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BIO 141 Lab > Muscles Origins and Insertions > Flashcards

Muscles Origins and Insertions Flashcards

1
Q

Trapezius

A

Origin: Occipital Bone

Insertion: Clavicle

Action: Rotates scapula

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2
Q

Rhomboideus major

A

Action: Raises scaupula

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3
Q

Levator Scapulae

A

Action: Elevates scapula

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4
Q

Serratus anterior

A

Origin: outer surfaces of the upper ribs

Insertion: Ventral surface of scapula

Action: Pulls scapula anteriorly and downward

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5
Q

Pectoralis Minor

A

Origin: Sternal ends of the upper rib

Insertion: Coracoid process of scapula

Action: raises ribs

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6
Q

Coracobrachialis

A

Origin: Coracoid process of scapula

Insertion: Shaft of humerus

Action: Flexes and adducts the arm

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7
Q

Pectoralis Major

A

Origin: Clavicle

Insertion: Intertubercular groove of humerus

Action: rotates arm medially

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8
Q

Latissimus Dorsi

A

Origin: lower ribs

Insertion: Intertubercular groove of humerus

Action: rotates the arm medially

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9
Q

Deltoid

A

Origin: Clavicle

Insertion: Deltoid tuberosity of the humerus

Action: flexes arm

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10
Q

Biceps Brachii

A

Origin: Coracoid Process of scapula

Insertion: Radial tuberosity of radius

Action: Flexes forearm at elbow

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11
Q

Brachialis

A

Origin: Anterior shaft of humerus

Insertion: Coronoid Process of ulna

Action: Flexes forearm at elbow

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12
Q

Brachioradialis

A

Origin: Distal lateral end of the humerus

Insertion: Lateral surface of radius above styloid process

Action: Flexes forearm at elbow

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13
Q

Triceps Brachiii

A

Origin: Tubercule below glenoid cavity

Insertion: Olecranon process of ulna

Action: Extends forearm at elbow

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14
Q

Supinator

A

Origin: Lateral epicondyle of humerus

Insertion: Lateral surface of radius

Action: Rotates forearm laterally

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15
Q

Pronator Quadratus

A

Origin: Anterior distal end of ulna

Insertion: Anterior distal end of radius

Action: Rotates forearm medially

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16
Q

Orbicularis Occuli

A

Origin: Maxillary

Insertion: Skin around eye

Action: Closes eyes as in blinking

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17
Q

Orbicularis Oris

A

Origin: Muscles near the mouth

Insertion: Skin of central lip

Action: protudes lips as for kissing

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18
Q

Buccinator

A

Origin: Outer surfaces of maxilla

Insertion: Orbicularis oris

Action: Compresses cheeks inward as when blowing air

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19
Q

Zygomaticus

A

Origin: Zygomatic Bone

Insertion: Orbicularis Oris

Action: Raises corner of mouth as when smiling

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20
Q

Playsma

A

Origin: Fascia in upper chest

Insertion: Lower border of mandible

Action: Draws angle of mouth downward as in pouting

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21
Q

Masseter

A

Origin: Lower border of zygomatic arch

Insertion: Lateral surface of mandible

Action: Elevates mandible

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22
Q

Temporalis

A

Origin: Temporal bone

Insertion: Interior rams of mandible

Action: Elevates mandible

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23
Q

Medial pterygoid

A

Action: Moves mandible from side to side

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24
Q

Lateral pyerygoid

A

Action: Depresses and protracts mandible

