Physiology Lecture quiz 3

Question 1

In the development of the nervous system the hindbrain becomes WHAT?

Answer 1

Rhombencephalon-cerebelum,pons,medula

Question 2

When voltage-gated K+ channels of a resting neuron open,…WHAT HAPPENS

Answer 2

k+ leaves the neuron

Question 3

The ion necessary to initiate the release of acetylcholine into the synaptic cleft is..WHAT?

Answer 3

calcium

Question 4

Which of the following glial cell is matched incorrectly with it’s function?

Answer 4

schwan cells

Question 5

Cerebrospinal fluid is secreted by the……WHAT?

Answer 5

choroid plexus

Question 6

The brain consumes about half of the ________ circulating in the body.

Answer 6

glucose/fat

Question 7

Composition of the medulla oblongata…what belong there which not belong

Answer 7

belongs-regulates breathing heartbeats vomiting reflex digestion sneezing swallowing
doesn’t belong- eye movement balance aggressive behavior

Question 8

Which is false about the hypothalamus

Answer 8

false-postural reflexes
true- body temp regulation

Question 9

The most primitive region of the cerebrum is probably the….WHAT?

Answer 9

the limbic system

Question 10

Which functions in the control of movement?

Answer 10

motor cortex and cerebellum

Question 11

An important structure in both learning and memory is the..WHAT?

Answer 11

hippocampus

Question 12

Caffeine and related stimulants exert their effects by doing WHAT?

Answer 12

blocking the adenosine receptors and inhibition of phosphobodies/inhibiting specific neuromodulater

Question 13

Nociceptors are responsible for the perception of….WHAT?

Answer 13

sensation and pain

Question 14

Sound waves are converted into vibrations by the..WHAT?

Answer 14

eardrum

Question 15

The receptors of equilibrium and hearing are the….WHAT?

Answer 15

hair cells

Question 16

The structure that partially covers the organ of Corti and is attached to the stereociliar of the hair cells is the_____WHAT?

Answer 16

tectorial membrane

Question 17

Which structures monitor rotational acceleration of the head?

Answer 17

cristae semicircular canals

Question 18

The hair cells of utricle and saccule are in…WHERE?

Answer 18

vestibule

Question 19

The vitreous chamber of the eye…is WHAT

Answer 19

the large space behind the eye lens contains a thick gel like fluid called vislerous humor gel

Question 20

Which cells are NOT found in the retina?

Answer 20

rods cores photorecepors- its the eyes blind spot

cells can not be found in the retina

Question 21

Exocrine glands, smooth muscles, and cardiac muscles are controlled by the_____________

Answer 21

ANS autonomic nervous system

Question 22

In general, the nervous system is made up of which two types of cells? Select 2 of them

Answer 22

neurons and glial cells

Question 23

Interneurons are found_____WHERE_____

Answer 23

central nervous system (CNS)

Question 24

After an injury, on a field trip, the whole Physiology class has difficulty recognizing and interpreting certain sounds. These symptoms imply damage to the WHAT?

Answer 24

auditory cortex

Question 25

A viral infection involving the vestibular nuclei may result in..WHAT?

Answer 25

vertigo dizziness and imbalance

Question 26

For summation to occur, a second potential must arrive before a previous one has been completed. T/F

Answer 26

true

Question 27

Products from the cell body of a neuron are transported to the axon terminals by anterograde transport. T/F

Answer 27

true

Question 28

How would blocking retrograde transport in an axon affect the activity of a neuron?

Answer 28

the neuron becomes unable to produce action potentials

Question 29

Which of these has a higher concentration in cerebrospinal fluid than in the blood?

Answer 29

H+

Question 30

The inability to remember newly acquired information is called..WHAT?

Answer 30

anterograde amnesia

Question 31

Symptoms of the fight-or-flight reaction include all of these EXCEPT

Answer 31

hunger

Question 32

Put these structures of the visual system in the order that they transmit visual information from the retina. YOU NEED TO CHECK FROM THE MOMENT THE LIGHT HIT THE STRUCTURE OF THE EYE

Question 33

With the exception of olfaction, all sensory pathways first travel to the ________, which acts as a relay and processing station.

Answer 33

thalamus

Question 34

false about White Matter?

Answer 34

true- composed bundle of axons coated with myelin

Question 35

About Tonic receptors, which one is correct

Answer 35

They respond as long as the stimulus is maintained and adapt slowly.

Question 36

Receptors that work through second messenger systems are called gamabotropic receptors. T/F

Answer 36

false

Question 37

Graded potentials that arrive at postsynaptic neurons are called inhibitory if they make that cell more likely to fire an action potential. T/F

Answer 37

false

Question 38

Chemicals such as histamine, prostaglandins, serotonin, and substance P________________

Answer 38

only sensitize and activate nociceptors

Question 39

The brain area described as the center for emotions is the..WHAT?

Answer 39

amygdala

Question 40

Hyperkalemia brings neuron closer to the threshold…T/F

Answer 40

false