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Foundation year anatomy for clinical sciences > Muscles II > Flashcards

Muscles II Flashcards

1
Q

Supination definition

A

Rotation outwards

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2
Q

Pronation definition

A

Rotation inwards

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3
Q

Abduction definition

A

Movement away from midline

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4
Q

Adduction definition

A

Movement towards midline

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5
Q

Muscles of the scapula

A

Supraspinatus

Infraspinatus

Teres minor

Teres major

Subscapularis

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6
Q

Muscles of the ulna

A

Brachialis

Triceps brachii

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7
Q

Muscles of the humerus

A

Deltoid muscle

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8
Q

Muscles of the radius

A

Biceps brachii

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9
Q

Muscles of the innominate

A

Iliacus

Gluteus maximus

Gluteus medius

Gluteus minimus

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10
Q

Muscles of the femur

A

Piriformis

Rectus femoris

Vastus lateralis

Vastus medialis

Vastus intermedius

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11
Q

Origin, insertion and function of supraspinatus

A

Origin: supraspinous fossa of scapula

Insertion: superior facet of greater tubercle

Function: abducts arm at shoulder joint

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12
Q

Origin, insertion and function of infraspinatus

A

Origin: infraspinous fossa of scapula

Insertion: posterior facet of greater tubercle

Function: laterally rotates arm at shoulder joint

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13
Q

Origin, insertion and function of teres minor

A

Origin: inferior lateral border of scapula

Insertion: Inferior aspect of greater tubercle

Function: Laterally rotates arm at shoulder joint and extends arm at shoulder joint

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14
Q

Origin, insertion and function of teres major

A

Origin: lower lateral border and inferior angle of scapula

Insertion: medial lip of intertubercular (bicipital) groove of the anterior humerus

Function: Adducts and extends arm at shoulder joint and medially rotates arm at shoulder joint

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15
Q

Origin, insertion and function of subscapularis

A

Origin: subscapular fossa of scapula

Insertion: Lesser tubercle

Function: Medially rotates arm at shoulder joint

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16
Q

Origin, insertion and function of brachialis

A

Origin: anterior, distal half of humerus

Insertion: coronoid process and tuberosity of ulna

Function: Flexes forearm at elbow

17
Q

Origin, insertion and function of triceps brachii

A

Origin: long head is infraglenoid tubercle; lateral head is above radial groove; medial head is below radial groove

Insertion: posterior olecranon process

Function: extension of forearm and shoulder, long head extends and adducts arm

18
Q

Origin, insertion and function of deltoid

A

Origin: anterior border and superior aspect of the lateral third of the clavicle, acromion and spine of the scapula

Insertion: deltoid tuberosity of humerus

Function: extends, flexes and abducts shoulder

19
Q

Origin, insertion and function of biceps brachii

A

Origin: long head at supraglenoid tubercle and short head at coracoid process

Insertion: radial tuberosity and bicipital aponeurosis

Function: flexes forearm at elbow joint, flexes arm at shoulder joint and supinates forearm at radioulnar joint

20
Q

Origin, insertion and function of iliacus

A

Origin: iliac fossa and sacrum

Insertion: lesser trochanter

Function: flexes and rotates thigh at hip and flexes trunk at pelvis when origin and insertion are reversed

21
Q

Origin, insertion and function of gluteus maximus

A

Origin: iliac crest, sacrum, coccyx and aponeurosis of sacrospinalis

Insertion: gluteal tuberosity and iliotibial tract

Function: extends and laterally rotates thigh at hip (upper fibres help abduct thigh)

22
Q

Origin, insertion and function of gluteus medius

A

Origin: ilium

Insertion: greater trochanter

Function: abducts thighs at hip joint and medially rotates thigh

23
Q

Origin, insertion and function of gluteus minimus

A

Origin: ilium

Insertion: greater trochanter

Function: abducts thigh at hip joint and medially rotates thigh

24
Q

Origin, insertion and function of piriformis

A

Origin: sacrum

Insertion: superior border of greater trochanter

Function: laterally rotates thigh at hip bone

25
Q

Origin, insertion and function of rectus femoris

A

Origin: anterior inferior iliac spine

Insertion: patella via quadriceps tendon and then tibial tuberosity via patellar ligament

Function: extends leg at knee, flexes thigh at hip joint

26
Q

Origin, insertion and function of vastus lateralis

A

Origin: greater trochanter, linea aspera of femur

Insertion: patella via quadriceps tendon and then tibial tuberosity via patellar ligament

Function: extends leg at knee

27
Q

Origin, insertion and function of vastus medialis

A

Origin: linea aspera of femur

Insertion: patella via quadriceps tendon and then tibial tuberosity via patellar ligament

Function: extends leg at knee

28
Q

Origin, insertion and function of vastus intermedius

A

Origin: anterior and lateral surfaces of body of femur

Insertion: patella via quadriceps tendon and then tibial tuberosity via patellar ligament

Function: extends leg at knee

Foundation year anatomy for clinical sciences (26 decks)

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