action potential, then __________.
the response is always excitatory
The motor end plate
a folded area of muscle cell membrane with nicotinic ACh receptors clustered at the top
of each fold.
Aliens on Planet X have a hormone that has a structure similar to epinephrine.
Scientists are calling it X-epinephrine and would like to see if it has the same
effects as epinephrine does in humans. Upon administration to humans, which of
, the following results would best demonstrate that X-epinephrine is an
epinephrine agonist?
the subjects heart rate increase.
Aliens on Planet X have a hormone that has a structure similar to epinephrine.
Scientists are calling it X-epinephrine and would like to see if it has the same
effects as epinephrine does in humans. If the scientists find that X-epinephrine
causes pupil dilation, localized sweating, increased blood pressure, and high
blood glucose levels in the subjects, what might they conclude about the nature
of X-epinephrine?
It behaves like catecholamines and acts on adrenergic receptors.
If a person has a genetic disorder that caused him/her to not produce
norepinephrine, which type of tissue would be affected the least?
bronchioles
Autonomic pathways consist of 2 neurons in --------. The first is called the ----, and
it originates ------.
series, preganglionic neuron, in the CNS
Most sympathetic pathways originate in the ------ of the spinal cord, whereas most
parasympathetic pathways originate in the -------
thoracic and lumbar regions, sacral region and brain stem
The synapse between a postganglionic autonomic neuron and its target cell is
called a -----.
Autonomic postganglionic axons end with a series of swollen areas called ------
neuroeffector junction, varicosities
