15: ANTERIOR MUSCLES Flashcards

1
Q

Where is the serratus anterior (upper body)

A

sides of ribs

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2
Q

what does the serratus anterior cross

A

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

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3
Q

what does the serratus anterior do

A

pulls shoulder girdle forward and upwardly rotates the scapula

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4
Q

where is the pectoralis major (upper body)

A

chest

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5
Q

what does the pec major cross

A

crosses shoulder joint

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6
Q

what does the pec major do

A

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

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7
Q

where is the pec minor (upper body)

A

front of chest (beneath major)

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8
Q

what does the pec minor cross

A

shoulder girdle

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9
Q

what does the pec minor do

A

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

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10
Q

where is the subscapularis (upper body)

A

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

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11
Q

where does the subscapularis cross

A

crosses the shoulder joint

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12
Q

what does the subscapularis do

A

medially rotates the humerus at shoulder
stabilises the joint

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13
Q

4 main muscles of the upper body

A

Pec Major
Pec minor
subscapularis
serratus anterior

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14
Q

Where is the biceps brachii (arm)

A

front of the upper arm

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15
Q

where does the biceps brachii cross

A

crosses elbow and shoulder

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16
Q

what does the biceps brachii do

A

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

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17
Q

Where is the Brachialis (arm)

A

front of upper arm

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18
Q

where does the brachialis cross

A

elbow joint

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19
Q

What does the brachialis do

A

bends the elbow

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20
Q

Where is the brachioradialis (arm)

A

forearm

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21
Q

what does the brachioradialis cross

A

elbow

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22
Q

what does the brachioradialis do

A

bends the elbow

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23
Q

Main muscles in the arm

A

Biceps Brachii
Brachialis
brachioradialis

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24
Q

Where is the rectus abdominis (abdominals)

A

front of torso

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25
Q

What does the rectus abdominis cross

A

crosses the intervertebral joints of the lumbar and thoracic vertebrae

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26
Q

what does the rectus abdominis do

A

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

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27
Q

Where is the transverse abdominis (abdominals)

A

sides of the torso

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28
Q

where does the transverse abdominis cross

A

intervertebral joints of lumbar and thoracic

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29
Q

what does the transverse abdominis do

A

compresses the abdominal contents

30
Q

Where are the internal and external obliques (abdominals)

A

sides of the torso

31
Q

where do the internal and external oblique cross

A

intervertebral joints of lumbar and thoracic

32
Q

what does the internal and external obliques do

A

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

33
Q

main muscles of the abdominals

A
  1. rectus abdominis
  2. transverse abdominis
  3. internal and external obliques
34
Q

where are the iliacus muscles (hips)

A

inside surface of the pelvis

35
Q

where does the iliacus cross

A

crosses the hip

36
Q

what does the iliacus muscle do

A

lifts the thigh (hip flexion)

37
Q

where is the psoas major muscle (hip)

A

lumbar spine and across the inside of the pelvis

38
Q

where does the psoas major muscle cross

A

crosses the hip and lumbar intervertebral joints

39
Q

what does the psoas major muscle do

A

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

40
Q

Where is the sartorius muscle (hip)

A

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

41
Q

where does the sartorius muscle cross

A

across hip and knee

42
Q

what does the satorius muscle do

A

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)

43
Q

where is the tensor fascia latae (hip)

A

front outside of hip

44
Q

what does the tensor fascia latae cross

A

crosses hip and knee

45
Q

what does the tensor fascia latae do

A

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

46
Q

main muscles of the hip

A
  1. Iliasus
  2. Psoas major
  3. Sartorius
  4. Tensor fascia latae
47
Q

Where is the rectus femoris (quadriceps)

A

front of thighs

48
Q

where does the rectus femoris cross

A

knee and hip

49
Q

what does the rectur femoris do

A

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

50
Q

where is the vastus lateralis (quadriceps)

A

front outside of thigh

51
Q

where does the vastus lateralis cross

A

the knee

52
Q

what does the vastus lateralis do

A

straightens the knee (knee extension)

53
Q

where is the vastus intermedius (quadriceps)

A

front of the thigh

54
Q

what does the vastus intermedius cross

A

knee

55
Q

what does the vastus intermedius do

A

straightens the knee

56
Q

where is the vastus medials (quadriceps)

A

front inside of thigh

57
Q

what does the vastus medials cross

A

crosses the knee

58
Q

what does the vastus medials do

A

straightens the knee

59
Q

what are the 4 muscles that make up the quadriceps group

A
  1. rectus femoris
  2. vastus lateralis
  3. vastus intermediua
  4. vastus medials
60
Q

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

A

inside of thigh

61
Q

where does the abductor magnus, brevis and longus cross

A

the hip

62
Q

what does the abductor magnus, brevis and longus do

A

pulls thigh into the body from the side

63
Q

where is the pectinius muscle (abductor group)

A

inside of thigh

64
Q

what does the pectineus cross

A

the hip

65
Q

what does the pectineus do

A

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)

66
Q

where is the gracilis muscle (abductor group)

A

inside of thigh

67
Q

what does the gracilis cross

A

hip and knee

68
Q

what does the gracilis do

A

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

69
Q

what muscles make up the abductor group (anterior)

A

Gracilis
Pectineus
abductor magnus, bravis and longus

70
Q

where is the tibialis anterior muscle (lower leg)

A

front of shin

71
Q

where does the tibialis anterior muscle cross

A

the ankle

72
Q

what does the tibilis anterior muscle do

A

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