Deck 9: Sensory and Neural Systems

Question 1

Different groups of cone cells are specialized for absorption in all the following regions of the visible spectrum except

A)Green
B)Red
C)Blue
D)Yellow

Answer 1

Yellow

Question 2

Deep pressure on the skin is sensed by

A)Free nerve endings
B)Meissner\s corpuscles
C)Pacinian corpuscles
D)Merkel\s discs

Answer 2

Pacinian corpuscles

Question 3

Of the four basic taste modalities, the one most limited to the tip of the tongue is

A)Bitter
B)Sour
C)Salty
D)Sweet

Answer 3

Sweet

Question 4

Olfaction (smell) differs from other sensory modalities because it

A)Does not transmit to the cerebral cortex but only to lower brain centers.
B)Does not transmit to the cerebral cortex via the thalamus
C)Can function as either an interoceptor or exteroceptor
D)Uses lateral inhibition

Question 5

Hair cells are involved in all of the following receptors except

A)Semicircular canals
B)The cochlea
C)Taste buds
D)The urethra

Question 6

Sound waves travel from the air to the tympanic membrane by way of the ;

A)Pinna
B)Auditory tube
C)external auditory meatus
D)Cochlear duct

Question 7

The sensory hair cells of the cochlea organ of Corti are anchored on the

A)Basilar membrane
B)Vestibular membrane
C)Tectorial membrane
D)Tympanic membrane

Question 8

The optic nerve and blood vessels exits the eye, and arteries enter it, at the

A)optic chiasma
B)Macula
C)fovea centralis
D)optic disc

Question 9

The ability of the eyes to keep an image focused on the retina despite changes in the distance to the object viewed is called

A)Refraction
B)Hyperopia
C)Adaptation
D)Accommodation

Question 10

Which of the following does not belong with the rest?

A)Rod cells
B)Amacrine cells
C)Bipolar cells
D)Ganglion cells

Question 11

____________ are the basic units of communication in the nervous system.

A)Cells
B)Neurons
C)Axons
D)Dendrites

Question 12

______________ help neurons by providing nutrition, removing waste products, and enhancing the speed of communication between neurons.

A)Axons
B)Dendrites
C)Glial cells
D)Cell body

Question 13

The three basic components of the neurons are ____________, ___________ and ____________.

A)Cell body, Glial cells and Axon
B)Dendrites, Axon and Glial cells
C)Axon, Cell body and Synapse
D)Cell body, Axon and Dendrites

Question 14

The _________________ is a white, fatty covering made up of glial cells that increases the rate at which neural messages are sent.

A)Glial cell
B)Endocrine
C)Axon terminal
D)Myelin sheath

Question 15

Within the neuron, information is communicated in the form of brief electrical messages called _______________.

A)Myelin sheath
B)Synapse
C)Action potential
D)Neurotransmitter

Question 16

The _______________ is the minimum level of stimulation required to activate a particular neuron.

A)Stimulus threshold
B)Action potential
C)Synaptic transmission
D)Neurotransmission

Question 17

The synaptic vesicles contain chemicals called _______________.

A)Synaptic gap
B)Neurotransmitter
C)Interneurons
D)Myelin sheath

Question 18

________________ is the process by which neurotransmitter molecules detach from a postsynaptic neuron and are reabsorbed by the presynaptic neuron so they can be recycled and used again.

A)Inhibitory
B)Excitatory
C)Action potential
D)Reuptake

Question 19

Our ability to perceive, feel, think, move, act and react depends on the delicate balance of ___________________ in the nervous system.

A)Neurotransmitter
B)Nervous cell
C)Neurons
D)Brain

Question 20

_______________ stimulates muscle contractions and is involved in memory functions.

A)Acetylcholine
B)Norepinephrine
C)Dopamine
D)Serotonin

Question 21

________________ is involved in a number of functions, including movement, attention and learning and abnormal levels are involved in some mental disorders.

A)Acetylcholine
B)Norepinephrine
C)Dopamine
D)Serotonin

Question 22

_________________ is involved in sleep, moods and emotional states, including depression.

A)Acetylcholine
B)Norepinephrine
C)Dopamine
D)Serotonin

Question 23

________________ has been implicated in some mental disorders and is involved in activation of neurons throughout the brain and in the process of learning and memory retrieval.

A)Acetylcholine
B)Norepinephrine
C)Dopamine
D)Serotonin

Question 24

_________________ usually communicates inhibitory messages to other neurons and helps balance and offset excitatory messages.

A)Gamma-aminobutyric acid (GABA)
B)Norepinephrine
C)Dopamine
D)Serotonin