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A&P Lab > Muscle Quiz 1 > Flashcards

Muscle Quiz 1 Flashcards

(78 cards)

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1
Q

Sternocleidomastoid Origin

A
  • Manubrium

- Medial portion of the clavicle

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2
Q

Sternocleidomastoid Insertion

A
  • Mastoid process of the temporal bone

- Superior nuchal line of the occipital bone

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3
Q

Sternocleidomastoid Action

A
  • Causes flexion of neck forward

- Rotates head toward shoulder on opposite side

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4
Q

Splenius Capitis and Cervicis Origin

A
  • Ligamentum nuchae

- Spinous processes of C7-T6

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5
Q

Splenius Capitis and Cervicis Insertion

A
  • Mastoid process
  • Occipital bone
  • Transverse process of C2-C4
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6
Q

Splenius Capitis and Cervicis Action

A

Extend or hyperextend head

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7
Q

Trapezius Origin

A
  • Occipital bone
  • Ligamentum nuchae
  • Spines of C7 and all thoracic vertebrae
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8
Q

Trapezius Insertion

A
  • Acromion and spinous process of scapula

- Lateral third of clavicle

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9
Q

Trapezius Action

A

-Raises, rotates and adducts scapula and stabilizes it

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10
Q

Pectoralis Minor Origin

A

-Anterior surface of ribs 3-5 near their costal cartilage

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11
Q

Pectoralis Minor Insertion

A

-Coracoid process of scapula

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12
Q

Pectoralis Minor Action

A

-With ribs fixed, draws scapula forward and inferiorly

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13
Q

Deltoid Origin

A
  • Lateral third of the clavicle

- Acromion and spine of scapula

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14
Q

Deltoid Insertion

A

-Deltoid tuberosity of Humerus

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15
Q

Deltoid Action

A

-Acting as a whole, prime mover of arm abduction

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16
Q

Pectoralis Major Origin

A
  • Clavicle
  • Sternum
  • Cartilage of ribs 1-6
  • Aponeurosis of external oblique muscle
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17
Q

Pectoralis Major Insertion

A

-Fibers converge to insert by short tendon into intertubercular sulcus of Humerus

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18
Q

Pectoralis Major Action

A

-Prime mover of arm flexion; adducts, medially rotates arm

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19
Q

Latissimus Dorsi Origin

A
  • Attachment to spinous process of lower thoracic vertebrae
  • Last 3-4 ribs
  • Illiac crest
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20
Q

