Sense Organs Flashcards

1
Q

What is the function of sensory receptors

A

detect changes in the environment and covert them into electrical signals that can be processed by the nervous system

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2
Q

Describe a neuromast organ

A

small epithelial receptor organ

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3
Q

What is a lateral line

A

a visible line along the side of a fish consisting of a series of sense organs which detect pressure and vibration

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4
Q

What does a labyrinth usually consist of

A

cochleae, vestibule, and three semicircular canals

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5
Q

What are the functions of the labyrinth

A

help generate reflexes so people can see clearly when the head is moving

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6
Q

how does the labyrinth function in dynamic equilibrium

A

maintain proper head position in response to rotational motion

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7
Q

how does the labyrinth function in static equilibrium

A

maintenance of proper head position in response to change in linear motion

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8
Q

what is the tympanic membrane

A

ear drum- separates the middle and outer ear

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9
Q

What is the stapes

A

one of the three small bones inside the middle ear

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10
Q

What are the three bones inside the middle ear in mammals

A

the stapes, malleus, and incus

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11
Q

describe how pressure becomes sound

A

vibrations enter the ear which will get amplified by the middle ear and get sent to the inner ear that is filled with fluid

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12
Q

what do pit receptors detect

A

touch temp and pain

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13
Q

what are labial pits and which snakes have them

A

three or more small pits in the upper and sometimes lower lip- pythons and boas

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14
Q

what are the two types of photo receptors

A

rods and cones

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15
Q

What is the ampulla

A

three tubuler structures that connect to the utricle

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16
Q

What is the crista

A

senses that detect acceleration and deceleration

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17
Q

what is the macula

A

senses acceleration

18
Q

What is the retina

A

light sensitivity layer of the tissue at the back of the eye

19
Q

what is the choroid

A

middle layer of tissue on the wall of the eye

20
Q

what is the sclera

A

white part of the eye

21
Q

what is the iris

A

colored part of the eye

22
Q

what is the pupil

A

an opening at the center of the iris where light passes

23
Q

what is the cornea

A

outer most clear layer of the eye

24
Q

what is the lens

A

clear elliptical structure that sits behind the pupil

25
Q

what are the rods

A

photoreceptors black and white

26
Q

what are the cones

A

photoreceptors color

27
Q

what is the fovea

A

sm depression within the neurosensory retina where visual activity is the highest

28
Q

What is accommodation

A

the eye’s ability to adjust its focus to see objects clearly

29
Q

what are the two types of chemoreceptors

A

direct and distant

30
Q

where are the receptors for olfaction located

A

small regions within the superior nasal cavity

31
Q

what are basal cells

A

source of new olfaction receptor cells

32
Q

what are supporting cells

A

produce mucus

33
Q

what are olfactory receptor cells

A

sight of sensory transduction

34
Q

structure of vomeronasal organ in amphibians

A

recessed area of nasal cavity

35
Q

structure of vomeronasal organ in reptiles

A

separate pairs of pits

36
Q

structure of vomeronasal organ in mammals

A

well developed turbine

37
Q

what do taste buds detect

A

sweet, sour, bitter, salty, and umami

38
Q

what cells make up taste buds

A

epithelial cells

39
Q

what are naked nerve endings and what do they detect

A

free nerve ending and pain, temp and cold

40
Q

what are encapsulated endings

A

nerves with a capsule