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Anatomy > Arm > Flashcards

Arm Flashcards

1
Q

Articulation between the humerus (trochlea) and and ulna (trochlear notch).

A

Humeroulnar joint.

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2
Q

Articulation between the humerus (capitulum) and the radius (head).

A

Humeroradial joint.

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3
Q

Articulation between the radius (head) and ulna (radial notch).

A

Proximal radioulnar joint.

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4
Q

A two-headed muscle (long and short head) located superficially in the anterior compartment of the arm.

A

Biceps Brachii.

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5
Q

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

A

Supraglenoid tubercle.

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6
Q

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

A

Coracoid process.

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7
Q

What is the insertion of the biceps brachii?

A

Radial tuberosity (radius).

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8
Q

What are the actions of the biceps brachii?

A

Flexion of the glenohumeral joint/elbow and aids in supination of the radioulnar joint.

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9
Q

What innervates the biceps brachii?

A

Musculocutaneous nerve. (C5-C7).

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10
Q

Located deep to the biceps brachii muscle?

A

Brachialis.

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11
Q

What is the origin of brachialis?

A

Humeral midshaft.

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12
Q

What is the insertion of brachialis?

A

Ulna.

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13
Q

What is the action of brachialis?

A

Flexion of the glenohumeral joint/elbow.

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14
Q

What innervates the brachialis?

A

Musculocutaneous (C5-C6) and Radial (C7) nerve.

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15
Q

Located adjacent to the short head of the biceps brachii muscle.

A

Coracobrachialis.

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16
Q

What is the origin of the coracobrachialis?

A

Coracoid process.

17
Q

What is the insertion of the coracobrachialis?

A

Humerus (midshaft).

18
Q

What are the actions of the coracobrachialis?

A

Glenohumeral joint flexion.

19
Q

What innervates the coracobrachialis?

A

Musculocutaneous nerve (C5-C7).

20
Q

A three-headed muscle (long, lateral, and medial) located superficially in the posterior compartment of the arm.

A

Triceps Brachii.

21
Q

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

A

Infraglenoid tubercle.

22
Q

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

A

Posterior humerus.

23
Q

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

A

Posterior humerus.

24
Q

What is the insertion of the triceps brachii?

A

Olecranon process (ulna).

25
Q

What is the action of the triceps brachii?

A

Extension of the glenohumeral joint/elbow.

26
Q

What innervates the triceps brachii.

A

Radial nerve (C5-C7).

Anatomy (60 decks)

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