Unit 9 SENSES

Question 1

SPECIAL SENSES (5)

Answer 1

Olfaction - Smelling, product of nose 
Gustation - Taste, tongue 
Equilibruim - Balance, Controlled by factors in your ears
Hearing - Ears
Vision - Eyes

Question 2

SENSATION
PERCEPTION
ADAPTION

Answer 2

S - You actually sensing something
P - If you are aware of it or not
A - Decreased sensation via repeated stimulation

Question 3

TYPES OF NOCICEPTORS (PAIN) (2)

Answer 3

Fast - Travels through Myelinated Axons (Cuts, Injections, Sharp)

Slow - Visceral (Organs) (Burning, Aching, Dull)

Question 4

REFERRED PAIN

Answer 4

Pain arising in a different area then the source

Heart Attack

Question 5

TASTE RECEPTORS ON THE TONGUE

Answer 5

• Sour
• Bitter
• Salty
• Sweet
• Umami (Protein flavor)
• Water

Question 6

LACRIMAL GLANDS
&
NASOLACRIMAL

Answer 6

LG - The outside of your eye (Border of your Eye)

NC - Runs down your nose into your nasal cavity

Question 7

LAYERS OF THE EYE

Answer 7

Sclera (Protection)
Chorid Vascular Tissue
Retina (Inner layer, Light hits)

Question 8

CHAMBERS OF THE EYE

Answer 8

Aqueous Humor (Front)
Vitreous Humor (Back)

Question 9

IRIS
PUPIL
CORNEA
LENS

Answer 9

I - Colored part
P - Dark part
C - (Protector) over the eye
L - Behind the pupil

Question 10

EXPLAIN BLIND SPOT IN VISION

Answer 10

Light that hits the optic nerve

Attached to the back of eye

Question 11

CONES & RODS

Answer 11

Cones - Color, Sharp vision, Central vision

Rods - Black & White (Night vision), Speed (Fast at getting objects), Peripheral

Question 12

AUDITORY OSSICLES OF THE MIDDLE EAR

BONE

Answer 12

• Malleus
• Incus
• Stapes

Question 13

STRUCTURE OF INNER EAR THAT SENSES 
               ROTATIONAL MOTION 
                               &
    GRAVITY & LINEAR ACCELERATION
                               &
                    SOUND WAVES

Answer 13

Semicircular canals (Balance Controlled)

Vestibule

Cochlea

Question 14

HOW SO HAIR CELLS FUNCTION

Answer 14

Outer hair cells amplify low-level sound that enters the cochlea

Inner cells then transform it to electrical signals

Question 15

STEPS OF HEARING

Answer 15

1 - Sound waves arrive @ Tympanic Membrane
2 - Movement from TM causes displacement to the ear bones
3 - Movement of stapes causes pressure waves in the Perilymph
4 - Pressure waves distort the basilar (Travel like ocean waves)
5 - Vibration of bas. Membrane causes hair cell to vibrate
6 - Auditory nerve moves signals to the brain

Question 16

2 MAJOR TYPES OF DEAFNESS

Answer 16

Conductive (When something is blocking the ear canal)

Sensorial (Nerve damage)(CN3)

Question 17

ANALGESIC
&
ANESTHESIA

Answer 17

Anal - Drugs that are designed to relieve pain w/out causing the loss of consciousness

Anesthesia - Temporary loss of sensation or awareness for medical purposes

Question 18

GENERAL SENSES (6)

Answer 18

Pain - Nociceptors 
Tough - Tactile
Pressure - Baroreceptors 
Vibration - 
Temperature - 
Proprioception - Body is in space