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anph 220 (anatomy) > Unit 7: Sensory System > Flashcards

Unit 7: Sensory System Flashcards

1
Q

SENSORY RECEPTORS combine with m_ and t_ to form SENSE ORGANS

A

muscles and tissue

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2
Q

Most SENSORY RECEPTORS consist of specialized _ cells

A

NERVE CELLS (or nerve endings)

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3
Q

SENSORY RECEPTORS transmit info about (TLI)
T_ of stimulus
L_ of stimulus
I_ of stimulus

A

type
location
intensity

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4
Q

5 types of sensory receptors.
1. CHEMOreceptors respond to _ in the body

A

Chemoreceptors respond to ODORS in body

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5
Q

5 types of sensory receptors.
2. MECHANOreceptors detect p_, STRETCH, or VIBRATION

A

PRESSURE, stretch or vibration

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6
Q

5 types of sensory receptors.
3. THERMOreceptors detect _ changes

A

temperature

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7
Q

5 types of sensory receptors.
4. NOCIceptors detect _

A

pain

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8
Q

5 types of sensory receptors.
5 PHOTOreceptors detect _

A

light

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9
Q

General senses include PAIN, PRESSURE, TOUCH, STRETCH & TEMP

General senses involve receptors widely distributed in _, _, _

A

muscles, tendons, skin, joings

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10
Q

NOCICEPTORS (pain) are found in s_ and m_ membranes, as well as EVERY ORGAN

NOCICEPTORS use fast and slow _ fibers

A

SKIN

MUCOUS membranes

fast and slow PAIN fibers

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11
Q

Fast pain fibers are found in _ and m_ membranes

A

SKIN & MUCOUS MEMBRANES (sharp pain)

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12
Q

Slow pain fibers are found deep in _

A

body organs (dull pain)

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13
Q

REFERRED pain is when pain is felt in a _ part of the body

A

different

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14
Q

True source of pain can be difficult to identify b/c sensory impulses from DIFFERENT areas travel to brain over _ pathway

A

same

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15
Q

Special senses include (SHEV)
s_
h_
e_
v)

A

smell
hearing
equllibrium
vision

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16
Q

GUSTATION = sense of _

A

taste

17
Q

Taste buds for around the P_ on the tongue. INVOLVES facial, vagus, glossopharyngeal nerve

A

PAPILLAE (protusions)

18
Q

OLFACTION = sense of _

Olfactory receptors found in e_ tissue that lines the roof of n_ cavity

Involves NERVE1 (olfactory)

A

Smell

ephithileal tissue

nasal cavity

19
Q

Structure of OUTER EAR

  1. The visible part of the outer ear is the a___ (or pinna)
  2. The opening of the auditory canal is the a_ MEATUS (or external auditory)
  3. The part that lines the canal and produces cerumen is the c_ g_
A
  1. AURICLE (outer part)
  2. ACOUSTIC MEATUS (or external auditory)
  3. CERUMEN gland
20
Q

Structure of MIDDLE EAR

  1. The t_ membrane (eardrum) separates outer ear from middle ear
  2. The MALLEUS, INCUS, and STAPES are the auditory bones that connect the e_ to the o_window
  3. Auditory or EUSTACHIAN TUBE is the passage from mid ear to NASApharynx to equalize p_ on both sides of tympanic membrain
A
  1. TYPANIC MEMBRANE (eardrum)
  2. Connect EARDRUM to OVAL WINDOW
  3. equalize pressure
21
Q

Structure of INNER EAR

  1. Canals and vestibules are FLUID-filled structures that help maintain e_ (or balance)
  2. Fluide filled structure for hearing (including Corti organ) is called the C_
A
  1. equilibrium (or balance)
  2. Cochlea
22
Q

Semiscircular canals detect d_ equilabrium ( head movement)

A

DYNAMIC equilabrium

23
Q

VESTIBULES detect S_ equalibrium (head not moving)

A

STATIC equilibrium

24
Q

palPEbrae is another name for _

A

eyelids

25
Q

ConJUNCtiva is a transparent mucous membrane that lines the _ surface of the eye and the a_ surface of the eyeball.

CONJUNCTIVA keeps eyeball m_

A

lines INNER surface of eyeLID
ANTERIOR surface of eyeBALL

keeps eyeball MOIST

26
Q

Tarsal glands are found at the e_ of the eye. THey secrete _ to slow evaporation of tears and form seal when eyes closed

A

at EDGE of eye

secrete OIL

27
Q

LACRIMAL PUNCTUM are p_ found at the END of the lacrimal canal (DRAIN TEARS)

A

PORES to train tears

28
Q

LACRIMAL GLANDS are found _ the eye. They secrete _.

A

found ABOVE eye

secrete TEARS

29
Q

NASOlacrimal duct is the passageway that carries _ into the n_ cavity

A

TEARS into NASAL cavity

30
Q

1 = FIBROUS outer layer includes the white of the eye (called the s_) which contains PAIN RECEPTORS

3 TISSUE LAYERS OF EYE

A

SCHLERA

31
Q

2 = VASCULAR Middle Layer which includes

3 TISSUE LAYERS OF EYE

a) the I_ (ring of muscle to dilate pupil)
b) CILIARY B_
c) CHO_ - vascular layer

A

Iris

Ciliary BODY

CHOROID

32
Q

The OPTIC DISC OF RETINA
-the point where NERVE FIBRES leave the retina and converge to become the o_ n_

also where blood vessels enter/leave eye

A

optic nerve

33
Q

ANTERIOR cavity of eye is filled with a_ humour

and

is between the l_ and the c_

A

aqueous humor

lens and cornea

34
Q

LENS of EYE is a disc of t_ that changes s_ for NEAR & FAR vision

A

tissue

changes SHAPE

35
Q

POSTERIOR cavity is filled with v- humour and is b_ the lens

A

VITREOUS humor

BEHIND the lens

36
Q

PROCESS OF VISION

  1. LIGHT focuses on R_ and produces an image that is u__
  2. R_ and C_ convert image to NERVE IMPULSES
  3. Impulses are transmitted to b_
A
  1. retina
    upside down
  2. rods and cones
  3. brain
37
Q

The bending of light rays so they focus precisely on retina is called _

A

REFRACTION

anph 220 (anatomy) (20 decks)

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