sensation Flashcards

1
Q

The system that provides information about the body senses, including: touch
movement
pain
skin temperature

A

Somatosensory System

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2
Q

The sensory system that provides information about the position and movement of the head, which contributes to one’s sense of balance.

A

Vestibular system

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3
Q

The vestibular structures may be divided into two types:

A

the otolith organs
semicircular canals

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4
Q

The sensory organs of the vestibular system are found in the inner ear, adjacent to the structures responsible for audition

A

Movement Receptors

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5
Q

A structure in the inner ear vestibular system that provides information about the angle of the head relative to the ground and about linear acceleration.

A

Otolith organ

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6
Q

One of three looping chambers found in the inner ear that provide information regarding the rotation of the head.

A

Semicircular canal

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7
Q

A stone made from calcium carbonate that is attached to hair cells in the otolith organs.

A

Otolith

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8
Q

the largest and heaviest organ of the human body.
provides a boundary separating what is inside from what is outside.
It prevents dehydration and protects the body from dirt and bacteria.

A

Skin

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9
Q

Human __________ is found on the lips, palms of the hands, and soles of the feet.

A

Glabrous Skin (Hairless skin)

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10
Q

2 types of skin

A

hairy skin and Glabrous Skin

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11
Q

3 layers of the skin

A

dermis
epidermis
subcutaneous tissue

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12
Q
  • Outer layer of the skin
A

Epidermis

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13
Q
  • The layer of skin below the epidermis.
A

Dermis

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14
Q

The layer of tissue below the dermis that contains fat and connective tissue.

A

Subcutaneous Tissue

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15
Q
  • A touch receptor that responds to physical
    displacement such as bending or
    stretching.
A

MECHANORECEPTORS

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16
Q

The axon fibers are surrounded by a fluid-filled capsule formed of connective tissue.

A

Encapsulated mechanoreceptors

17
Q

Two major types: ( encapsulated)

A

Meissner’s corpuscles
Pacinian corpuscles.

18
Q

Two major types: ( non encapsulated)

A

Merkel’s disks
Ruffini’s endings

19
Q

An encapsulated mechanoreceptor located near the surface of the skin that senses pressure.

A

Meissner’s corpuscles

20
Q

An encapsulated mechanoreceptor located deeper in the skin, in joints, and in the digestive tract that senses pressure and vibration.

A

Pacinian corpuscles

21
Q

A nonencapsulated mechanoreceptor located near the surface of the skin that senses pressure.

A

Merkel’s disks

22
Q

A nonencapsulated mechanoreceptor
located deep in the skin that senses stretch.

A

Ruffini’s endings

23
Q

refers to the length of time it will continue to respond to unchanging stimuli.

A

rate of adaptation

24
Q

both demonstrate rapid adaptation

A

Meissner’s corpuscles and Pacinian corpuscles

25
Q

_____ and ______ are slow adapting

A

Merkel’s disks and Ruffini’s endings

26
Q

The pathway taken by touch information from the mechanoreceptors to the brain.

A

Dorsal column-medial lemniscal pathway

27
Q

Cranial Nerves involved in the processing of sensory information:

A

Cranial Nerve V (Trigeminal nerve)
Cranial Nerve VII (Facial Nerve)
Cranial Nerve IX (Glassopharyngeal Nerve)
Cranial Nerve X (Vagus Nerve)

28
Q

Pain that is perceived as arising from a missing body part.

A

Phantom pain

29
Q

The perception of touch of a body part as arising from a missing body part.

A

Referred sensations

30
Q

combines sensation with emotion and cognition. No other sensory modality is as dramatically affected by culture, emotion, context, and experience as our sense of _____

A

pain

31
Q

A free nerve ending that responds to painful stimuli.

A

Nociceptor