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Anatomy & Physiology I > Chapter 10 > Flashcards

Chapter 10 Flashcards

1
Q

hemoreceptors

A
  • senses changes in chemicals (olfactory receptors)
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2
Q

pain receptors(nociceptors)-

A

sensing pain

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3
Q

Thermoreceptors-

A

senses changes in temperature

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4
Q

Mechanoreceptors-

A

sensing movement

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5
Q

photoreceptors-

A

senses light

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6
Q

sensory adaptation

A
  • the ability of the nervous system to become less responsive to a maintained stimulus
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7
Q

Hypoxia

A

lack of oxygen

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8
Q

Ischemia

A

lack of blood flow

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9
Q

Visceral pain

A

(internal organs)

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10
Q

experiencing pain in funny locations is known as

A

Referred Pain

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11
Q

acute pain fibers are myelinated or unmyelinated?

A

myelinated

-makes signal go through faster

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12
Q

chronic pain fibers are unmyelinated or myelinated ?

A

-unmeyelinted

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13
Q

awareness of pain arises when pain impulses reach the

A

thalamus

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14
Q

pain intensity, locates the pain source and mediates emotional and motor response to pain

A

pain intensity, locates the pain source and mediates emotional and motor response to pain

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15
Q

What are the three receptors for the sense of touch and pressure ?

A
  • free nerve endings
  • tactile (Meissner’s) corpuscles
  • Lamellated (Pacinian) corpuscles
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16
Q

Free nerve endings are located…

A

In epithelial tissues and are responsible for itching sensation

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17
Q

Tactile Corpuscles

A

Small oval masses of flattened connected tissue cells and connective tissue sheaths.

18
Q

Where are tactile corpuscles located ?

A

In hairless areas of the skin, such as the lips, fingertips, poems, songs, nipples, and external genital organs.

19
Q

Lamellated Pacinian corpuscles

A

Common in the deeper dermal and subcutaneous tissues and in muscle tendons and joints ligaments.

20
Q

Lamellated corpuscles respond to

A

heavy pressure and are so scared of the sensation of depression

21
Q

Temperature senses

A

-warm and cold receptors

Free nerve endings

22
Q

Dual sensation

A

Sharp, pricking pain, followed shortly by A dull aching one.

23
Q

Serotonin, Enkephalins

A

Inhibiting substances released in the posterior horn

24
Q

Enkephalins can suppress…

A

Acute and chronic pain impulses and the thus can relieve severe pain

25
Q

Endorphins

A

Are another group of neuropeptides with pain suppressing, morphine like action

26
Q

Name the special senses and their respective organs

A
  • smell…olfactory organs
  • taste…taste buds
  • hearing/equilibrium…ear
  • sight…eye
27
Q

olfactory receptors and tastebuds are what type of receptors?

A

chemoreceptors

28
Q

tastebuds

A

are the specialized organs of taste

29
Q

where are tastebuds located?

A

surface of the tongue with elevations called papillae

30
Q

what are the 5 taste bud types/ Taste sensations?

A
  • sweet
  • sour
  • salty
  • bitter
  • Umami
31
Q

what bridges the eardrum to the inner ear?

A

the auditory ossicles

32
Q

what does vibrations to the stapes cause?

A

since it is attached to the oval window that causes the fluid in the inner ear, which stimulates hearing receptors

33
Q

where does the auditory tube connect to?

A

the middle ear

34
Q

what does the auditory tube help do?

A

maintain equal pressure on both sides of the eardrum

35
Q

membranous labyrinth

A

inside of the osseous labyrinth

36
Q

perilymph

A

fluid in between the membranous and osseous labyrinth

37
Q

endolymph

A

fluid contained inside the membranous labyrinth

38
Q

upper part of the cochlea

A

scala vestibule

39
Q

lower part of the cochlea

A

scala tympani

40
Q

the part of membranous labyrinth within the cochlea is called the…

A

cochlear duct

41
Q

vestibular membrane

A
  • seperates the cochlear duct

Anatomy & Physiology I (12 decks)

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