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anatomy > Lab 2 > Flashcards

Lab 2 Flashcards

1
Q

Origin of Pectoralis Major

A

-clavicular head, medical clavicle
- Sternal head – Sternum and costal cartilages of superior ribs

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2
Q

Insertion of Pectoralis Major

A
  • Lateral bicipital (intertubercular) groove of humerus
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3
Q

Action of Pectoralis Major

A
  • Adduction of shoulder
  • Horizontal adduction of shoulder
  • Internal rotation of shoulder
    Clavicular head:
  • Flexion of shoulder
    Sternal head:
  • Extension of shoulder to neutral
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4
Q

Nerve Supply of Pectoralis Major

A
  • Clavicular head – Lateral and medial pectoral nerves
  • Sternal head – Medial pectoral nerve
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5
Q

OIAN of Pectoralis Major

A

O: - Clavicular head – Medial clavicle
- Sternal head – Sternum and costal cartilages of superior ribs
I: Lateral bicipital (intertubercular) groove of humerus
A:- Adduction of shoulder
- Horizontal adduction of shoulder
- Internal rotation of shoulder
Clavicular head:
- Flexion of shoulder
Sternal head:
- Extension of shoulder to neutral
N: Clavicular head – Lateral and medial pectoral nerves
- Sternal head – Medial pectoral nerve

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6
Q

Origin of Pectoralis Minor

A

Anterior surface of ribs 3-5

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7
Q

Insertion of Pectoralis Minor

A

Coracoid process of scapula

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8
Q

Actions of Pectoralis Minor

A

Protraction of scapula
- Depression of scapula
- Downward rotation of scapula

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9
Q

Nerve Supply of Pectoralis Minor

A

Medial Pectoral Nerve

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10
Q

OIAN of Pectoralis Minor

A

Origin: - Anterior surface of ribs 3-5
Insertion: - Coracoid process of scapula
Action:
- Protraction of scapula
- Depression of scapula
- Downward rotation of scapula
Nerve Supply: - Medial pectoral nerve

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11
Q

Origin of Serratus Anterior

A
  • Lateral surface of
    superior ribs
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12
Q

Insertion of Serratus Anterior

A
  • Medial (vertebral) border of scapula
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13
Q

Action of Serratus Anterior

A
  • Protraction of scapula
  • Upward rotation of scapula
  • Holds scapula to thoracic wall
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14
Q

Nerve Supply of Serratus Anterior

A

Long thoracic nerve

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15
Q

OIAN of Serratus Anterior

A

Origin: - Lateral surface of superior ribs
Insertion: - Medial (vertebral) border of scapula
Action: - Protraction of scapula, Upward rotation of scapula, Holds scapula to
thoracic wall
Nerve Supply: - Long thoracic nerve

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16
Q

Origin of Subclavius

A

Costal Cartilage of rib 1

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17
Q

Insertion of Subclavius

A

Inferior border of clavicle

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18
Q

Action of Subclavius

A

Stabilizes Clavicle

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19
Q

Nerve Supply of Subclavius

A

Nerve to subclavius

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20
Q

OIAN of Subclavius

A

Origin: - Costal cartilage of rib 1
Insertion: - Inferior border of clavicle
Action: - Stabilizes clavicle
Nerve Supply: - Nerve to subclavius

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21
Q

Origin of Scalenes

A
  • Transverse processes of cervical vertebrae
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22
Q

Insertion of Scalenes

A

Ribs 1 & 2

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23
Q

Action of Scalenes

A

Elevation of ribs 1 and 2
Flexion of cervical vertebrae
Lateral flexion of cervical vertebrae

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24
Q

Nerve Supply of Scalenes

A

Anterior Rami of Spinal Nerves

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25
Q

OIAN of Scalenes

A

Origin: - Transverse processes of cervical vertebrae
Insertion: - Ribs 1 and 2
Action:
- Elevation of ribs 1 and 2
- Flexion of cervical vertebrae
- Lateral flexion of cervical vertebrae
Nerve Supply: - Anterior rami of spinal nerves

26
Q

Origin of Sternocleidomastoid

A

Sternal head- Manubrium
Clavicular head- Medial Clavicle

27
Q

Insertion of Sternocleidomastoid

A

Mastoid Process

28
Q

Actions of Sternocleidomsastoid

A

Flexion of neck
Ipsilateral lateral flexion of neck and contralateral rotation of neck

29
Q

Nerve Supply of Sternocleidomastoid

A

Cranial nerve 11 (accessory)

30
Q

OIAN of Sternocleidomastoid

A

Origin:
- Sternal head – Manubrium
- Clavicular head – Medial clavicle

Insertion: - Mastoid process

Action:
- Flexion of neck
- Ipsilateral lateral flexion of neck
and contralateral rotation of neck

Nerve Supply: - Cranial nerve XI

31
Q

Origin of Platysma

A

Fascia over upper chest

32
Q

Insertion of Platysma

A

Mandible

33
Q

Action of Platysma

A

Tension of skin of neck

34
Q

Nerve Supply of Platysma

A

Cranial Nerve VII (facial)

35
Q

OIAN of Platysma

A

Origin: - Fascia over upper chest
Insertion: - Mandible
Action: - Tension of skin of neck
Nerve Supply: - Cranial nerve VII

36
Q

Origin of External Intercostals

A

Inferior margin of rib above

37
Q

Insertion of External Intercostals

A

Superior margin of rib below

38
Q

Action of External intercostals

A

Elevates ribs during inspiration

39
Q

Nerve supply of external intercostals

A

intercostal nerves

40
Q

OIAN of external intercostals

A

Origin: - Inferior margin of rib above
Insertion: - Superior margin of rib below
Action: - Elevates ribs during inspiration
Nerve Supply: - Intercostal nerves

41
Q

Origin of Internal Intercostal

A

Superior margin of rib below

42
Q

Insertion of Internal Intercostal

A

Inferior margin of rib above

43
Q

Action of Internal Intercostal

A

Depresses ribs during forced expiration

44
Q

Nerve supply of internal intercostal

A

Intercostal nerves

45
Q

OIAN of Internal Intercostal

A

Origin: - Superior margin of rib below
Insertion: - Inferior margin of rib above
Action: - Depresses ribs during forced expiration
Nerve Supply: - Intercostal nerves

46
Q

What are the roots of the Musculocutaneous nerve?

A

C5, C6, C7

47
Q

Roots of the Median Nerve.

A

C5, C6, C7, C8, T1

48
Q

Roots of Ulnar nerve

A

C8, T1

49
Q

Roots of Lateral pectoral Nerve

A

C5, C6, C7

50
Q

Roots of Axillary nerve

A

c5, C6

51
Q

Roots of radial nerve

A

C5,6,7,8
T1

52
Q

Roots of lower subscapular nerve

A

C5,6

53
Q

Roots of thoracodorsal nerve

A

C6,7,8

54
Q

Roots of upper subscapular nerve

A

C5, C6

55
Q

Roots of Medial antebrachial cutaneous nerve

A

C8, T1

56
Q

Roots of Medial brachial cutaneous nerve

A

C8, T1

57
Q

Roots of medial pectoral nerve

A

C8, T1

58
Q

Roots of Subclavius and suprascapular nerves

A

C5, 6

59
Q

Roots of Dorsal Scapular nerve

A

C5

60
Q

Roots of Long thoracic nerve

A

C5,6,7

anatomy (14 decks)

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