Latissimus Dorsi Insertion

A

-Floor of intertubercular sulcus of humerus

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21
Q

Latissimus Dorsi Action

A

-Prime mover of arm extension; abducts and medially rotates arm

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22
Q

Biceps Brachii Origin

A
  • Short head-Coracoid process

- Long head-Runs in intertubercular sulcus and within capsule of shoulder joint

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23
Q

Biceps Brachii Insertion

A

Radial tuberosity

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24
Q

Biceps Brachii Action

A

-Flexion of elbow and supination of forearm

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25
Brachialis Origin
-Distal portion of anterior Humerus
26
Brachialis Insertion
-Coranoid process of ulna
27
Brachialis Action
-Major flexor of forearm
28
Triceps Brachii Origin
- Long head-inferior margin of glenoid cavity - Lateral head-posterior humerus - Medial head-distal radial groove on posterior humerus
29
Triceps Brachii Insertion
-Olecranon process of ulna
30
Triceps Brachii Action
-Powerful forearm extensor
31
Brachioradialis Origin
-Lateral supracondylar ridge of humerus
32
Brachioradialis Insertion
-Styloid process of radius
33
Brachioradialis Action
-Flexes forearm at elbow
34
Flexor Carpi Radialis Origin
-Medial epicondyle of humerus
35
Flexor Carpi Radialis Insertion
-Bases of second and third metacarpals
36
Flexor Carpi Radialis Action
-Flexes and radial abducts hand at wrist
37
Flexor Carpi Ulnaris Origin
-Medial epicondyle of humerus
38
Flexor Carpi Ulnaris Insertion
-Pisiform, hook of hamate and base of 5th metacarpal
39
Flexor Carpi Ulnaris Action
Flexes and ulnar adducts hand at wrist
40
Extensor Carpi Radialis Longus Origin
-Lateral supracondylar ridge of humerus
41
Extensor Carpi Radialis Longus Insertion
-base of metacarpal 2
42
Extensor Carpi Radialis Longus Action
-Extends and abducts wrist
43
Extensor Carpi Radialis Brevis Origin
Lateral epicondyle of humerus
44
Extensor Carpi Radialis Brevis Insertion
-Base of metacarpal 3
45
Extensor Carpi Radialis Brevis Action
-Extends and abducts wrist
46
Extensor Carpi Ulnaris Origin
-Lateral epicondyle of humerus
47
Extensor Carpi Ulnaris Insertion
Base of 5th metacarpal (dorsal)
48
Extensor Carpi Ulnaris Action
-Extends and ulnar adducts hand at wrist
49
Flexor Digitorum Superficialis Origin
-Medial epicondyle of humerus and coronoid process of ulna (Upper anterior surface of radius
50
Flexor Digitorum Superficialis Insertion
-Middle phalanges of digits 2-5
51
Flexor Digitorum Superficialis Action
-Flexes middle phalanges also flexes proximal phalanges hand at wrist and forearm at elbow
52
Flexor Digitorum Profundis Origin
-Anteromedial surface of ulna. Interosseous membrane
53
Flexor Digitorum Profundis Insertion
-Distal phalanges of fingers 2-5
54
Flexor Digitorum Profundis Action
-Flexes distal phalanges
55
Extensor Digitorum Origin
-Lateral epicondyle of humerus
56
Extensor Digitorum Insertion
-Distal phalanges 2-5
57
Extensor Digitorum Action
-Extends wrist and fingers (middle of digits 2-5)
58
Diaphragm Origin
- Inferior border of ribs and sternum | - Costal cartilages of last six ribs and lumbar vertebra
59
Diaphragm Insertion
-Central tendon
60
Diaphragm Action
-Prime mover of inspiration flattens on contraction
61
External Intercostals Origin
-Inferior border of rib above
62
External Intercostals Insertion
-Superior border of rib below
63
External Intercostals Action
-Pull ribs toward one another to elevate rib cage
64
Internal Intercostals Origin
-Superior border of rib below
65
Internal Intercostals Insertion
-Inferior border of rib above
66
Internal Intercostals Action
-Draw ribs together to depress rib cage
67
External Oblique Origin
-External surfaces of ribs 5-12
68
External Oblique Insertion
-Anterior illiac crest and abdominal aponeurosis to linea alba
69
External Oblique Action
-Flexes vertebral column, rotates vertebral column, laterally flexes vertebral column
70
Internal Oblique Origin
-Anterior iliac crest, lateral half of inguinal ligament and thoracolumbar fascia
71
Internal Oblique Insertion
-Costal cartilages of ribs 8-12; abdominal aponeurosis to linea alba
72
Internal Oblique Action
-Flexes vertebral column, rotates vertebral column, laterally flexes vertebral column
73
Transverse Abdominus Origin
-Anterior iliac crest, lateral half of inguinal ligament, thoracolumbar fascia and cartilages of ribs 6-12
74
Transverse Abdominus Insertion
-Abdominal aponeurosis to linea alba, xiphoid process and pubic symphysis
75
Transverse Abdominus Action
-Compresses abdomen
76
Rectus Abdominus Origin
-Pubic crest and symphysis pubis
77
Rectus Abdominus Insertion
-Costal cartilages of ribs 5-7, xiphoid process of sternum
78
Rectus Abdominus Action
-Flexes vertebral column; compresses abdomen

A&P Lab (9 decks)

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