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2MB MSK Anatomy > Arm > Flashcards

Arm Flashcards

1
Q

List the anterior muscles of the arm

A

Biceps brachii
Coracobrachialis
Brachialis

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2
Q

What is the origin + insertion of long head of biceps brachii?

A

Supraglenoid tubercle of scapula

Radial tuberosity

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3
Q

What is the origin + insertion of short head of biceps brachii?

A

Coracoid process of scapula

Radial tuberosity

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4
Q

What is the nerve + arterial supply to biceps brachii?

A

Musculocutaneous nerve

Brachial artery

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5
Q

Which movements does biceps brachii enable?

A

Elbow: flexion
Shoulder: flexion, abduction
Forearm: supination

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6
Q

What is the origin + insertion of coracobrachialis?

A

Coracoid process of scapula

Medial humerus

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7
Q

What is the nerve + arterial supply to coracobrachialis?

A

Musculocutaneous nerve

Brachial artery

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8
Q

Which movements does coracobrachialis enable?

A

Arm: adduction, flexion

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9
Q

What is the origin + insertion of brachialis?

A

Distal anterior humerus

Coronoid process of ulna

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10
Q

What is the nerve + arterial supply to brachialis?

A

Musculocutaneous nerve

Radial recurrent artery

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11
Q

Which movements does brachialis enable?

A

Elbow: flexion

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12
Q

Name the posterior muscle of the arm

A

Triceps brachii

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13
Q

What is the origin + insertion of long head of triceps brachii?

A

Infraglenoid tubercle of scapula

Triceps tendon

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14
Q

What is the origin + insertion of medial head of triceps brachii?

A

Inferior to radial sulcus

Triceps tendon

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15
Q

What is the origin + insertion of lateral head of triceps brachii?

A

Superior to radial sulcus

Triceps tendon

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16
Q

What is the nerve + arterial supply to triceps brachii?

A

Radial nerve

Deep brachial artery

17
Q

Which movements does triceps brachii enable?

A

Forearm: extension
Arm: extension, adduction
Shoulder: extension

18
Q

What is the main nerve supply to the anterior arm?

A

Musculocutaneous nerve

19
Q

What is the main nerve supply to the posterior arm?

A

Radial nerve

2MB MSK Anatomy (10 decks)

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