Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Histology Lecture (Finals) > Tactile and Special Sensory Organs - Module 18 > Flashcards

Tactile and Special Sensory Organs - Module 18 Flashcards

Tactile and Special Sensory Organs

1
Q

These are sensory receptors that responds to mechanical pressure or distortion

A

Mechanoreceptors

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

4 main types of Mechanoreceptors in Glabrous skin

A
  1. Pacinian Corpuscle
  2. Meissner’s Corpuscles
  3. Merkel’s Discs
  4. Ruffini Endings
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Type of mechanoreceptor that responds to light touch, and adapts rapidly to changes in texture

A

Tactile Corpuscles (Meissner)

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

Type of Mechanoreceptor that detects tension deep in the skin and fascia

A

Bulbous Corpuscles (Ruffini)

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

This type of mechanoreceptor detects sustained pressure

A

Merkel Nerve Endings

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

This type of mechanoreceptor detects rapid vibrations

A

Lamellar Corpuscles (Pacinian)

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

Receptors of the ear that transduce sound for the brain

A

Hair cells in Cochlea

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

Provides senses of touch, pressure, and vibration

A

Cutaneous Mechanoreceptor

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

Slow adapting receptors:

A

Merkel’s disc and Ruffini corpuscle

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

Intermediate adapting

A

Free nerve endings

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

Rapidly adapting receptors

A

Meissner’s corpuscle and Pacinian corpuscle

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

The afferent neurons transmits messages through synapses in the

A

Dorsal Column nuclei

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

Where the second order neurons send signals to

A

Thalamus

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

Third order of neurons are in the

A

Ventrobasal complex

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

Third order neurons send signals to the ____________________

A

Somatosensory Complex

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

2 pathways of nerve impulses

A
  1. Medial lemniscal Pathway (Proprioreception & touch perception)
  2. Spinothalamic Pathway (Temperature & Pain)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Light touch is sensed by _________ of hair follicle receptors

A

Meissner’s Corpuscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Pain is sensed by ___________ of hair follicle receptors

A

Nociceptors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Temperature is sensed by ____________ of hair follicle receptors

A

Thermoreceptors/Nociceptors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Strong pressure is sensed by ____________ of hair follicle receptors

A

Merkel’s disk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

This corpuscle/receptor lies deep in the dermis and subcutaneous tissue

A

Pacinian Corpuscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Receptors located at fingertips, tongue, soles, and genitals

A

Meissner’s corpuscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Are elongated and ovoid mechanoreceptors

A

Meissner’s corpuscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Merkel cell nerve complexes are known as:

A

Touch domes, Hederiform endings
Iggo’s capsule, Pinbus corpuscles, Haarschibe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Mechanoreceptor sensitive to skin stretching and contributes to fine motor control

A

Ruffini ending

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Most widespread sensory receptor

A

Free nerve endings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Rapidly adapting receptors that detects touch, temperature, pain, and itch

A

Penicillate Fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

These are particularly receptive to Cold sensation

A

Papillary Fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Example of Special Sensory Organs

A

Olfactory mucosa, Gustatory cells, Retina, Internal Ear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Responsible for the sense of smell

A

Olfactory receptors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Location of Olfactory receptors

A

Roof of Nasal Cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Receptor organ for Hearing

A

Organ of Corti

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

True or False, Organ of Corti is composed of two rows of outer hair cells and one row of inner hair cells

A

False, there are 3 rows of outer hair cells and 1 row of inner hair cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

5 Layers of Cornea

A
  1. Outer Corneal Epithelium
  2. Bowman’s Membrane
  3. Substantia Propria
  4. Descemet’s Membrane
  5. Inner Endothelium
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Lining of the Corneal Epithelium

A

Stratified Squamous non Keratinized Epithelium

36
Q

This layer of cornea is the anterior limiting membrane that forms basement membrane for corneal epithelium

A

Bowman’s Membrane

37
Q

This layer of cornea is transparent and serves as ground matrix with glycosaminoglycans and fibroblast; Collagen is arranged in alternate lamellae with regular spacing

A

Substantia propria

38
Q

This layer of cornea is the posterior limiting membrane that is thin and homogenous and continues into irido corneal angle

A

Descemet’s membrane

39
Q

This structure is the nervous coat and extends from optic disc to ora serrata

40
Q

Yellow spot at the posterior part of Retina

A

Macula Lutea

41
Q

Where optic nerve emerges

A

Optic disc

42
Q

Layers of Retina

A
  1. Pigment Layer
  2. Lamina of Rods and Cones
  3. External Limiting membrane
  4. Outer nuclear layer
  5. Outer plexiform layer
  6. Inner nuclear layer
  7. Inner plexiform layer
  8. Ganglion cell layer
  9. Lamina of Nerve Fibers
  10. Internal Limiting Membrane
43
Q

