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Anatomy > Lab 3 > Flashcards

Lab 3 Flashcards

1
Q

Origin of Biceps Brachii (heads)

A
  • Short head – Coracoid process
  • Long head – Supraglenoid tubercle
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2
Q

Insertion of Biceps Brachii

A

Tendon – Radial tuberosity
Bicipital aponeurosis – Antebrachial fascia (medial side)

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3
Q

Actions of Biceps Brachii

A

Both heads:
- Supination of forearm
- Flexion of elbow
Short head:
- Also: Flexion of shoulder

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4
Q

Nerve Supply of Biceps Brachii

A

Musculocutaneous nerve

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5
Q

OIAN of Biceps Brachii

A

Origin:
- Short head – Coracoid process
- Long head – Supraglenoid tubercle

Insertion:
- Tendon – Radial tuberosity
- Bicipital aponeurosis – Antebrachial fascia (medial side)

Action:
Both heads:
- Supination of forearm
- Flexion of elbow
Short head:
- Also: Flexion of shoulder

Nerve Supply: - Musculocutaneous nerve

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6
Q

Origin of Coracobrachialis

A

Coracoid Process

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7
Q

Insertion of Coracobrachialis

A

Middle of medial humerus

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8
Q

Action of Coracobrachialis

A

Flexion of shoulder
adduction of shoulder

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9
Q

Nerve supply of Coracobrachialis

A

Musculocutaneous nerve

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10
Q

OIAN of Coracobrachialis

A

Origin: - Coracoid Process
Insertion: - Middle of medial humerus
Action:
- Flexion of shoulder
- Adduction of shoulder
Nerve Supply: - Musculocutaneous nerve

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11
Q

Origin of Brachialis

A

Distal Anterior Humerus

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12
Q

Insertion of Brachialis

A

Ulnar Tuberosity, coronoid process

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13
Q

Action of Brachialis

A

Flexion of elbow

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14
Q

Nerve supply of Brachialis

A

Musculocutaneous nerve

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15
Q

OIAN of brachialis

A

Origin: - Distal anterior humerus
Insertion:
- Ulnar tuberosity
- Coronoid process
Action: - Flexion of elbow
Nerve Supply: - Musculocutaneous nerve

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16
Q

Origin of Triceps Brachii (heads)

A
  • Long head – Infraglenoid tubercle
  • Lateral head – Posterior humerus above spiral groove
  • Medial head – Posterior humerus below spiral groove
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17
Q

Insertion of Triceps Brachii

A

Olecranon Process

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18
Q

Actions of Triceps Brachii (specific)

A

All heads:
- Extension of elbow
Long head
- Extension of shoulder

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19
Q

Nerve supply of Triceps Brachii

A

Radial Nerve

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20
Q

OIAN of Triceps Brachii

A

Origin:
- Long head – Infraglenoid tubercle
- Lateral head – Posterior humerus above spiral groove
- Medial head – Posterior humerus below spiral groove

Insertion: - Olecranon process

Action:
All heads:
- Extension of elbow
Long head
- Extension of shoulder

Nerve Supply: - Radial nerve

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21
Q

Origin of Supraspinatus

A

Supraspinous fossa

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22
Q

Insertion of supraspinatus

A

superior greater tubercle

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23
Q

Action of Supraspinatus

A

Abduction of shoulder
Stabilizes glenohumeral joint

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24
Q

Nerve Supply of Supraspinatus

A

Suprascapular nerve

25
Q

OIAN of Supraspinatus

A

Origin: - Supraspinous fossa
Insertion: - Superior greater tubercle
Action:
- Abduction of shoulder
- Stabilizes glenohumeral joint
Nerve Supply: - Suprascapular nerve

26
Q

Origin of Infraspinatus

A

Infraspinous fossa

27
Q

Insertion of Infraspinatus

A

Middle greater tubercle

28
Q

Action of Infraspinatus

A

External rotation of shoulder
Stabilizes glenohumeral joint

29
Q

Nerve supply of Infraspinatus

A

Suprascapular nerve

30
Q

OIAN of Infraspinatus

A

O: Infraspinous Fossa
I: Middle greater tubercle
A: External rotation of shoulder; stabilize glenohumeral joint
N: Suprascapular nerve

