15: ANTERIOR MUSCLES

Question 1

Where is the serratus anterior (upper body)

Answer 1

sides of ribs

Question 2

what does the serratus anterior cross

Answer 2

crosses the shoulder girdle, moves the scapula relative to the rib cage

Question 3

what does the serratus anterior do

Answer 3

pulls shoulder girdle forward and upwardly rotates the scapula

Question 4

where is the pectoralis major (upper body)

Answer 4

chest

Question 5

what does the pec major cross

Answer 5

crosses shoulder joint

Question 6

what does the pec major do

Answer 6

draws arms across the body (flexion/abduction)
turns arm inwards (medial rotation)
draws arm down to the side (abduction)
Lifts arm forwards (flexion)

Question 7

where is the pec minor (upper body)

Answer 7

front of chest (beneath major)

Question 8

what does the pec minor cross

Answer 8

shoulder girdle

Question 9

what does the pec minor do

Answer 9

pulls shoulder girdle forward (protraction)
downwardly rotates scapula (works with rhomboids)

Question 10

where is the subscapularis (upper body)

Answer 10

one of the 4 muscles of the rotator cuff, attaches to the scapula and extends up to the humerus

Question 11

where does the subscapularis cross

Answer 11

crosses the shoulder joint

Question 12

what does the subscapularis do

Answer 12

medially rotates the humerus at shoulder
stabilises the joint

Question 13

4 main muscles of the upper body

Answer 13

Pec Major
Pec minor
subscapularis
serratus anterior

Question 14

Where is the biceps brachii (arm)

Answer 14

front of the upper arm

Question 15

where does the biceps brachii cross

Answer 15

crosses elbow and shoulder

Question 16

what does the biceps brachii do

Answer 16

bends the elbow (flexion)
turns forearm hand up (supination)
assists raising the arm to the shoulder (shoulder flexion)

Question 17

Where is the Brachialis (arm)

Answer 17

front of upper arm

Question 18

where does the brachialis cross

Answer 18

elbow joint

Question 19

What does the brachialis do

Answer 19

bends the elbow

Question 20

Where is the brachioradialis (arm)

Answer 20

forearm

Question 21

what does the brachioradialis cross

Answer 21

elbow

Question 22

what does the brachioradialis do

Answer 22

bends the elbow

Question 23

Main muscles in the arm

Answer 23

Biceps Brachii
Brachialis
brachioradialis

Question 24

Where is the rectus abdominis (abdominals)

Answer 24

front of torso

Question 25

What does the rectus abdominis cross

Answer 25

crosses the intervertebral joints of the lumbar and thoracic vertebrae

Question 26

what does the rectus abdominis do

Answer 26

bends the torso forward (flexion) tilts the pelvis backwards (posterior tilt)

Question 27

Where is the transverse abdominis (abdominals)

Answer 27

sides of the torso

Question 28

where does the transverse abdominis cross

Answer 28

intervertebral joints of lumbar and thoracic

Question 29

what does the transverse abdominis do

Answer 29

compresses the abdominal contents

Question 30

Where are the internal and external obliques (abdominals)

Answer 30

sides of the torso

Question 31

where do the internal and external oblique cross

Answer 31

intervertebral joints of lumbar and thoracic

Question 32

what does the internal and external obliques do

Answer 32

pulls the torso to the side (acts unilaterally) turns the torso bends torso forward

Question 33

main muscles of the abdominals

Answer 33

1. rectus abdominis 2. transverse abdominis 3. internal and external obliques

Question 34

where are the iliacus muscles (hips)

Answer 34

inside surface of the pelvis

Question 35

where does the iliacus cross

Answer 35

crosses the hip

Question 36

what does the iliacus muscle do

Answer 36

lifts the thigh (hip flexion)

Question 37

where is the psoas major muscle (hip)

Answer 37

lumbar spine and across the inside of the pelvis

Question 38

where does the psoas major muscle cross

Answer 38

crosses the hip and lumbar intervertebral joints

Question 39

what does the psoas major muscle do

Answer 39

lifts the thigh (flexion) pulls the trunk towards the leg (sit up) assists in lateral flexion of the trunk helps stabilise the lumbar spine

Question 40

Where is the sartorius muscle (hip)

Answer 40

front of the thigh (inward) - longest muscle in the body

Question 41

where does the sartorius muscle cross

Answer 41

across hip and knee

Question 42

what does the satorius muscle do

Answer 42

pulls thigh upwards pulls thigh to the side (hip lateral rotation) pull thigh outwards (hip abduction) assists in bending the knee (knee flexion) assists in turning the leg inwards (knee medial rotation)

Question 43

where is the tensor fascia latae (hip)

Answer 43

front outside of hip

Question 44

what does the tensor fascia latae cross

Answer 44

crosses hip and knee

Question 45

what does the tensor fascia latae do

Answer 45

lifts the thigh (flexion) turns thigh inwards (hip medial rotation) raises thigh to the side (hip abduction)

Question 46

main muscles of the hip

Answer 46

1. Iliasus 2. Psoas major 3. Sartorius 4. Tensor fascia latae

Question 47

Where is the rectus femoris (quadriceps)

Answer 47

front of thighs

Question 48

where does the rectus femoris cross

Answer 48

knee and hip

Question 49

what does the rectur femoris do

Answer 49

straightens the knee (knee extension) lights the thigh (hip flexion)

Question 50

where is the vastus lateralis (quadriceps)

Answer 50

front outside of thigh

Question 51

where does the vastus lateralis cross

Answer 51

the knee

Question 52

what does the vastus lateralis do

Answer 52

straightens the knee (knee extension)

Question 53

where is the vastus intermedius (quadriceps)

Answer 53

front of the thigh

Question 54

what does the vastus intermedius cross

Answer 54

knee

Question 55

what does the vastus intermedius do

Answer 55

straightens the knee

Question 56

where is the vastus medials (quadriceps)

Answer 56

front inside of thigh

Question 57

what does the vastus medials cross

Answer 57

crosses the knee

Question 58

what does the vastus medials do

Answer 58

straightens the knee

Question 59

what are the 4 muscles that make up the quadriceps group

Answer 59

1. rectus femoris 2. vastus lateralis 3. vastus intermediua 4. vastus medials

Question 60

Where is the abductor magnus, brevis and longus (abductor group)

Answer 60

inside of thigh

Question 61

where does the abductor magnus, brevis and longus cross

Answer 61

the hip

Question 62

what does the abductor magnus, brevis and longus do

Answer 62

pulls thigh into the body from the side

Question 63

where is the pectinius muscle (abductor group)

Answer 63

inside of thigh

Question 64

what does the pectineus cross

Answer 64

the hip

Question 65

what does the pectineus do

Answer 65

pulls thigh into the body from the side (adduction) assists in turning the thigh inwards (hip medial rotation) assists in raising the thigh (hip flexion)

Question 66

where is the gracilis muscle (abductor group)

Answer 66

inside of thigh

Question 67

what does the gracilis cross

Answer 67

hip and knee

Question 68

what does the gracilis do

Answer 68

pulls thigh into the body from the side (adduction) assists hamstring in bending the knee (knee flexion)

Question 69

what muscles make up the abductor group (anterior)

Answer 69

Gracilis Pectineus abductor magnus, bravis and longus

Question 70

where is the tibialis anterior muscle (lower leg)

Answer 70

front of shin

Question 71

where does the tibialis anterior muscle cross

Answer 71

the ankle

Question 72

what does the tibilis anterior muscle do

Answer 72

raises the foot (ankle dorsi flexion) turns sole of the foot inwards