Elbow and radioulnar joints Flashcards

1
Q

What muscles are flexors of the elbow?

A

Brachialis
Biceps brachii
Coracobrachials
(BBC)

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2
Q

What muscles are extensors of the elbow

A

Triceps brachii

anconeus

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3
Q

What muscles control supination?

A

Supinator and biceps brachii

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4
Q

Describe supinator

A

O: lateral epicondyle of humerus
A: proximal 1/3 of radius
I: deep branch of radial nerve C7, 8

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5
Q

What is the origin of supinator?

A

lateral epicondyle of humerus

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6
Q

What is the attachment of supinator?

A

proximal 1/3 of radius

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7
Q

What is the innervation of supinator?

A

deep branch of radial nerve C7, 8

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8
Q

Describe pronator teres

A
O: ulnar head - coronoid process of ulna
 humeral head - medial epicondyle of humerus
A: lateral surface of radius 
I: median nerve C6,7
Fn: pronation
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9
Q

What is the origin of pronator teres?

A

ulnar head - coronoid process of ulna

humeral head - medial epicondyle of humerus

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10
Q

What is the attachment of pronator teres?

A

lateral surface of radius

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11
Q

What is the innervation of pronator teres?

A

median nerve C6,7

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12
Q

What is the function of pronator teres?

A

pronation

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13
Q

Describe anconeus

A

O: lateral epicondyle of humerus
A: lateral surface of olecranon + superior part of post surface of ulna
I: radial nerve C7, 8, T1
Fn: assists in extension of the elbow

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14
Q

What is the origin of anconeus

A

lateral epicondyle of humerus

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15
Q

What is the attachment of anconeus

A

lateral surface of olecranon + superior part of post surface of ulna

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16
Q

What is the innervation of anconeus

A

radial nerve C7,8 T1

17
Q

What is the function of anconeus?

A

assist in extension of the elbow