Muscle Tissue and Muscle System

Question 1

The sternocleidomastoid muscle inserts in the _

Answer 1

mastoid process of the temporal bone

Question 2

The biceps femurs actions the _

Answer 2

hip extension and knee flexion

Question 3

Label each muscle indicated below

Answer 3

A: medial epicondyle of humerus B: pronator teres C: flexor carpi ulnaris D: brachioradialis

Question 4

The thoracic diaphragm is innervated by

Answer 4

the phrenic nerve

Question 5

Name the muscle and its action

Answer 5

A: adbuctor hallucis, abduction of the metatarsophalangeal joint of hallux

Question 6

Label each muscle indicated below

Answer 6

A: sternal head of sternocleidomastoid B: clavicle head of sternocleidomastoid C: trapezius

Question 7

Name the muscle deep to the internal obliquus abdominis

Answer 7

transverse abdominis

Question 8

What fibres segments the rectus abdominis? What is the anatomical name?

Answer 8

Collagenous fibres, tendinous intersections

Question 9

Label each muscle indicated below

Answer 9

A: sternocleidomastoid B: temporalis C: orbicularis oculi

Question 10

Name muscle A and its innervation

Answer 10

fibulas longus, sciatic nerve (common fibular nerve branch)

Question 11

Label each muscle indicated below

Answer 11

A: medial head of gastrocnemius B: lateral head of gastrocnemius C: soleus D: calcanea tendon

Question 12

Label each muscle indicated below

Answer 12

A: trapezius B: deltoid C: lateral head of triceps brachii D: long head of triceps brachii E: latissimus dorsi

Question 13

Label each muscle indicated below

Answer 13

A: trapezius B: long head of biceps brachii C: short head of biceps brachii D: latissimus dorsi

Question 14

Label each muscle indicated below

Answer 14

A: supraspinatus B: subscapularis C: infraspinatus D: teres minor

Question 15

Label each muscle indicated below

Answer 15

A: flexor digitorum superficialis B: flexor pollicis longus C: flexor carpi ulnaris

Question 16

Name the function of the pronator teres

Answer 16

pronation of radioulnar joint

Question 17

Label each muscle and its action

Answer 17

A: flexor pollicis longus, flexion of metacarpophalengeal and interphalangeal joints of the pollex B: flexor digitorum profundus, flexion of the metacarpophalangeal and interphalangeal joints of the manus

Question 18

Label each muscle indicated below, whats the origin of muscle C?

Answer 18

A: extensor retinaculum B: extensor digitorum C: extensor digiti minimi, the lateral epicondyle of the humerus

Question 19

Label A to D, each muscle indicated below

Answer 19

A: rectus femoris B: vastus lateralis C: adductor longus D: vastus medialis

Question 20

Label E to H, each muscle indicated below

Answer 20

E: quadriceps femoris tendon F: patella G: patella ligament H: sartorius

Question 21

Label each muscle indicated below

Answer 21

A: gluteus maximus B: semimembranosus C: semitendinosus D: long head of bicep femoris E: short head of bicep femoris

Question 22

Label each muscle indicated below

Answer 22

A: lateral head of gastrocnemius B: soleus C: patella D: head of fibula E: tibialis anterior F: fibularis longus

Question 23

What four muscles are innervated by the femoral nerve?

Answer 23

Rectus femoris, vastus medialis and vastus laterali, sartorius

Question 24

What is the cell the composes skeletal muscle?

Answer 24

myocyte/myocytes

Question 25

Where is smooth muscle located?

Answer 25

walls of hollow organs like the urinary bladder, uterus, stomach, intestines, and in the walls of passageways, such as the arteries and veins of the circulatory system, and the tracts of the respiratory, urinary, and reproductive systems

Question 26

What is the name and appearance of cardiac muscle cells?

Answer 26

cardiomyocytes/cardiomyocyte, they appear striated and are single cells with a centrally located nucleus

Question 27

Is movement of skeletal muscles voluntary or involuntary?

Answer 27

Voluntary

Question 28

What types of muscle tissue are involuntary?

Answer 28

smooth and cardiac muscle tissue

Question 29

Label each muscle tissue types from left to right

Answer 29

1. skeletal 2. cardiac 3. smooth

Question 30

Define excitability in muscle tissue

Answer 30

plasma membranes change electrical states and send an electrical wave called an action potential along the entire length of the membrane

Question 31

Define contractility in muscle tissue

Answer 31

Contractility allows muscle tissue to pull on its attachment points and shorten with force

Question 32

Name the three types of muscle attachment

Answer 32

tendon, aponeurosis and fleshy attachment

Question 33

Describe aponeurosis

Answer 33

broad flat sheets of dense regular connective tissue that attach to a broad area of bone or cartilage

Question 34

Name the action of the temporalis muscle

Answer 34

mastication

Question 35

Name the three muscles of the back

Answer 35

Erector spinae, Latissimus Dorsi, Trapezius

Question 36

What cavities does the thoracic diaphragm seperate?

Answer 36

The abdominal and thoracic cavities

Question 37

Name the three muscles originating from the medial epicondyle of the humerus

Answer 37

1. Pronator teres 2. Flexor carpi radialis 3. Flexor digitorum superficialis