Chapter 8.4 - 8.5

Question 1

What is a prolonged unconscious state, sometimes irreversible, that usually comes from damage to the nervous system?

Answer 1

Coma

Question 2

What is the transparent, jelly-like substance between the lens and rear of the eye?

Answer 2

Vitreous humor

Question 3

What is degeneration and inflammation of the nerves?

Answer 3

Neuritis

Question 4

What category of senses do pressure and temperature changes (primarily skin senses) fall under?

Answer 4

Somatic senses

Question 5

What is a minor brain injury?

Answer 5

Concussion

Question 6

What is the leading cause of death throughout the world?

Answer 6

Stroke

Question 7

What is the ability to see only near objects clearly?

Answer 7

Myopia (Nearsightedness)

Question 8

What type of sleep do dreams usually occur during?

Answer 8

REM sleep

Question 9

What is the pathway through which microbes travel from the throat to the middle ear during an ear infection?

Answer 9

Eustachian tube

Question 10

What is a condition caused by a pinching of the sciatic nerve and is felt as pain in the lower back and thigh?

Answer 10

Sciatica

Question 11

What is the term for farsightedness occurring because of age?

Answer 11

Presbyopia

Question 12

What is the transparent portion of the eye that receives the light that enters the eye?

Answer 12

Cornea

Question 13

What type of receptors respond to temperature changes?

Answer 13

Thermoreceptors

Question 14

What is the clear fluid between the iris and lens?

Answer 14

Aqueous humor

Question 15

What is the tough, white layer of outer tissue that protects the interior of the eye?

Answer 15

Sclera

Question 16

What chamber of the ear contains the malleus, stapes, and incus?

Answer 16

Middle ear

Question 17

What is the focusing problem caused by an asymmetrically curved cornea?

Answer 17

Astigmatism

Question 18

What is the condition in which the spinal nerves protrude from the spinal cord in an injured neck?

Answer 18

Whiplash

Question 19

What part of the eye focuses the rays of light passing through?

Answer 19

Lens

Question 20

What part of the ear is open to the outside of the body?

Answer 20

Outer ear

Question 21

What type of cell in the retina is responsible for color vision?

Answer 21

Cones

Question 22

What common cause of blindness is a condition in which the pressure of fluid inside the eye is much too high?

Answer 22

Glaucoma

Question 23

What is the region of the light-sensitive layer of the eye that produces the clearest vision?

Answer 23

Fovea

Question 24

Where are tears produced?

Answer 24

Lacrimal glands (tear glands)

Question 25

What sensory receptors are responsible for the sensations of touch and pressure?

Answer 25

Mechanoreceptors

Question 26

What part of the ear is the actual organ for hearing?

Answer 26

Inner ear

Question 27

What is the term for the protective casing for the eye?

Answer 27

Socket (or orbit)

Question 28

What are the two types of cells inside the light-sensitive layer of the retina?

Answer 28

Rods and Cones

Question 29

What are the sensors that obtain and relay information to the spinal cord?

Answer 29

Sensory receptors

Question 30

What type of sleep do dreams occur during?

Answer 30

REM sleep

Question 31

What is the term for people who cannot distinguish one or more primary colors?

Answer 31

Colorblind

Question 32

What connects the nose's sensory receptors to the brain?

Answer 32

Olfactory nerve

Question 33

What set of muscles is responsible for moving the eye?

Answer 33

Extrinsic muscles

Question 34

What is a bare dendrite that reacts to a certain type of strong stimulus?

Answer 34

Pain receptor

Question 35

What delicate and most important part of the eye is the innermost layer of the eye?

Answer 35

Retina

Question 36

What is the substance inside rod cells that absorbs light?

Answer 36

Rhodopsin