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PT Course > L2 Muscles Webinar > Flashcards

L2 Muscles Webinar Flashcards

To have an understanding of the level 2 muscles, their origins, insertions and actions.

1
Q

What is an origin?

A

The proximal attachment point of a muscle- the static end

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2
Q

What is an insertion?

A

The distal attachment point of a muscle- the moving end

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3
Q

What is the origin of the deltoids?

A

Clavicle and scapula

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4
Q

What is the insertion of the deltoids?

A

Humerus

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5
Q

What are the actions of the deltoids?

A

Abduction of arm

Flexion & Extension of shoulder

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6
Q

What is the origin of the biceps brachii?

A

Scapula

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7
Q

What is the insertion of the biceps brachii?

A

Radius

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8
Q

What are the actions of the biceps brachii?

A

Flexion of the elbow
Supination of the forearm
Flexion of the shoulder

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9
Q

What is the origin of the triceps brachii?

A

Two heads to Humerus

Long head to scapula

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10
Q

What is the insertion of the triceps brachii?

A

Ulna

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11
Q

What are the actions of the triceps brachii?

A

Extension of elbow

Extension of shoulder

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12
Q

What are the origins of the latissimus doors?

A

Lower thoracic vertebrae,
Lumbar vertebrae,
Ilium

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13
Q

What are the insertions of the latissimus dorsi?

A

Adduction of arm

Shoulder extension

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14
Q

What is the origin of the trapezius?

A

Base of skull, cervical spine, thoracic vertebrae

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15
Q

What is the insertion of the trapezius?

A

Clavicle and scapula

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16
Q

What are the actions of the trapezius?

A

Elevation of shoulder girdle
Retraction of shoulder girdle
Depression of shoulder girdle

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17
Q

What is the origin of the rhomboid minor?

A

Spinous processes of C7-T1

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18
Q

What is the origin of rhomboid major?

A

Spinous processes of T2-T5

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19
Q

What is the insertion of rhomboid minor?

A

Medial border of scapula

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20
Q

What is the insertion of rhomboid major?

A

Medial border and inferior angle of scapula

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21
Q

What is the action of the rhomboids?

A

Retraction of the shoulder girdle

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22
Q

What is the origin of the pectoralis major?

A

Clavicle and sternum

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23
Q

What is the insertion of the pectoralis major?

A

Humerus

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24
Q

What are the actions of the pectoralis major?

A

Horizontal flexion of arm

Adduction of shoulder

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25
What are the origins of the erector spinae muscles?
Sacrum Ilium Ribs Vertebrae
26
What are the insertion of the erector spinae muscles?
Ribs Vertebrae Occipital bone
27
What are the actions of the erector spinae?
Extension and lateral flexion of the spine
28
What is the origin of the rectus abdominis?
Pubis
29
What is the insertion of the rectus abdominis?
Sternum
30
What are the actions of the rectus abdominis?
Flexion of spine | Lateral flexion of spine
31
Which direction to the internal obliques run in?
Diagonally and horizontally
32
What is the origin of the internal obliques?
Ribs and ilium
33
What is the insertion of the internal obliques?
Ilium, pubis, ribs, linea alba
34
What are the actions of the internal obliques?
Rotation and lateral flexion of the spine
35
What is the origin of the external obliques?
Ribs
36
What are the insertion of the external obliques?
Ilium and pubis
37
What are the actions of the external obliques?
Rotation and lateral flexion of the spine
38
What is the origin of the transversus abdominis?
Iliac crest and lumbar fascia
39
What is the insertion of the transverses abdominis?
pubis and linea alba
40
What is the action of the transversus abdominis?
Support of internal organs, forced expiration, reduced injury risk
41
What is the origin of the diaphragm?
Sternum, costal cartilages and lumbar vertebrae
42
What is the insertion of the diaphragm?
Central tendon
43
What is the action of the diaphragm?
Depresses and aids in expiration
44
What is the origin of the intercostals?
Ribs and costal cartilages
45
What is the insertion of the intercostals?
Superior border of the next rib below
46
What are the actions of the intercostals?
elevation of ribs and aids in expiration
47
What are the two hip flexors?
Psoas major and iliacus
48
What are the origins of the hip flexors?
ilium and lumbar vertebrae
49
What are the insertions of the hip flexors?
femur
50
What is the origin of the gluteus maximus?
Ilium
51
What is the insertion of the gluteus maximus?
Femur
52
What are the actions of the gluteus maximus?
Extension and external rotation of the hip
53
What are the abductors?
Gluteus medius and minimus
54
What is the origin of the abductors?
Ilium
55
What is the insertion of the abductors?
Femur
56
What are the actions of the abductors?
abduction and internal rotation of the hip
57
What are the hip adductors?
Adductor magnus Adductor Longus Adductor brevis
58
What is the origin of the adductors?
Pubis and ischium
59
What is the insertion of the adductors?
Femur
60
What are the actions of the adductors?
Adduction of the hip
61
What are the 4 quadriceps?
Rectus femoris Vastus intermedius Vastus lateralis Vastus medialis
62
What is the origin of rectus femoris?
Ilium
63
What is the insertion of the rectus femoris?
Tibia
64
Why is rectus femoris different to the other quadriceps?
It is the only one to cross the hip joint
65
What is the origin of the vastus muscles?
Femur
66
What is the insertion of the vas's muscles?
Tibia
67
What are the actions of the quadriceps?
Extension of the knee and flexion of the hip (rectus femoris only)
68
What are the hamstring muscles?
Biceps Femoris Semi-tendinosus Semi-membranosus
69
What is the origin of the hamstrings?
Ischium and femur
70
What is the insertion of the hamstring muscles?
Tibia and fibula
71
What are the actions of the hamstring muscles?
Extension of hip and flexion of knee
72
What is the origin of the gastrocnemius?
Femur
73
What is the insertion of gastrocnemius?
Calcaneus
74
What is the action of gastrocnemius?
Plantarflexion of ankle | Knee flexion
75
What is the origin of the soleus?
Tibia
76
What is the insertion of soleus?
calcaneus
77
What is the action of the soleus?
Plantarflexion of ankle
78
What is the origin of tibialis anterior?
Tibia
79
What is the insertion of tibialis anterior?
Metatarsals and tarsals
80
What are the actions of the tibialis anterior?
Dorsiflexion and inversion of the ankle

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