Lab OIAs Flashcards

1
Q

Sternocleidomastoid (Origin)

A

Sternum.

Clavicle.

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2
Q

Trapezius (origin)

A

Occipital bone.

Cervical and Thoracic vertebrae.

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3
Q

Pectoralis Major (origin)

A

Clavicle.

Sternum/Costal cartilage 2-6.

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4
Q

Deltoid (origin)

A

Anterior fibers: clavicle
Middle fibers: Acromion of scapula.
Posterior fibers: Spine of scapula.

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5
Q

Biceps Brachii (origin)

A

Long head: supraglenoid tubercle of scapula.

Short head: Coracoid process of scapula.

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6
Q

Triceps brachii (origin)

A

Long head: Infraglenoid tubercle of scapula.

Medial and Lateral heads: Posterior surface of humerus.

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7
Q

Latissimus dorsi (origin)

A

Spines of inferior six thoracic vertebrae, lumbar vertebrae, crests of sacrum and ilium, inferior four ribs, inferior angle of scapula.

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8
Q

Rectus abdominis (origin)

A

Pubic crest and pubic symphysis.

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9
Q

Rectus Femoris ( origin)

A

Anterior inferior iliac spine.

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10
Q

Vastus medialis ( origin)

A

Linea aspera of femur.

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11
Q

Vastus lateralis (origin)

A

Linea aspera and greater trochanter of femur.

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12
Q

Vastus intermedius ( origin)

A

Anterior and lateral surfaces of the shaft of femur.

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13
Q

Biceps femoris ( origin)

A

Long head: Ischial tuberosity.

Short head: Linea aspera of femur.

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14
Q

Semimembranosus (origin)

A

Ischial tuberosity.

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15
Q

Semitendinosus (origin)

A

Ischial tuberosity.

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16
Q

Gastrocnemius (origin)

A

Medial and lateral condyles of femur.

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17
Q

Sternocleidomastoid (Insertion)

A

Mastoid process of temporal bone.

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18
Q

Pectoralis Major (Insertion)

A

Greater tubercle and intertubercular groove of humerus.

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19
Q

Trapezius (Insertion)

A

Clavicle, acromion of scapula, spine of scapula.

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20
Q

Latissimus dorsi (Insertion)

A

Intertubercular groove of humerus.

21
Q

Rectus Abdominis (Insertion)

A

Cartilages of 5th-7th ribs and xiphoid process.

22
Q

Deltoid (Insertion)

A

Deltoid tuberosity of humerus.

23
Q

Biceps brachii (Insertion)

A

Radial tuberosity and bicipital aponeurosis.

24
Q

Triceps brachii (Insertion)

A

Olecranon of ulna.

25
Rectus femoris (Insertion)
Patella via quadriceps tendon. | Tibial tuberosity via patellar ligament.
26
Vastus medialis (Insertion)
Patella via quadriceps tendon. | Tibial tuberosity via patellar ligament.
27
Vastus lateralis (Insertion)
Patella via quadriceps tendon. | Tibial tuberosity via patellar ligament.
28
Vastus intermedius (Insertion)
Patella via quadriceps tendon. | Tibial tuberosity via patellar ligament.
29
Biceps femoris (Insertion)
Head of fibula. | Lateral condyle of tibia.
30
Semimembranosus (Insertion)
Medial condyle of tibia.
31
Semitendinosus (Insertion)
Medial, proximal surface of tibial shaft.
32
Gastrocnemius (Insertion)
Calcaneus via achilles tendon.
33
Sternocleidomastoid (Action)
Bilaterally: flexes cervical vertebrae and head. Unilaterally: Laterally flexes head to same side and rotates to opposite side.
34
Pectoralis Major (Action)
As a whole: Adducts and medially rotates arm at shoulder joint. Clavicular head alone: Flexes arm at shoulder joint.
35
Trapezius (Action)
Elevates, retracts, depresses, and upwardly rotates scapula. Also may elevate clavicle; extend neck.
36
Latissimus dorsi (Action)
Extends, adducts, and medially rotates arm at shoulder joint.
37
Rectus abdominis (Action)
Flexes trunk and compresses abdomen.
38
Deltoid (Action)
Anterior fibers: Flexes and medially rotates arm at shoulder joint. Middle fibers: Abducts arm at shoulder joint. Posterior fibers: Extends and laterally rotates arm at shoulder joint.
39
Biceps brachii (Action)
Flexes arm at shoulder joint. Flexes arm at elbow joint. Supinates forearm at radioulnar joint.
40
Triceps brachii (Action)
Extends arm at shoulder joint. | Extends arm at elbow joint.
41
Rectus Femoris (Action)
``` Quadriceps: All four heads extend leg at knee joint. Rectus femoris (alone): Flexes thigh at hip joint. ```
42
Vastus medialis (Action)
``` Quadriceps: All four heads extend leg at knee joint. Rectus femoris (alone): Flexes thigh at hip joint. ```
43
Vastus lateralis (Action)
``` Quadriceps: All four heads extend leg at knee joint. Rectus femoris (alone): Flexes thigh at hip joint. ```
44
Vastus intermedius (Action)
``` Quadriceps: All four heads extend leg at knee joint. Rectus femoris (alone): Flexes thigh at hip joint. ```
45
Biceps femoris (Action)
Hamstrings: Flexes leg at knee joint. | Extends thigh at hip joint.
46
Semimembranosus (Action)
Hamstrings: Flexes leg at knee joint. | Extends thigh at hip joint.
47
Semitendinosus (Action)
Hamstrings: Flexes leg at knee joint. | Extends thigh at hip joint.
48
Gastrocnemius (Action)
Flexes leg at knee joint; plantarflexes the ankle joint.