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Bio 233 Exam 2 > Lab OIAs > Flashcards

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
Q

Rectus femoris (Insertion)

A

Patella via quadriceps tendon.

Tibial tuberosity via patellar ligament.

26
Q

Vastus medialis (Insertion)

A

Patella via quadriceps tendon.

Tibial tuberosity via patellar ligament.

27
Q

Vastus lateralis (Insertion)

A

Patella via quadriceps tendon.

Tibial tuberosity via patellar ligament.

28
Q

Vastus intermedius (Insertion)

A

Patella via quadriceps tendon.

Tibial tuberosity via patellar ligament.

29
Q

Biceps femoris (Insertion)

A

Head of fibula.

Lateral condyle of tibia.

30
Q

Semimembranosus (Insertion)

A

Medial condyle of tibia.

31
Q

Semitendinosus (Insertion)

A

Medial, proximal surface of tibial shaft.

32
Q

Gastrocnemius (Insertion)

A

Calcaneus via achilles tendon.

33
Q

Sternocleidomastoid (Action)

A

Bilaterally: flexes cervical vertebrae and head.
Unilaterally: Laterally flexes head to same side and rotates to opposite side.

34
Q

Pectoralis Major (Action)

A

As a whole: Adducts and medially rotates arm at shoulder joint.
Clavicular head alone: Flexes arm at shoulder joint.

35
Q

Trapezius (Action)

A

Elevates, retracts, depresses, and upwardly rotates scapula.

Also may elevate clavicle; extend neck.

36
Q

Latissimus dorsi (Action)

A

Extends, adducts, and medially rotates arm at shoulder joint.

37
Q

Rectus abdominis (Action)

A

Flexes trunk and compresses abdomen.

38
Q

Deltoid (Action)

A

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
Q

Biceps brachii (Action)

A

Flexes arm at shoulder joint.
Flexes arm at elbow joint.
Supinates forearm at radioulnar joint.

40
Q

Triceps brachii (Action)

A

Extends arm at shoulder joint.

Extends arm at elbow joint.

41
Q

Rectus Femoris (Action)

A 
Quadriceps: All four heads extend leg at knee joint. 
Rectus femoris (alone): Flexes thigh at hip joint.
42
Q

Vastus medialis (Action)

A 
Quadriceps: All four heads extend leg at knee joint. 
Rectus femoris (alone): Flexes thigh at hip joint.
43
Q

Vastus lateralis (Action)

A 
Quadriceps: All four heads extend leg at knee joint. 
Rectus femoris (alone): Flexes thigh at hip joint.
44
Q

Vastus intermedius (Action)

A 
Quadriceps: All four heads extend leg at knee joint. 
Rectus femoris (alone): Flexes thigh at hip joint.
45
Q

Biceps femoris (Action)

A

Hamstrings: Flexes leg at knee joint.

Extends thigh at hip joint.

46
Q

Semimembranosus (Action)

A

Hamstrings: Flexes leg at knee joint.

Extends thigh at hip joint.

47
Q

Semitendinosus (Action)

A

Hamstrings: Flexes leg at knee joint.

Extends thigh at hip joint.

48
Q

Gastrocnemius (Action)

A

Flexes leg at knee joint; plantarflexes the ankle joint.

Bio 233 Exam 2 (9 decks)

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