Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

A&P > Sensory Organs > Flashcards

Sensory Organs Flashcards

1
Q

Where are taste buds found and what do they do?

A

Lingual papillae, and they are sensory receptors for taste

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What type of deafness results from interference in transmission of sound vibrations?

A

Conductive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the names of the auditory ossicles?

A

Malleus, Stapes, Incus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What structures make up the tunica fibrosa?

A

Sclera and cornea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What structures make up the tunica vasculosa

A

choroid, iris, and ciliary body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What structures make up the tunica interna?

A

beginning of optic nerve and retina

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Which bone does the auditory canal pass through?

A

Temporal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which sensations result from activation of interoceptors?

A

Visceral pain, bladder pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are taste cells?

A

Sensory cells that detect tastants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are taste pores?

A

small pits in the epithelium of the tongue into which taste hairs project

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are basal cells?

A

stem cells that give rise to new taste cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are supporting cells?

A

mature cells within a taste bud that do not play a role in gustation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are taste buds?

A

clusters of taste cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are lingual papillae?

A

visible bumps on the tongue, some of which contain taste buds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the near response?

A

The process involved in focusing on close objects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the primary function of the tympanic membrane?

A

To transmit sound vibrations to the auditory ossicles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is a sensory modality mediated by specialized receptors called nociceptors?

A

Pain

18
Q

List the order of events for smelling

A

1: Odorant molecule binds to G-protein coupled receptors on some olfactory hairs
2: Activation of cAMP second messenger system inside olfactory cells
3: Ion channel opens in the olfactory cells’ membraines
4: Influx of cations depolarize olfactory cells
5: Action potentials travel down the olfactory nerve

19
Q

Which sensory receptors are encapsulated nerve endings?

A

Bulbous corpuscles, end bulbs, tactile corpuscles, lamellar corpuscles, muscle spindles, tendon organs

20
Q

Which sensory receptors are unencapsulated nerve endings?

A

Hair receptors, tactile discs, free nerve endings,

21
Q

What is the photopigmentt of Rods?

A

Rhodopsin

22
Q

What is the photopigment of Cones?

A

Photospin

23
Q

What is the photopigmnet of ganglion cells?

A

Melanospin

24
Q

Which photoreceptor is primarily responsible for photopic (day) and trichromatic (color) vision??

A

Cones

25
Q

Which photoreceptor is primarily responsible for night vision and only produces images in shades of gray?

A

rods

26
Q

The axons of bipolar sensory neurons leave the spiral organ to form which nerve?

A

cochlear nerve

27
Q

Equillibrium refers to the perception of what?

A

Balance, orientation in space, and coordination

28
Q

What is a receptive field?

A

Area within which a single sensory neuron is able to detect a stimulus

29
Q

Which nerve carries information to the vestibular nuclei of the pons and medulla oblongata?

A

Vestibular nerve

30
Q

What are the order of events for the semicircular canal detecting angular acceleration?

A

1: Rotation of semicircular canals
2: Endolmph pushes against cupula
3: Stereocilia bend
4: Hair cells depolarize
5: action potentials travel down vestibular nerve

31
Q

What is fast pain?

A

sharp, localized pain that occurs at the time of injury

32
Q

What is slow pain?

A

dull, diffuse pain that occurs immediately following injury

33
Q

What is somatic pain?

A

pain arising from skin, muscles, or joints

34
Q

What is visceral pain?

A

pain arising from internal organs

35
Q

What are the components of the lacrimal apparatus?

A

Lacrimal ducts and lacrimal gland

36
Q

What type of stimulus will maximally activate the sensory receptors within the semicircular ducts?

A

Rotational motion

37
Q

What receptors sense the position and movements of body parts?

A

proprioceptors

38
Q

List the order of events from the vibration of the oval window to the depolarization of hair cells

A

1: Oval window vibrates
2: Pressure wave travels through the perilymph of the scala vestibule
3: Basilar membrane moves up and down
4: Inner hair cells are pushed against the tectorial membrane
5: Stereocilia bend and tip-link proteins open K+ cannels
6: K+ ions enter hair cell causing depolarization

39
Q

Which cochlear chambers contain perilymph?

A

Scala tympani and scala vestibuli

40
Q

What are the two moieties of rhodopsin?

A

Opsin and retinal

A&P (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions