Lab Exam Two: Muscles

Question 1

Cranium covered by […], the […] covers the forehead and […] covers the rear end.

Answer 1

occupitofrontalis; frontalis; occipitalis

Question 2

Wink is done by:

Answer 2

orbicularis oculi

**encircles eye

Question 3

Kiss is done by:

Answer 3

orbicularis oris

**encircles mouth

Question 4

Chewing is done by the:

Answer 4

temporalis and masseter

Question 5

What is the prime mover of neck flexion? Where does it being and end?

Answer 5

sternocleidomastoid

extends from upper sternum to behind the ear

Question 6

Another neck muscle on the posterior side of the neck?

Answer 6

splenius capitis

Question 7

What are the 3 layers of muscle that lie between the ribs?

Answer 7

1. external intercostal (oblique 45)
2. internal intercostal (oblique 135)
3. innermost intercostal (parallel)

Question 8

Muscles of anterior abdominal wall:

from superficial to deepest

Answer 8

1. external abdominal oblique (downward and anteriorly)
2. internal abdominal oblique
   (upward and anteriorly)
3. transverse abdominal
   (horizontal)

Question 9

Anteriorly a pair of vertical […] extend from sternum to pubis (six pack).

Answer 9

rectus abdominis muscles

Question 10

Two other parts of the abdominal wall besides the rectus abdominis muscles:

Answer 10

1. linea alba

2. inguinal ligament

Question 11

Anterior muscles of the pectoral girdle:

Answer 11

1. pectoralis minor

2. serratus anterior

Question 12

Posterior muscles of the pectoral girdle:

Answer 12

1. trapezius (superficial)

DEEP

2. levator scapulae
3. rhomboideus minor
4. rhomboideus major

Question 13

Axial muscles acting on the arm:

Answer 13

1. pectoralis major

2. latissimus dorsi

Question 14

Muscle acting on the arm:

Answer 14

1. deltoid (caps shoulder)

2. rotator cuff muscles

Question 15

Commonly used site of drug injections:

Answer 15

deltoid

Question 16

What muscles belong to the rotator cuff?

Answer 16

1. supraspinatus
2. infraspinatus
3. teres minor
4. subscapularis

Question 17

Muscles with bellies in the arm:

Answer 17

brachium

Question 18

Principal elbow flexors are:

Answer 18

1. brachialis

2. biceps brachii

Question 19

Prime mover of elbow extensor:

Answer 19

triceps brachii

Question 20

Muscles with bellies in the forearm:

Answer 20

antebrachium

Question 21

The […] is in the lateral ([…]) side of the forearm just distal to the elbow.

Answer 21

brachioradialis; radial

Question 22

Tendons of the forearm pass under a fibrous bracelet-like sheet call […] on the anterior side OR […] on the posterior side.

Answer 22

flexor retinaculum; extensor retinaculum

Question 23

Carpal tunnel is between:

Answer 23

flexor retinaculum and carpal bones

Question 24

Lateral muscles of the hip are the […] and the three gluteal muscles are […], […], […].

Answer 24

tensor fasciae latae; maximus; medis; minimus

Question 25

Fasciae divide the thigh into three compartments:

Answer 25

1. anterior (extensor) compartment 2. posterior (flexor) compartment 3. medial (adductor) compartment

Question 26

Medial adductor compartment also contains:

Answer 26

1. adductor longus 2. adductor magnus 3. gracilis 4. brevis 5. pectineus

Question 27

Quadriceps femoris muscle has [...] heads which all converge on the [...] tendon.

Answer 27

4; patellar

Question 28

What are the 4 heads of the quadriceps femoris?

Answer 28

1. rectus femoris 2. vastus lateralis 3. vastus medialis 4. vastus intermedius

Question 29

What is the longest muscle in the body?

Answer 29

sartorius

Question 30

Posterior flexor compartment of the thigh also known as [...].

Answer 30

hamstring muscles

Question 31

Hamstring muscles:

Answer 31

1. biceps femoris 2. semitendinosus 3. semimembranosus

Question 32

Posterior flexor compartment of the leg also known as [...].

Answer 32

triceps surae

Question 33

Triceps surae:

Answer 33

1. gastrocnemius | 2. soleus

Question 34

Triceps surae insert on the calcaneus by way of the [...] tendon.

Answer 34

achilles

Question 35

Dorsiflexion and inversion of the foot is done by [...].

Answer 35

tibialis anterior (shin) fibularis longus (lateral side) extensor retinaculum (top ankle)

Question 36

Flexion is a movement that [...] joint angle usually in the [...] plane.

Answer 36

decreases; sagittal

Question 37

Extension is a movement that [...] a joint and generally returns body part to [...].

Answer 37

straightens; zero position

Question 38

Abduciton is the movement of a body part in the frontal plane [...] which adduction is movement in the frontal plane [...].

Answer 38

away from midline; toward midline

Question 39

Elevation is movement that [...] in the frontal plane while depression [...] in the frontal plane.

Answer 39

raises body part; lowers body part

Question 40

Protraction is the [...] in the horizontal plane while retraction it the [...].

Answer 40

anterior movement; posterior movement.

Question 41

Circumduction:

Answer 41

one end of an appendage remains stationary while the other makes a circular motion

Question 42

Rotation:

Answer 42

movement in which a bone spins on its longitudinal axis

Question 43

What are the two rotations?

Answer 43

1. medial (internal) rotation | 2. lateral (external) rotation

Question 44

Supination palm faces [...] while pronation palm faces [...].

Answer 44

anteriorly/upward; posteriorly/downward