chapter 12 and 13

Question 0

cranial nerves

Answer 0

nerves that arise from the brain

Question 1

neuroplasty

Answer 1

surgical repair of the nerves

Question 2

cerebellum

Answer 2

second largest portion of the brain located beneath posterior portion of the cerebrum aids in coordinating voluntary part of body movements & maintaining balance and equilibrium

Question 3

hypothalamus

Answer 3

portion of diencephalon that lies just below thalamus, controls body tempature, appetite, sleep, sexual desire & emotions such as fear also releases hormones from the pituitary gland & regulates parasympathetic & sympathetic nervous systems.

Question 4

Dura Mater

Answer 4

term means tough mother; is fibrous outermost meanings layers that forms a tough protective layer

Question 5

pia mater

Answer 5

term means soft mother; this thin innermost meninges layer is applied directly to the surface of brain

Question 6

Arachnoid layer

Answer 6

Delicate middle layer of meninges

Question 7

Axon

Answer 7

Single projection of a neuron

Question 8

Myelin

Answer 8

Tissue that wraps around many of nerve fibers ; composed of fatty material and functions as isolated

Question 9

Gyri

Answer 9

Convulted, elevated portions of cerebral cortex; they are separated by fissures & sulci

Question 10

Sulci

Answer 10

Also called fissures; grooves that separate gyri of cerebral cortex; singular is sulcus

Question 11

ventricle

Answer 11

brain has four interconnected cavities called ventricles

Question 12

Synapse

Answer 12

Point at which axon of the neuron meets dendrite of next neuron

Question 13

Stroke

Answer 13

Developed of an infraction due to loss in blood supply to an area of the brain

Question 14

Bell’s Palsy

Answer 14

One sided facial paralysis due to inflammation of facial nerve, probably viral in nature

Question 15

Brain stem

Answer 15

This area of the brain has three components: medulla oblongata, pons, and mid brain… Brain stem is pathway for impulses to be conducted between brain and spinal cord-also controls respiration, heart rate, and bold pressure

Question 16

Coma

Answer 16

Profound unconsciousness resulting from illness and injury

Question 17

Diplopia

Answer 17

Double vision

Question 18

Ophthalmoscope

Answer 18

Instrument to view inside of eye

Question 19

Blepharoplasty

Answer 19

Surgical repair of the eyelid

Question 20

Audiogram

Answer 20

Chart that shows faintest sounds patients can hear during auditory testing

Question 21

Lacrimal apparatus

Answer 21

Consists of lacrimal gland, lacrimal ducts and nasolacrimal ducts

Question 22

Cornea

Answer 22

Portion of sclera that is clear and transparent allows light to enter interior of eye and Aldo plays role in bending light

Question 23

Rods

Answer 23

Sensory receptors of retina that are active in dim light and do not perceive color

Question 24

Lens

Answer 24

Transparent structure behind pupil and iris; functions to bend light rays so they land on the retina

Question 25

Auditory tubes

Answer 25

Another name for Eustachian tubes- connecting middle ear and pharynx

Question 26

Cochlea

Answer 26

Portion of labyrinth associated with hearing; is rolled in shape of snail shell

Question 27

Nystagmus

Answer 27

Jerky appearing involuntary eye movements

Question 28

Auricle

Answer 28

Pertaining to the ear