This layer of retina functions as phagocyte, antireflection of light, and blood retinal barrier

A

Pigment Epithelium

44
Q

Basement membrane of Pigment epithelium is known as ___________________

A

Bruch’s membrane

45
Q

This layer of retina supports rods and cones and is a sieve like membrane

A

External Limiting Membrane

46
Q

This layer of retina contains nucleus of rods and cones and has several lauers

A

Outer nuclear Layer

47
Q

This layer of retina forms synaptic area between rods and cones and contains bipolar neurons, horizontal cells, and amacrine cells

A

Outer Plexiform Layer

48
Q

This layer of retina shows the nucleus of bipolar, horizontal cells, amacrine cells, and muller cells

A

Inner Nuclear Layer

49
Q

This layer of retina forms the Synaptic process of bipolar, amacrine, and muller with ganglion cells; has plexiform appearance

A

Inner Plexiform Layer

50
Q

This layer of retina has cell body and nucleus of large ganglion cells and amacrine cells

A

Ganglion Layer

51
Q

This layer of retina is the homogenous layer formed by end feet of muller cell and astrocytes

A

Internal Limiting Membrane

52
Q

Meninges of the Brain

A

Duramater
Arachnoid
Piamater

53
Q

Are myelinated and arranged in fasciculi

A

Nerve Fibers

54
Q

Accessory structures of the Eye

A

Eyelids and eyelashes

55
Q

Modified sweat glands between eyelashes secretes acidic sweat to kill bacteria and lubricate eyelashes

A

Ciliary Glands

56
Q

Membrane that lines the eyelids; connects the surface of eye forming a seal

A

Conjunctiva

57
Q

Produces Lacrimal Fluid

A

Lacrimal Gland

58
Q

Drains lacrimal fluid from eyes

A

Lacrimal Canals

59
Q

Drains lacrimal fluid from eyes and provides passage towards nasal cavity

A

Nasolacrimal duct

60
Q

Layers of the Eye

A

Fibrous Tunic
Choroid
Sensory Tunic

61
Q

White connective tissue layer of eye

62
Q

Transparent and central anterior portion that allows light to pass through

63
Q

True or False, Cornea has the capability to repair itself easily

64
Q

The only human tissue that can be transplanted without fear of rejection

65
Q

Pigmented layer of eye that gives eye color

66
Q

Pigment that is visually purple and high concentration in rods

67
Q

Part of retina that has all grey perception

68
Q

Part of retina that allows for detailed color vision

69
Q

Area of retina with only cones

A

Fovea centralis

70
Q

Biconcave crystal-like structure of the eyes that is held in place by a suspensory ligament

71
Q

Watery fluid found in chamber between lens and cornea; similar to blood plasma

A

Aqueous humor

72
Q

Gel like substance behind the lens

A

Vitreous humor

73
Q

2 senses housed by the ear

A

Hearing and Balance

74
Q

3 divisions of ear

A

Outer, Middle, Inner

75
Q

This part of ear is lined with skin

A

External Auditory Canal

76
Q

Air-filled cavity within the temporal bone

A

Middle Ear or Tympanic Cavity

77
Q

Structure connecting middle ear with the throat

A

Eustachian Tubes

78
Q

3 bones of the ear

A

Malleus (hammer)
Incus (anvil)
Stapes (stirrip)

79
Q

2 organs of equilibrium

A

Vestibule (Static equilibrium) and Semicircular Canals (Dynamic equilibrium)

80
Q

Receptors in the vestibule

81
Q

Receptors in the semicircular canals

A

Crista ampullaris

82
Q

What type of receptors are smell and taste

A

Chemoreceptors

83
Q

Type of papillae in tongue that is sharp and has no taste buds

A

Filiform papillae

84
Q

Rounded papillae with taste buds

A

Fungiform papillae

85
Q

Large papillae with taste buds

A

Circumvallate Papillae

86
Q

Nerves that carries impulses to the gustatory complex

A

Facial Nerve
Glossopharyngeal Nerve
Vagus Nerve

87
Q

Taste Sensations

A

Sweet (Sugars, Saccharine, Amino acids)
Sour (Acids)
Bitter (Alkaloids)
Salty (Metal ions)
Umami (Glutamate, aspartate)

Histology Lecture (Finals) (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions