Chapter 10

Question 0

Name two types of temp receptors and describe

Answer 0

Warm receptors- most sensitive to temp above 77 and unresponsive above 113
Cold receptors- most sensitive to temp between 50-68

Question 1

What’s the difference between meissners corpuscles and pacinian corpuscles

Answer 1

Meissners- receptors for light touch

Pacinian- receptors for heavy pressure

Question 2

Only part that can’t feel pain?

Answer 2

Brain

Question 3

Only receptor that provides sensation

Answer 3

Pain receptors are only receptors in viscera that provide sensation

Question 4

When visceral pain feels as if it is coming from some part of body other than part being stimulated

Answer 4

Referred pain

Question 5

Why does referred pain occur

Answer 5

Sensory impulses from skin and viscera travel on common nerve pathways

Question 6

What are the two pain nerve fibers and how are they different

Answer 6

Acute pain fibers- conduct impulses rapidly, associated w sharp pain, and sensed as coming only from skin
Chronic pain fibers- conduct impulses slowly, produce a dull, aching pain, and is felt in deeper tissues

Question 7

What makes a person aware of pain

Answer 7

When pain impulses reach thalamus

Question 8

What is the function of enkephalins and endorphins

Answer 8

Released in response to extreme pain and provide natural pain control

Question 9

Explain what happens to odor molecules before we smell them

Answer 9

Odor molecules enter nose as gases but must dissolve in watery fluids that surround the cilia

Question 10

3 places taste buds are located

Answer 10

Surface of tongue, roof of mouth, and walls of throat

Question 11

Name primary sensations

Answer 11

Sweet, sour, salty, bitter

Question 12

Outer, funnel-like structure

Answer 12

Auricle

Question 13

Function of auricle

Answer 13

Helps collect sound waves and directs them into auditory canal

Question 14

Eardrum

Answer 14

Tympanic membrane

Question 15

3 tiny bones which transmit vibrations to inner ear

Answer 15

Ossicles

Question 16

Opening in the wall of the tympanic cavity which leads to inner ear

Answer 16

Oval window

Question 17

Function of the auditory tube

Answer 17

Eustachian tube connects middle ear to throat and helps maintain air pressure on both sides of ear drum

Question 18

Complex system of chambers and tubes composed of bony and membrane labyrinth

Answer 18

Labyrinth

Question 19

3 canals that provide us with a sense of equilibrium

Answer 19

Semicircular canals

Question 20

Spiral shaped canal which functions in hearing

Answer 20

Cochlea

Question 21

Bony chamber located between semicircular canals and cochlea

Answer 21

Vestibule

Question 22

Contains the hearing receptors stimulated by vibrations in the fluids of inner ear

Answer 22

Organ of corti

Question 23

Nature of sound

Answer 23

Air at sea level, temp 77, sound travels 775 mph.

Speed of sound is much slower than speed of light

Question 24

State the 3 characteristics of sound

Answer 24

Loudness
Pitch
Quality

Question 25

What’s the difference between static and dynamic equilibrium

Answer 25

Static- maintains stability of head and body when motionless
Dynamic- maintains stability when in motion

Question 26

What does smell and taste adaptation mean

Answer 26

Smell or taste is really strong at first, but you get used to it