31
Q

Origin of Teres Minor

A

Superior Axillary border

32
Q

Insertion of Teres Minor

A

Inferior greater tubercle

33
Q

Action of Teres Minor

A

External rotation of shoulder
- Stabilizes glenohumeral joint

34
Q

Nerve supply of Teres Minor

A

Axillary nerve

35
Q

OIAN of Teres Minor

A

Origin: - Superior axillary border
Insertion: - Inferior greater tubercle
Action:
- External rotation of shoulder
- Stabilizes glenohumeral joint
Nerve Supply: - Axillary nerve

36
Q

Origin of Subscapularis

A

Subscapular fossa

37
Q

Insertion of Subscapularis

A

Lesser tubercle

38
Q

Action of Subscapularis

A

Internal rotation of shoulder
Stabilizes glenohumeral joint

39
Q

Nerve Supply of Subscapularis

A

Upper subscapular nerve
Lower subscapular nerve

40
Q

OIAN of subscapularis

A

Origin: - Subscapular fossa
Insertion: - Lesser tubercle
Action:
- Internal rotation of shoulder
- Stabilizes glenohumeral joint
Nerve Supply:
- Upper subscapular nerve
- Lower subscapular nerve

41
Q

Origin of Deltoid (3)

A
  • Anterior deltoid – Lateral clavicle
  • Middle deltoid – Acromion
  • Posterior deltoid – Spine of scapula
42
Q

Insertion of Deltoid

A

Deltoid Tuberosity

43
Q

Actions of Deltoid (3)

A

Anterior deltoid:
- Flexion of shoulder
- Horizontal adduction of shoulder
- Internal rotation of shoulder

Middle deltoid:
- Abduction of shoulder

Posterior deltoid:
- Extension of shoulder
- Horizontal abduction of shoulder
- External rotation of shoulder

44
Q

Nerve Supply of Deltoid

A

Axillary Nerve

45
Q

OIAN of Deltoid

A

Origin:
- Anterior deltoid – Lateral clavicle
- Middle deltoid – Acromion
- Posterior deltoid – Spine of scapula

Insertion: - Deltoid tuberosity

Action:
Anterior deltoid:
- Flexion of shoulder
- Horizontal adduction of shoulder
- Internal rotation of shoulder
Middle deltoid:
- Abduction of shoulder
Posterior deltoid:
- Extension of shoulder
- Horizontal abduction of shoulder
- External rotation of shoulder

Nerve Supply: - Axillary nerve

46
Q

Origin of Teres Major

A
  • Inferior angle of scapula
  • Inferior axillary border of scapula
47
Q

Insertion of Teres Major

A

Medial Bicipital Groove

48
Q

Actions of Teres Major

A

Extension of shoulder
- Internal rotation of shoulder
- Adduction of shoulder

49
Q

Nerve Supply of Teres Major

A
  • Lower subscapular nerve
50
Q

OIAN of Teres Major

A

Origin:
- Inferior angle of scapula
- Inferior axillary border of scapula

Insertion: - Medial bicipital groove

Action:
- Extension of shoulder
- Internal rotation of shoulder
- Adduction of shoulder

Nerve Supply: - Lower subscapular nerve

51
Q

Origin of Brachioradialis

A

Supracondylar ridge of humerus

52
Q

Insertion of Brachioradialis

A

Styloid Process of radius

53
Q

Action of Brachioradiallis

A

Flexion of elbow with forearm in neutral position

54
Q

Nerve supply of Brachioradialis

A

Radial Nerve

55
Q

OIAN of Brachioradialis

A

Origin: - Supracondylar ridge of humerus
Insertion: - Styloid process of radius
Action: - Flexion of elbow with forearm in neutral position
Nerve Supply: - Radial nerve

56
Q

Anterior Muscles of Brachium

A

Biceps Brachii
Coracobrachialis
Brachialis

57
Q

Posterior Muscles

A

Triceps Brachii
- Long head
-lateral head
-medial head

58
Q

Borders and Contents of Triangular Space

A

Teres Major/Minor, Triceps Longhead

Content: circumflex scapular artery

59
Q

Borders and Contents of Quadrangular Space

A

Triceps Long Head, Teres Major/Minor, Neck of Humerus

Contents: Axillar nerve, posterior circumflex humeral artery

Anatomy (14 decks)

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