EXAM 1
If an individual had issues with homeostatic function such as maintaining body temperature and hunger/satiety, which of the following is most likely affected?
a) hippocampus
b) hypothalamus
c) amygdala
d) thalamus
b) hypothalamus
If there is an influx of sodium ions, which of the following events would occur?
a) Excitatory effect on the neuron
b) Resting membrane potential
c) Large decrease in membrane potential
d) Inhibitory effect on the neuron
a) Excitatory effect on the neuron
Which of the following best describes an example of sensory adaptation?
a) after getting an IV in your arm, your arm hurts worse over time
b) after jumping into the cold pool, overtime you get used to the cold
c) after sitting in the uncomfortable chair, you feel more back pain over time
d) after eating hot cheetos, they become more spicy the more chips you eat
b) after jumping into the cold pool, overtime you get used to the cold
Which of the following sensory systems does not work with the others to maintain balance?
a) olfactory system
b) somatosensory system
c) vestibular system
d) visual system
a) olfactory system
Which of the following is true of LTP?
a) AMPA receptors are not activated by glutamate because Mg2+ blocks the receptor
b) NMDA receptors on the presynaptic membrane are activated by GABA
c) The influx of Ca2+ into NMDA receptors on the postsynaptic membrane causes AMPA receptors to become more effective
d) AMPA and NMDA receptors are both blocked by Mg2+ resulting in glutamate binding to them
c) The influx of Ca2+ into NMDA receptors on the postsynaptic membrane causes AMPA receptors to become more effective
Which of the following correctly matches the part of the neuron and its function?
a) axon & integration zone
b) axon terminal & conduction zone
c) dendrites & input zone
d) soma & output zone
c) dendrites & input zone
Which of the following is the main excitatory neurotransmitter?
a) GABA
b) Norepinephrine
c) Acetylcholine
d) Glutamate
d) Glutamate
Damage to which lobe would lead to changes to the somatosensory system?
a) temporal
b) frontal
c) occipital
d) parietal
d) parietal
Humans have only around 300 olfactory receptor types, why are we able to discriminate thousands of odorants?
a) olfactory neurons are constantly regenerating and create new receptor types
b) this is not true, each odorant only activates one receptor type
c) odorants are broken down and each broken down component activates a different receptor
d) each odorant activates a different combination of receptor types
d) each odorant activates a different combination of receptor types
Fill in the blank: Lesions to the ___ results in excessive eating and lesions to the ___ result in decreased eating
a) Lateral Hippocampus, Parietal Hypothalamus
b) Lateral Hypothalamus, Ventromedial Hypothalamus
c) Ventromedial Hypothalamus, Lateral Hypothalamus
d) Dorsal Hippocampus, Lateral Hypothalamus
c) Ventromedial Hypothalamus, Lateral Hypothalamus
Which of the following scenarios best represents the sympathetic nervous system in use?
a) your pancreas secretes insulin once food is ingested
b) your breathing slows down once you finish running
c) your heart begins racing before the plane take off
d) you're riding a bike
c) your heart begins racing before the plane take off
What is not true of ionotropic and metabotropic receptors?
a) both metabotropic and ionotropic receptors act like ion channels
b) ionotropic receptors are faster-acting compared to metabotropic
c) metabotropic involve G-proteins while ionotropic involve 4-5 sub-units with a pore
d) ionotropic allow for direct passage of ions in and out of cells while metabotropic allow for generation of second messengers
b) both metabotropic and ionotropic receptors act like ion channels
Which of the following parts of the visual pathway would be damaged if someone had difficulty locating an object?
a) retina
b) dorsal stream
c) ventral stream
d) lateral geniculate nucleus
c) dorsal stream
Which of the following cranial nerves is not involved in gustation?
a) cranial nerve VII
b) cranial nerve VIII
c) cranial nerve X
d) cranial nerve IX
b) cranial nerve VIII
What is the purpose of a control group?
a) gives the study a bigger sample size
b) allows the researchers to test more drugs
c) gives researchers a baseline for comparison
d) allows researchers to randomly assign
c) gives researchers a baseline for comparison
What does administration of norepinephrine-dopamine re-uptake inhibitors result in?
a) more NE and DA taken back into the presynaptic terminal
b) decreased production of synaptic vesicles
c) decreased upregulation of NE and DA receptors
d) more NE and DA left in the synaptic cleft
d) more NE and DA left in the synaptic cleft
If someone had damage to their ventral stream, which of the following symptoms would they most likely experience?
a) impairment of tracking the frisbee as it flies through the air
b) not being able to recognize the faces of people you have never met
c) impairment in reaching for a pen on the desk
d) inability to recognize the stuffed animal you have had since you were 4
d) inability to recognize the stuffed animal you have had since you were 4