Muscles And nerves

Question 1

Frontalis

Answer 1

Raises eyebrows and wrinkles for head

Question 2

Obicularis oculi

Answer 2

Closes Eye

Question 3

obicularis 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

Shoulder shrugs

Question 8

Latissimus Dorsi

Answer 8

Extends, adducts, and medially rotates arm

Question 9

Pectoralis major

Answer 9

Flexes, adducts and medially rotates arm

Question 10

External oblique

Answer 10

Lateral rotation of the vertebral column; twisting

Question 11

Rectus abdominis

Answer 11

Flexion of the vertebral column; sit ups

Question 12

Deltoid

Answer 12

Abducts, flexes, and rotates arm

Question 13

Triceps brachii

Answer 13

Extends forearm

Question 14

Biceps brachii

Answer 14

Flexes forearm

Question 15

Brachioradialis

Answer 15

Flexes arm

Question 16

Extensor digitorum

Answer 16

Extends fingers and hand

Question 17

Extensor carpi radialis longus

Answer 17

Extends hand

Question 18

Flexor carpi ulnaris 

Answer 18

Flexes hand

Question 19

Palmaris longus

Answer 19

Flexes hand

Question 20

Tensor fascia latae

Answer 20

Flexes, abducts, and rotates thigh

Question 21

Adductor longus

Answer 21

Adducts, flexes, and rotates thigh

Question 22

Gluteus maximus

Answer 22

Extends, abducts, and rotates thigh

Question 23

Gracilis

Answer 23

Adducts thigh and flexes leg

Question 24

Sartorius

Answer 24

Crosses the leg

Question 25

Vastus medialis

Answer 25

Extends leg

Question 26

Vastus lateralis

Answer 26

Extends leg

Question 27

Biceps femoris 

Answer 27

Extends thigh and flexes leg

Question 28

Rectus femoris

Answer 28

Flexes thigh and extends leg

Question 29

Tibialis anterior

Answer 29

Dorsiflexion of the foot; inverts foot

Question 30

Fibularis longus

Answer 30

Plantar flexion of the foot; everts foot

Question 31

Gastrocnemius

Answer 31

Plantar flexion of the foot; flexes leg

Question 32

What is a motor unit?

Answer 32

A motor neuron and all of the muscle cells it stimulates 

Question 33

What is meant by recruitment?

Answer 33

The stimulation of additional motor units for increased strength of contraction

Question 34

Why do some motor units only have a few muscle cells?

Answer 34

To generate precise movements

Question 35

The constant state of low level tension in a muscle is called

Answer 35

Muscle tone

Question 36

Muscle twitch

Answer 36

Contraction due to a single stimulus

Question 37

The three phases of muscle contraction

Answer 37

1. Latent period 2. Contraction 3. Relaxation

Question 38

What occurs when a second contraction is added to the first before complete relaxation?

Answer 38

Temporal (wave) summation

Question 39

What occurs when stimulation is so Rapids at the contraction is smooth and continuous without any relaxation?

Answer 39

Complete (fused) tetanus

Question 40

What are the three factors that determine the strength of a muscle contraction?

Answer 40

1. Frequency of stimulation 2. Number of motor units recruited 3. Degree of muscle stretch

Question 41

_________stretched Muscles have the strongest contractions

Answer 41

Moderately stretched

Question 42

Vestibulocochlear nerve

Answer 42

VIII Sense of hearing and balance

Question 43

Glossopharyngeal nerve

Answer 43

IX Sense of taste, secretion of saliva

Question 44

Vagus nerve

Answer 44

X Contraction and relaxation of smooth muscle Sensory reception of supplied visceral organs

Question 45

Accessory nerve

Answer 45

XII Swallowing Movement of head: -Sternoclcleiomastoid & Trapezius muscle

Question 46

Hypoglossal nerve

Answer 46

XII Movement of tongue

Question 47

Olfactory nerve

Answer 47

I Sense of smell

Question 48

Optic nerve

Answer 48

II Sense of vision

Question 49

Oculomotor nerve

Answer 49

III Superior, inferior, and medial movement of eye

Question 50

Trochlear nerve

Answer 50

IV Movement of eye

Question 51

Trigeminal nerve

Answer 51

V Sensation of pain, touch, temperature, chewing

Question 52

Abducens nerve

Answer 52

VI Lateral movement of the eye

Question 53

Facial Nerve

Answer 53

VII Facial expression, secretion of saliva and tears, sense of taste