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Human Anatomy 2 > Upper Limbs > Flashcards

Upper Limbs Flashcards

1
Q

what movements occur at the sternoclavicular joint?

A
  1. elevation
  2. depression
  3. protraction
  4. retraction
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2
Q

What type of shoulder dislocation is more common? why?

A

Inferior dislocation is more common
- coracoacromial ligament protects superior aspect of joint

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3
Q

Which rotator cuff muscle does not insert at the greater tubercle of the humerus

A

subscapularis - inserts at lesser tubercle

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4
Q

Teres minor: origin, insertion, action

A

Origin: lateral border of scapula

Insertion: greater tubercle of humerus

Action: external rotation

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5
Q

Teres major: origin, insertion, action

A

Origin: lateral border of scapula

Insertion: humerus – intertubercular sulcus*

Action: adduction, extension, internal rotation

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6
Q

Supraspinatus: origin, insertion, action

A

Origin: supraspinous fossa

Insertion: greater tubercle

Action: 0-15 degrees adduction

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7
Q

Infraspinatus: origin, insertion, action

A

Origin: infraspinous fossa

Insertion: greater tubercle

Action: external rotation

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8
Q

subscapularis: origin, insertion, action

A

Origin: subscapular fossa

Insertion: lesser tubercle

Action: internal rotation

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9
Q

Biceps brachii (long & short head): origin, insertion, action

A

Origin: NOTE: SKIPS HUMERUS
— Short: coracoid process of scap.
— Long: supraglenoid tubercle* of scap.

Insertion: radial tuberoisty & biciptal aponeurosis

Action: flexion of elbow & shoulder joint

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10
Q

Coracobrachialis: origin, insertion, action

A

Origin: coracoid process

Insertion: humeral midshaft

Action: shoulder adduction & flexion

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11
Q

Brachialis: origin, insertion, action

A

Origin: distal anterior humerus

Insertion: ulnar tuberosity

Action: prime elbow flexor

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12
Q

Superficial anterior forearm muscles mnemonic

A

Pass, Fail, Pass, Fail

Pass - Pronator teres
Fail - Flexor carpi radialis
Pass - Palmaris longus
Fail - Flexor carpi ulnaris

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13
Q

Ulnar nerve motor supply

A

Forearm:
- Flexor carpi ulnaris
- Medial 1/2 of flexor digitorum profundus

Hand:
- All except LOAF

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14
Q

Superficial posterior forearm muscles mnemonic

A

Beer Lifting, Break Dancing Muscles Unless Atrophied

Beer - Brachioradialis
Lifting - Extensor carpi radialis Longus
Break - Extensor carpi radialis Brevis
Dancing - Extensor Digitorum
Muscles - Extensor digiti Minimi
Unless - Extensor carpi ulnaris
Atrophied - Aconeus

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15
Q

Flexor carpi radialis: origin, insertion, action

A

Origin - medial epicondyle
Insertion: base of 2nd + 3rd metacarpal
Action: wrist flexion & abduction

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16
Q

Where does the forearm common flexor tendon originate from?

A

Medial epicondyle of humerus

17
Q

Palmaris longus: origin, insertion, action

A

Origin: medial epicondyle
Insertion: palmar aponeurosis
Action: wrist flexion

18
Q

Flexor carpi ulnaris: origin, insertion, action

A

Origin: medial epicondyle of humerus & olecranon process of ulna
Insertion: pisiform, hamate, 5th metacarpal
Action: wrist flexion & adduction

19
Q

Flexor digitorum superficialis: action

A

proximal phalanx flexion
wrist flexion

20
Q

Median nerve innvervations

A

Motor:
Forearm:
* All forearm FLEXORS not supplied by ulnar nerve

Hand:
* LOAF

Sensory:
- lateral 3 1/2 fingers
- lateral 2/3 palm
- palmar cutaneous branch supplies lateral palmar skin

20
Q

Flexor digitorum profundus: action

A

distal phalanx flexion

21
Q

Ulnar nerve innervations

A

Motor supply:
Forearm:
* flexor carpi ulnaris
* medial 1/2 of flexor digitorum profundus

Hand:
* All intrinsic hand muscles except LOAF

Sensory:
- medial 1 1/2 of fingers
- medial 1/3 of palm

22
Q

Is the biceps brachii long head lateral or medial?

A

Lateral - Long head

23
Q

Triceps brachii insertion

A

olecranon process

24
Q

What nerve innervates the biceps brachii, coracobrachialis, and brachialis?

A

Musculocutaneous n.

25
Q

What does the axillary nerve innervate

A

Deltoid
Terra minor

26
Q

veins of the upper limb

A

Note: veins start distal
* Subclavian
* Axillary (>1st rib)
* Basilic & cephalic
* Median cubital**

27
Q

What nerve innervates the serratus anterior?

A

Long thoracic n.

28
Q

lat. dorsi innervation + function

A

Thoracodorsal n.
Shoulder adduction, IR

Human Anatomy 2 (7 decks)

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