exam 3

Question 1

Frontalis

Answer 1

Raises eyebrows and wrinkles forehead

Question 2

Orbicularis oculi

Answer 2

Closes eye

Question 3

Orbicularis oris

Answer 3

Closes lips; kissing and whistling

Question 4

Sternocleidomastoid

Answer 4

Flexes, tilts, and rotates head

Question 5

Zygomaticus

Answer 5

Raises corners of mouth; smiling

Question 6

Masseter

Answer 6

Elevates (closes) and protracts jaw, as when chewing

Question 7

Trapezius

Answer 7

Upper back

Question 8

Pectoralis major

Answer 8

Chest

Question 9

Rectus abdominis

Answer 9

Abs

Question 10

Deltoid

Answer 10

Abducts, flexes, and rotates arm

Question 11

Triceps brachii

Answer 11

Extends forearm

Question 12

Biceps brachii

Answer 12

Flexes forearm

Question 13

Gluteus maximus

Answer 13

Extends, abducts, and rotates thigh

Question 13

Gracilis

Answer 13

Inner thighs

Question 14

Vastus lateralis

Answer 14

Extends leg

Question 14

Sartorius

Answer 14

Crosses the leg

Question 15

Vastus medialis

Answer 15

Outer quad

Question 16

Biceps femoris

Answer 16

Extends thigh and flexes leg

Question 17

Rectus femoris

Answer 17

Back thigh

Question 18

Gastrocnemius

Answer 18

Plantar flexion of the foot; flexes leg
Calf

Question 19

skeletal muscle

Answer 19

*allows voluntary movement
*attached to bones

Question 20

cardiac muscle

Answer 20

*heart
*heart contractions

Question 21

smooth muscle

Answer 21

*found surrounding most hollow organs
*involuntary control of body openings

Question 22

supporting cells

Answer 22

protect, support, and insulate the neurons

Question 23

neurons

Answer 23

large conduction cells of nervous tissue

Question 24

which ones are multinucleated skeletal,cardiac, smooth

Answer 24

skeletal

Question 25

which ones are intercalated disk skeletal,cardiac, smooth

Answer 25

cardiac

Question 26

which ones are involuntary skeletal,cardiac, smooth

Answer 26

cardiac and smooth

Question 27

which ones are striated skeletal,cardiac, smooth

Answer 27

skeletal and cardiac

Question 28

which ones are branched skeletal,cardiac, smooth

Answer 28

cardiac

Question 29

latent period

Answer 29

before muscle contraction

Question 30

contraction

Answer 30

during contraction

Question 31

4 main areas of the brain

Answer 31

Cerebral, diencephalon, brain stem, and cerebellum

Question 32

What two parts of the cerebral have

Answer 32

Gyrus,sulcus

Question 33

What connect the left and right brain

Answer 33

Corpus callosum

Question 34

4 part of the cerebrum

Answer 34

Frontal, parietal,temporal, occipital

Question 35

Function of the cerebral

Answer 35

Higher level of coordination

Question 36

Functions of Diencephalon

Answer 36

Coordinates and controls signals between the brainstem and the cerebral hemispheres

Question 37

Function of Brain stem

Answer 37

(Midbrain, Pons and Medulla) oblongata; controls basic body functions, respiration and heart

Question 38

Function of Cerebellum

Answer 38

coordinates muscle movement and muscle control; center of the cerebellum white matter in "tree " or "fern" shape

Question 39

Gray matter

Answer 39

Outer brain cortex is grey matter, mainly dendrites and neuron cel

Question 40

White matter

Answer 40

Inner brain is white matter, mainly myelinated axons

Question 41

4 protective mechanisms for the brain

Answer 41

Skull (bone), CSF (fluid), Membranes (Meninges) and blood brain barrier

Question 42

3 meninges

Answer 42

Pia, Arachnoid, Dura

Question 43

Protective mechanisms for the spinal cord

Answer 43

Vertebra(bone); CSF (fluid) and Membranes (meninges)

Question 44

Spinal Nerves

Answer 44

all contain motor and sensory components, Sensory nerve is the dorsal root, Motor nerve is the ventral root

Question 45

They form nerve bundles called plexuses at the

Answer 45

Cervical, Brachial, Lumbar and Sacral levels.

Question 46

spinal cord forms nerves that pass through the openings in the sacrum

Answer 46

Cauda Equina, Fillum terminale.

Question 47

Olfactory Nerve

Answer 47

sensory for sense of smell; it originates on the cerebrum ONLY

Question 48

CN II: Optic

Answer 48

sense of vision

Question 49

CN V: Trigeminal

Answer 49

senstion of pain , touch and temperature; motor for chewing

Question 50

CN VIII: Vestibulocochlear

Answer 50

hearing and balance

Question 51

CN IX: Glossopharyngeal

Answer 51

taste sensation; motor saliva secretion

Question 52

Reflex arc:

Answer 52

receptor, sensory neuron, integration center, motor neuron, and effector

Question 53

Know why we have each of the below reflexes and what they mean or what nerve it is testing

Answer 53

Patellar Reflex- knee jerk, femoral nerve Corneal Reflex- automatic blinking Babinski Reflex- spinal damage Pupillary Light Reflex- pupils dilate

Question 54

Eye Model

Answer 54

Iris, Pupil ,Cornea ,Optic Disc

Question 55

Ear Model

Answer 55

External auditory meatus, Tympanic membrane, Vestibulocochlear Nerve (CN VIII as it leaves the ear), Cochlea

Question 56

What is a motor unit

Answer 56

motor neuron and all the myofibers it innervates