Practical #2

Question 1

Orbicularis oculi

Answer 1

closes eye

Question 2

orbicularis oris

Answer 2

closes lips

Question 3

masseter

Answer 3

closes jaw

Question 4

temporalis

Answer 4

closes jaw

Question 5

sternocleidomastoid

Answer 5

flexes and laterally rotates head

Question 6

Pectoralis major

Answer 6

flexes, adducts, and medially rotates the arm

Question 7

What cat muscle of the upper limb is not present in humans?

Answer 7

epitrochlearis

Question 8

Which cat muscle of the hip region is not present in humans?

Answer 8

Caudofemoralis

Question 9

What are the four muscles that make up the quadriceps femoris?

Answer 9

rectus femoris, vastus medialis vastus lateralis, and vastus intermedius

Question 10

What are the three muscles that make up the hamstrings?

Answer 10

semimembranous, semitendinous, and biceps femoris

Question 11

What are the two muscles that insert on the calcaneus by way of the calcaneal tendon?

Answer 11

grastrocnemius and soleus

Question 12

Trapezius

Answer 12

elevates, retracts, and depresses scapula (depending on active fibers)

Question 13

Deltoid

Answer 13

Abducts arm, flexes, extends and rotates arm (depending on active fibers)

Question 14

Rhomboids

Answer 14

retracts scapula

Question 15

what are rhomboids called in cats? humans?

Answer 15

Cats: rhomboiedus
Humans: Rhomoids major and minor

Question 16

Latissimus dorsi

Answer 16

extends, adducts, and medially rotates arm

Question 17

serratus anterior

Answer 17

protracts scapula

Question 18

what is the serratus anterior called in humans? cats?

Answer 18

Humans: serratus anterior
cats: serratus ventralis

Question 19

rectus abdominis

Answer 19

flexes vertebral column and compresses abdomen

Question 20

external oblique

Answer 20

rotates and laterally flexes vertebral column and compresses abdomen

Question 21

internal oblique

Answer 21

as for external oblique

Question 22

transversus abdominis

Answer 22

compresses abdomen

Question 23

illiopsas

Answer 23

flexes thigh (femur)

Question 24

biceps brachii

Answer 24

flexes and supinates forearm

Question 25

brachialis

Answer 25

flexes forearm

Question 26

triceps brachii

Answer 26

extends forearm

Question 27

gluteus maximus

Answer 27

extends thigh

Question 28

Rectus femoris

Answer 28

extends leg and flexes thigh

Question 29

vastus lateralis, medialis, and intermedius

Answer 29

extends leg

Question 30

Adductors

Answer 30

adducts, flex, and medially rotate thigh

Question 31

What are the the adductor in humans? cats?

Answer 31

Human: adductor longus and magnus Cats: Adductor longus and adductor femoris

Question 32

Hamstrings

Answer 32

extends thigh and flexes leg

Question 33

tibialias anterior

Answer 33

dorsiflexes foot

Question 34

extensor digitorum longus

Answer 34

extends toes

Question 35

gastrocnemius

Answer 35

plantar flexes and everts foot

Question 36

soleus

Answer 36

plantar flexes foot

Question 37

List the 12 cranial nerve in order

Answer 37

``` I. Olfactory II. Optic III. Oculomotor IV. Trochlear V. Trigeminal VI. Abducens VII. Facial VIII. Vestibulocohlear IX. glossopharynegeal X. Vagus XI. Acessory XII. Hypoglossal ```

Question 38

Olfactory

Answer 38

I. purely sensory: carries afferent impulses associated with sense of smell; olfactory epithelium

Question 39

Optic

Answer 39

II. Purely sensory: carries afferent impulses associated with vision;

Question 40

Vagus

Answer 40

X. Mixed; Supply heart and smooth muscles of abdominal visceral organs; thorax and abdomen

Question 41

Vestibocochlear

Answer 41

VIII. Purely sensory; equilibrium; internal acoustic meatus

Question 42

Facial

Answer 42

VII. Mixed; motor fibers to muscles of facial expression, lacrimal and salivary glands; tongue (taste buds); stylomastoid

Question 43

Abducens

Answer 43

VI. Carries somatic motor fibers to lateral rectus muscle that moves the eyeball; orbital fissure

Question 44

Accessory

Answer 44

XI. Mixed, but primarily motor in function; motor fibers to sternocleidomastoid and trapezius muscles, pharynx, and larynx; muscles of neck and back

Question 45

Glossopharyngeal

Answer 45

IX. Mixed. Gag and swallowing reflexes ; pharynx, tonsils, posterior tongue' throat

Question 46

Trochlear

Answer 46

IV. Primarily motor. Superior oblique muscles that moves the eyeball; superior orbital fissure

Question 47

Hypoglossal

Answer 47

XII. Mixed; Carries somatic motor fibers to muscles of tongue

Question 48

Oculomotor

Answer 48

III. Purely motor; reflex responses to varying light intensity and focusing of eye for near vision

Question 49

Trigeminal

Answer 49

V. Mixed; major sensory nerve of face; motor muscles of mastication and muscles of floor of mouth; sensations of pain, touch and temperature are tested; superior orbital fissure of eye socket

Question 50

What is the importance or significance of the precentral gyrus?

Answer 50

is is the site of the primary motor cortex

Question 51

What is the importance of significance of the postcentral gyrus?

Answer 51

is the site of the primary somatosensory cortex

Question 52

What is the importance of significance of the choroid plexus?

Answer 52

it produces CSF

Question 53

Where is the primary visual cortex located?

Answer 53

occipital lobe

Question 54

Where is the primary auditory cortex located?

Answer 54

temporal lobe

Question 55

What type of neuron cell bodies are in the dorsal horns?

Answer 55

interneurons and sensory fibers

Question 56

What type of neuron cell bodies are in the ventral horn?

Answer 56

cells bodies of motor neurons

Question 57

What type of neuron cell bodies are in the dorsal root ganglion?

Answer 57

cell bodies of sensory neurons