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UArk Master's Anatomy > Quiz 2 - Shoulder Anatomy > Flashcards

Quiz 2 - Shoulder Anatomy Flashcards

1
Q

What Cervical Disk(s) does the Dorsal Scapular Nerve off-shoot from?

A

C5

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2
Q

What Cervical Disk(s) does the Long Thoracic Nerve off-shoot from?

A

C5, 6, 7

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3
Q

What Cervical Disk(s) does the Phrenic Nerve off-shoot from?

A

C5

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4
Q

What Cord does the L Pec Nerve off-shoot from?

A

Lateral

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5
Q

What cord does the M Pec Nerve off-shoot from?

A

Medial

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6
Q

Roots

A

C5 - T1

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7
Q

Trunks

A

Superior, Middle, Inferior

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8
Q

Cords

A

Lateral, Posterior, Medial

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9
Q

Branches

A

Musculocutaneous, Median, Radial, Accessory, and Ulnar Nerves

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10
Q

C2 Dermatomes

A

Back of the head and the sides of the face

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11
Q

C3 Dermatomes

A

Upper part of the neck and bottom of the jaw

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12
Q

C4 Dermatomes

A

Lower part of the neck

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13
Q

C5 Dermatomes

A

Most of Anterior Shoulder as well as some upper trap

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14
Q

C6 Dermatomes

A

Radial side of the arm, thumb, and a portion of the superior shoulder

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15
Q

C7 Dermatomes

A

Posterior side of arm leading to both the anterior/posterior side of the 1st and 2nd fingers (pointer and middle)

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16
Q

C8 Dermatomes

A

Posterior side of arm going down the ulnar side leading to both the anterior/posterior side of the 3rd/4th fingers

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17
Q

T1 Dermatomes

A

Starts around the armpit going towards the midline as well as leading all the way down (splitting the anterior side of the middle arm with C5)

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18
Q

Elevators of the Scapular Muscle

A

Levator Scap, Rhomboids, Upper Trap

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19
Q

Depressors of the Scapular Muscle

A

Lat. Dorsi, Lower Trap, Pec Minor

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20
Q

Retractors of the Scapular Muscle

A

Lower Trap, Middle Trap, Rhomboids

21
Q

Upward Rotators of the Scapular Muscle

A

Serratus Anterior, Upper/Lower Trap

22
Q

Protractor of the Scapular Muscle

A

Serratus Anterior

23
Q

Clavical/Scapula

A

Supported by the AC joint, conjoined by supporting ligaments

24
Q

Lesser Tubercle

A

Attachment of the subscapularis

25
Q

Greater Tubercle

A

Finger breath down from acromion, attachment site of the supraspinatus, teres minor, and infraspinatus

26
Q

Suprascapular Notch

A

Holds Suprascapular N., innervates infraspinatus and supraspinatus muscles

27
Q

Supraspinous Fossa

A

Houses the supraspinatus

28
Q

Superior Angle

A

Attachment site of Levator scap

29
Q

Deltoid Tuberocity

A

Lies proximally about a third of the way to the elbow and provides an attachment point for the deltoid muscle

30
Q

Biceps Brachii

A

Action: Long head = abduction/Short Head = Adduction/Both = flexion and supination
Insertion: Radial tuberosity
Innervation: Musculocutaneous N. (C5-6)
Origin: Short head = Coracoid Process/Long head = Supraglenoid tubercle
“You walk shorter to the corner, ride longer on a superhighway”

31
Q

Brachialis

A

Action: Major flexor of the forearm
Insertion: Coronoid process and tuberosity of ulna
Innervation: Musculocutaneous N. (C5-6) and Radial N. (C7)
Origin: Distal half of the anterior surface of humerus

32
Q

Brachioradialis

A

Action: Forearm flexion
Insertion: Styloid Process of radius
Innervation: Radial N. (C7)
Origin: Lateral supracondylar ridge

33
Q

Anconeus

A

Action: Forearm extension
Insertion: Lateral surface of olecranon
Innervation: Radial N. (C7)
Origin: Lateral epicondyle of humerus

34
Q

Triceps

A

Action: Extension and Adduction
Insertion: Olecranon
Innervation: Radial N. (C7)
Origin: Long head = Infraglenoid tubercle/ Short and Medial Head = posterior surface of humerus

35
Q

Infraspinatus

A

Action: Arm ER, stabilization of humeral head
Insertion: Greater tubercle
Innervation: Suprascapular N (C5-6)
Origin: Infraspinous Fossa

36
Q

Supraspinatus

A

Action: Shoulder Abduction, stabilization of humeral head
Insertion: Greater Tubercle
Innervation: Suprascapular N. (C5-6)
Origin: Supraspinous fossa

37
Q

Teres Minor

A

Action: Arm ER, Adduction, Stabilize Humeral head
Insertion: Greater Tubercle
Innervation: Axillary N. (C5-6)
Origin: Lateral Border

38
Q

Teres Major

A

Action: Arm IR, extension, stabilize humeral head
Insertion: Intertubercular sulcus (medial lip) of humerus
Innervation: Subscapular N. (C5-7)
Origin: Inferior Angle

39
Q

Subscapularis

A

Action: Arm IR, Stabilize humeral head
Insertion: Lesser Tubercle
Innervation: Subscapular N. (C5-6)
Origin: Subscapular Fossa

40
Q

Pec Major

A

Action: Arm adduction, IR, Flexion, Extension
Insertion: Greater Tubercle
Innervation: Lateral and Medial Pec N. (C5-T1)
Origin: Anterior surface of clavicle or anterior surface of sternum

41
Q

Pec Minor

A

Action: Scapular depression
Insertion: Medial Border and Coracoid Process
Innervation: Medial and Lateral Pec N. (C5-T1)
Origin: Anterior surface

42
Q

Lat. Dorsi

A

Action: Arm IR, Adduction, Extension
Insertion: Intertubercular sulcus of humerus, “Lady between 2 majors” (Pec and Teres)
Innervation: Thoracodorsal N. (C6-8)
Origin: Inferior angle

43
Q

AC Joint (Acromioclavicular)

A

Keeps clavicle from popping up, different grades of AC Joint sprain. “Piano Key sign”

44
Q

Transverse Humeral

A

Hels keep long head of the biceps in the valley.

45
Q

GHJ Capsular Ligament

A

Support the joint from anteroinferior side, weak stabilizers but act to limit max amplitude of movement

46
Q

What 2 structures does the GHJ contain?

A

Inferior and Superior Labrum

47
Q

Why is the rotator cuff attached so proximal?

A

Attached close for support

48
Q

Arterial Flow

A

Artery Flow

Aortic Arch -> Subclavian Artery -> Axillary Artery -> Brachial Artery

UArk Master's Anatomy (4 decks)

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