Chapter 10 Flashcards

(41 cards)

1
Q

What detect changes in the environment and stimulate neurons to send nerve impulses to the CNS for processing?

A

sensory receptors

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2
Q

What senses are widely distributed and structurally simple, touch pressure, temperature and pain?

A

general senses

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3
Q

What senses have complex specialized sensory organs in the head, vision, hearing, smell, taste, balance?

A

special senses

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4
Q

What are the types of general receptors?

A

chemoreceptors, pain, thermoreceptors, mechanoreceptors, and photoreceptors

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5
Q

Receptors sensitive to changes in chemical concentration

A

chemoreceptors

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6
Q

receptors that detect tissue damage

A

pain

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7
Q

responds to temperature differences

A

thermoreceptors

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8
Q

responds to changes in pressure or movement

A

mechanoreceptors

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9
Q

respond to light; found in the eye

A

photoreceptors

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10
Q

Senses of body position, location in space, are associated with skeletal muscles

A

proprioception

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11
Q

what are receptors for?

A

touch

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12
Q

pressure senses, sense

A

deformation or displacement of tissues

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13
Q

These consist of free nerve endings that are stimulated when tissues are damaged

A

pain receptors

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14
Q

Masses of epithelium in roof of the nasal cavity contain olfactory receptros

A

olfactory organs

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15
Q

smell receptors are chemoreceptors, inhaled odorants stimulate particular groups of olfactory receptors, to provide discrimination of smell receptors

A

olfactory receptors

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16
Q

spherical organs of taste, each contain 50-100 taste cellls

A

taste buds

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17
Q

functions as chemoreceptors, replaced every 10 days

A

taste cells (gustatory cells)

18
Q

List the 5 types of taste cells

A

sweet, sour, salty, bitter, and umami (delicious and savory)

19
Q

What are the 3 portions of the external ear?

A

auricle (pinna), external acoustic meatus (external auditory canal), tympanic membrane (eardrum)

20
Q

What collect sounds?

A

auricle (pinna)

21
Q

what is a s shaped tube that transports sound toward the ear drum?

A

external acoustic meatus

22
Q

this lies at the end of the external acoustic meatus and vibrates sound waves

A

tympanic membrane

23
Q

The middle ear houses 3 tiny bones called

A

auditory ossicles: malleus, incus, and stapes

24
Q

what are the two types of sense of equilibrium

A

static and dynamic

25
hearing receptors cells, possess hairs that extend into the cochlear duct
hair cells
26
what is found in the cochlea?
hearing receptor and spiral organelles
27
help to maintain the position of the head, posture and balance when the head and body are still
static equilibrium
28
help maintain balance when the head and body suddenly move or rotate, sensed by 3 semicircular canals
dynamic equilibrium
29
area of the inner ear between the tympanic cavity and posterior to the cochlea that contains the otolith organs.
vestibule
30
is transparent and help focus light ray, in the outer layer of the eye
cornea
31
the white of the eye and part of the outer eye
sclera,
32
what forms a ring around the front of the eye and can change the shape of the lens to focus, is located in the middle of the eye
ciliary body
33
colored portion that surrounds the pupil, in the middle of the eye
iris
34
are modified neurons which are the visual receptor cells
photoceptors
35
key bridge between the light that enters your eyes and the images you see.
retina
36
this provides sharp images in bright light, color vison and three types to sense different color
cones
37
more sensitive to light and function in dim light, provide black and white vison, more of these than cones in the retina
rods
38
fluid that fill the eye
humors
39
fills the space between the cornea and lens
aqueous humor
40
fills space between lens and retina
vitreous humor
41
focusing causes light rays to bend
refraction