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25
Q

Sternocleidomastoid

A

Origin: Anterior surface of sternum

Insertion: Mastoid process of temporal bone

Action: elevates sternum

26
Q

Splenius capitis

A

Origin: Spinous processes of lower cervical vertebrae

Insertion: Occipital bone

Action: Extends neck

27
Q

Semispinalis capitis

A

Origin: Processes of lower cervical vertebrae

Insertion: Occipital bone

Action: Rotates head

28
Q

External Oblique

A

Origin: Outer surfaces of lower ribs

Insertion: linea alba

Action: Tenses abdominal wall

29
Q

Internal Oblique

A

Origin: Crest of Ilium

Insertion: Linea alba

Action: Tenses abdominal wall

30
Q

Transversus Abdominis

A

Origin: Processes of lumbar vertebrae

Insertion: Linea alba

Action: tenses abdominal wall

31
Q

Rectus Abdominis

A

Origin: Symphysis Pubis

Insertion: Xiphoid Process of Sternum

Action: Tenses abdominal wall

32
Q

Epicranius

A

Origin: Occipital bone

Insertion: Skin and muscles around eye

Action: Raises eyebrows as when suprised

33
Q

Levator Ani

A

Origin: Pubic bone

Insertion: Coccyx

Action: Supports pelvic viscera

34
Q

Coccygeus

A

Origin: Ischial spine

Insertion: Sacrum

Action: Supports pelvic viscera

35
Q

Bilbospongiosus

A

Origin: Centeral tendon

Insertion:

(male) fascia of penis
(female) clitoris

Action:

(male) Assists emptying of urethra
(female) Constricts vagina`

36
Q

Ischiocavernosus

A

Origin: Ischial tuberosity

Insertion: Pubic arch

Action: Assists function of bulbospongiosus

37
Q

Sphincter urethrae

A

Opens and closes urethra

38
Q

Psoas major

A

Origin: Lumbar intervertebral discs

Insertion: Lesser trochanter of femur

Action: Flexes thigh

39
Q

Iliacus

A

Origin: Iliac fossa of Ilium

Insertion: Lesser trochanter of femur

Action: Flexes Thigh

40
Q

Gluteus Maximus

A

Origin: Sacrum

Insertion: Posterior surface of femur

Action: Extends thigh at hip

41
Q

Gluteus Medius

A

Origin: Lateral surface of ilium

Insertion: Greater trochanter of femur

Action: Rotates thigh medially

42
Q

Gluteus Minimus

A

Origin: Lateral surface of ilium

Insertion: Greater trochanter of femur

Action: rotates thigh medially

43
Q

Tensor fasciae latae

A

Origin: Anterior Illiac Crest

Insertion: Iliotibial Band

Action: Rotates thigh medially

44
Q

Adductor longus

A

Action: Flexes thigh

45
Q

Adductor Magnus

A

Action: Extends thigh

46
Q

Gracilis

A

Origin: Lower edge of pubic symphasis

Insertion: Medial surface of tibia

Action: Flexes leg at the knee

47
Q

Biceps femoris

A

Origin: Ischial tuberosity

Insertion: Head of fibula

Action: Extends thigh

48
Q

Semitendinosus

A

Origin: Ischial tuberosity

Insertion: Medial surface of tibia

Action: Extends thigh

49
Q

Semimembranosus

A

Origin: Ischial tuberosity

Insertion: Medial condyle of tibia

Action: Rotates thigh laterally

50
Q

Sartorius

A

Origin: Anterior superior illiac spine

Insertion: Medial surface of tibia

Action: Rotates thigh laterally

51
Q

Rectus femoris

A

Origin: Spine of Ilium

Insertion: Patella

Action: Extends leg at knee

52
Q

Vastus Lateralis

A

Origin: Posterior surface of femur

Insertion: Patella

Action: Extends leg at knee

53
Q

Vastas Medialis

A

Origin: Medial surface of femur

Insertion: Patella

Action: Extends leg at knee

54
Q

Vastus Intermedius

A

Origin: Anterior surface of femur

Insertion: Patella

Action: Extends leg at knee

55
Q

Tibialis Anterior

A

Origin: Lateral surface of tibia

Insertion: first metatarsal

Action: Dorsiflexion

56
Q

Extensor Digitorum Longus

A

Action: Extension of toes

57
Q

Gastroscnemuis

A

Origin: Lateral and medial condyles of femur

Insertion: Posterior surface of calcaneus

Action: Flexion of leg at knee

58
Q

Soleus

A

Origin: Head and shaft of fibula

Insertion: Posterior surface of calcaneus

Action: Plantar flexion of foot

59
Q

Flexor Digitorum Longus

A

Action: Flexion of four lateral toes

60
Q

Fibularis Longus

A

Origin: Lateral condyle of tibia

Insertion: Tarsal and metatarsal bones

Action: Eversion of foot

BIO 141 Lab (10 decks)

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