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Anatomy II > Upper Limb - Elbow Joint > Flashcards

Upper Limb - Elbow Joint Flashcards

1
Q

What type of joint is the elbow joint?

A

Synovial hinge joint

hyaline cartilage lined articular surfaces

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2
Q

What is the Humeroulnar articulation?

A

Trochlea of humerus + Trochlea of ulna

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3
Q

What is the humeroradial articulation?

A

Capitulum of humerus + head of radius

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4
Q

What bony structures limit extension at the elbow?

A

Olecranon fossa of humerus receives olecranon process of the ulna

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5
Q

What are the main ligaments of the elbow joint? (4)

A

1) Ulnar collateral ligament (medial)
2) Radial collateral ligament (lateral)
3) Angular ligament
4) Quadrate ligament (radius + ulna)

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6
Q

What is the blood supply of the Elbow joint?

A

Anastomoses of brachial artery

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7
Q

Blood drainage of elbow joint?

A

Radial ulnar and brachial veins

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8
Q

Lymph drainage of elbow joint?

A

Deep cubical nodes at the brachial artery + lateral group of axillary nodes

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9
Q

Innervation of the Elbow joint? (4)

A 
Musculocutaneous Nerve 
Median Nerve
Ulnar Nerve
Radial Nerve
(C5,C6,C7,C8)
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10
Q

Average Carrying angle of elbow joint ?(men vs woman)

A 
Men = 10-15
Woman = 20-25
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11
Q

Flexion of elbow joint?

Extension fo elbow joint?

A 
Flexion = biceps, brachialis, brachioradialis 
Extension= triceps + anconeus
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12
Q

What are the articulating surfaces of the radioulnar joint? (Joint type)

A

Synovial pivot joint + interosseous membrane

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13
Q

Ligaments of the proximal radioulnar joint? (3)

A

Annular ligament
Quadratus Ligament
Interosseous membrane

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14
Q

Blood supply of radioulnar joint (proximal/distal)

A

Proximal: anastomoses of brachial artery
Distal: anterior/posterior interosseous arteries + dorsal palmar carpal network

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15
Q

Blood drainage of of proximal/distal radioulnar joints?

A

Proximal: Brachial Vein
Distal: accompanying veins of arteries

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16
Q

Innervation of proximal/distal radioulnar joints?

A 
Proximal: posterior interosseous branch of radial nerve 
Musculocutaneous nerve 
Median nerve (C5,C6,C7)

Distal: Anterior and posterior interosseous nerves (C7,C8)

17
Q

What type of joint is distal radioulnar joint ?

A

Synovial plane joint

Anatomy II (7 decks)

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