Module Exam 6: Somatosensory System Flashcards Preview

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Flashcards in Module Exam 6: Somatosensory System Deck (74)
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Enumerate General senses

Light touch, Temperature, Pain, Pressure & Proprioception(vibration sense) "LTPPP"

1

Awareness and precise location of very delicate mechanical stimuli

Tactile sense

2

Tactile sense includes

Two-point sense, Graphesthesia & Fine touch/Stereognosis "TGF"

3

Ability to recognize objects by touch alone

Stereognosis/Fine touch

4

Ability to recognize numbers or letters drawn on the skin

Graphesthesia

5

Ability to distinguish stimulation by one or two points applied on the skin

Two-point sense

6

Involves stimuli applied to subcutaneous structure firmly pressing on the skin with blunt object and by squeezing subcutaneous structures

Pressure/Deep touch

7

Temperature variations

Hot & Cold

8

Type of pain that is sharp, pricking and well localized

Fast pain

9

Type of pain that is dull, burning type and diffuse

Slow pain

10

Awareness of the position of parts of the body; tested by passively moving a limb or one of its parts to a certain position and having the subject move the opposite limb to the same position.

Position/Posture sense

11

Awareness of active or passive movements of parts of the body; tested by passively flexing and extending individual fingers and toes , hand and foot, forearm and leg etc. with eyes closed, the subject should be able to recognize the direction, speed and range of the movement.

Motion sense

12

Receptor for touch, pressure and proprioception

Mechanoreceptors

13

Receptors for pain

Nocireceptors

14

Receptors for warm/cold

Thermoceptors

15

General sensation receptors for Touch

Meissner's corpuscle, Merkel's disc, Hair follicle ending & Golgi mazzoni "mmHg"

16

General sensation receptors for Pressure

Pacinian corpuscle

17

General sensation receptors for Pain

Free nerve endings

18

General sensation receptors for Cold temp

Krause end bulb

19

General sensation receptors for Hot

Ruffini's corpuscle

20

General sensation receptors for Proprioception

Tendon & Muscle spindles

21

Area of the skin supplied by the somatosensory fibers from a single spinal nerve; useful in localizing the levels of lesion.

Dermatomes

22

Dermatome: C2

Back of the head

23

Dermatome: C5

Tip of Shoulder

24

Dermatome: C6

Thumb

25

Dermatome: C7

Middle finger

26

Dermatome: C8

Small finger

27

Dermatome: T4-T5

Nipple

28

Dermatome: T10

Umbilicus

29

Dermatome: L1

Inguinal