Quizzes questions Flashcards
The two most common neurotransmitters in the nervous system are…
GABA and glutamate
Neurotransmitters in the synapse elicit an inhibitory or excitatory response from the post-synaptic neuron by….
binding to chemically gated ion channels
The Diencephalon of the brain contains the…
thalamus and hypothalamus
True or False: During an action potential, all the voltage gated ion channel along the entire axon open simultaneously. That’s why the action potential is “All or Nothing”
FALSE
ACTH (adrenocorticotropic hormone) is released from the ____. ACTH then causes the release of ______.
pituitary; cortisol
The researcher that coined the term “homeostasis” was…
Walter Cannon
The term allostatic load refers to…..
physical and mental cost of experiencing stress for a long time
One consequence of Descartes dualistic approach to the Mind-Body problem was that later medical models…
ignored possible interactions of mental and physiological processes
Research by …. established much of what we now know about the autonomic nervous system.
Walter Cannon
Joanne lost her job a few weeks ago. At first she felt really overwhelmed about being unemployed. A few weeks later, she’s still worried about finding a new job and she has to watch her spending, but she feels like she’s doing ok. Joanne would be considered to be in the …… of stress adaptation
Resistance
Cannon and Bard’s (1928) research with cats showed that if the cat’s cerebrum was disconnected but the hypothalamus remained intact, the cats…
A) could still maintain physiological homeostasis
B) would take a defensive posture when touched
C) could still land on their feet
D) All of the above
E) None of the above
F) A and B only
D) All of the above
The postganglionic nerves of the parasympathetic nervous system _???_______ because __________.
a) have few branches; the effects are localized to specific organs
b) are adrenergic; they release norepinephrine
c) have many branches; activate many different muscle groups
d) are long; the associated ganglia form a chain near the spine
a) have few branches; the effects are localized to specific organs
The HPA axis involves connections between the hypothalamus and pituitary that ultimately regulate the release of cortisol. These connections originate in the _______ of the hypothalamus.
a) dorsal paraventricular nucleus
b) ventral suprachiasmatic nucleus
c) medial paraventricular nucleus
d) ventral dorsolateral nucleus
c) medial paraventricular nucleus
Which of the following is a similarity between the somatic and autonomic nervous systems
A) Both contain sensory and motor nerves
B) Both have short preganglionic nerves and long postganglionic
C) Both release the neurotansmitter acetylcholine from their postganglionic nerves
D) All of the above
E) None of the above
F) A and C only
A) Both contain sensory and motor nerves
If hormone X was regulated through a negative feedback loop, when levels of hormone X are high, …..
a) hormone X should decrease the production of hormone Y
b) the production of hormone X should increase
c) the production of hormone X should decrease
d) hormone X should stimulate production of hormone Y
c) the production of hormone X should decrease
