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Anatomy course (Back) > Shoulder, axilla, brachial plexus > Flashcards

Shoulder, axilla, brachial plexus Flashcards

1
Q

Cephalic vein runs here

A

Deltopectoral groove

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2
Q

Stabilizes the scapula, used when stretching upper limb forward to touch an object that is just out of reach.
Landmark for nerves, arteries in axilla

A

Pectoralis minor

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3
Q

Has a sternocostal head (Bigger) and a clavicular head

A

Pectoralis major

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4
Q

Keeps scapula close to thoracic wall

Anchors scapula and enables other muscles to use it as a fixed bone for movements of humerus

A

Serratus anterior

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5
Q

What are the 4 nerves that meet at Erbs point

A

Great auricular
Transverse cervical
Supraclavicular
Lesser occipital

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6
Q

What are the scapulohumeral muscles?

A

Deltoid, supraspinatus, infraspinatus, teres major/minor, subscapularis

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7
Q

Quadrangular space 4 borders?

A

Medial: Long head of the triceps
Lateral: Humeral shaft
Superior: Teres minor
Inferior:Teres Major

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8
Q

Contents of the quadrangular space?

A 
Axillary nerve (passes here on way to innervate teres minor and deltoid)
Posterior humeral circumflex artery
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9
Q

Triangular space 3 borders?

A

Inferior: Teres major
Superior: Teres minor
Lateral: Long head of triceps

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10
Q

Contents of the triangular space?

A

Scapular circumflex artery

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11
Q

Triceps hiatus 3 borders?

A

Superior: Teres major
Lateral: Lateral head of triceps or the humerus
Medial: Long head of triceps

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12
Q

Contents of the triangular hiatus?

A

Profunda brachii artery

Radial nerve

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13
Q

Characteristics of the AC joint

A

Plane synovial

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14
Q

Coracoclavicular
Trapezoid
Conoid ligament deal with what joint?

A

AC joint

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15
Q

Characteristics of Glenohumeral joint?

A

Ball and socket
Has more freedom and movement than any other joint in the body
Allows for movements around the three axes

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16
Q

Characteristics of the SC joint?

A

Saddle, but act like a ball and socket

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17
Q

Costoclavicular

interclavicular ligaments deal with what joint?

A

SC joint

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18
Q

What surrounds the SC joint?

A

Joint capsule

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19
Q

Large spherical humeral head articulates with the relatively small and shallow glenoid cavity of the scapula, which is deepened slightly by this ring like, fibrocartilage

A

Glenoid labrum

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20
Q

Anterior axio-appendicular muscles

  • What do they move
  • What muscles are included?
A

Move the pectoral girdle

Pec. major/ minor, subclavius, and serratus anterior

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21
Q

Posterior axio-appendicular muscles
Superficial?
Deep?

A

Superficial-trapezius and lats

Deep- Levator scapulae rhomboids

22
Q

Glenoid cavity only accepts a little more than what of the humeral head?
Humeral head is held in by?

A

A third

Rotator cuff

23
Q

The armpit is called?

A

The axilla

24
Q

Apex of axilla?

A

Made up of 1st rib, clavicle, superior levator scap

25
Q

Base of axilla?

A

fascia, skin (forms the armpit)

26
Q

Anterior wall of axilla?

A

Pectoralis major

27
Q

Posterior wall of axilla?

A

Scapula and subscapularis (anterior)

Inferiorly by lats and teres major

28
Q

Medial wall of axilla?

A

Thoracic wall, overlying serratus anterior

29
Q

Lateral wall of axilla?

A

Intertubecular sulcus of humerus

30
Q

Contents of the axilla?

A

Axillary vein/ artery, nerves cords and branches of brachial plexus, lymphatic vessels, and axillary lymph nodes

31
Q

Pectoralis minor, subclavius, omohyoid, tendon of the long head of the biceps are more muscles that are part of the?

A

Axilla

32
Q

The subclavian A/V becomes what at the 1st rib?

A

Axillary A/V

33
Q

The axillary goes where?

A

To the rotator cuff

34
Q

Lies initially (distally) on the anteromedial side of the axillary artery, with its terminal part antero-inferior to the artery?

A

Axillary vein

35
Q

Formed by the union of the accompanying brachialveins and the basilic vein at the inferior border of the teres minor.

A

Axillary vein

36
Q

What are more abundant than the arteries of the axilla?

They are what?

A

Veins of axilla

Highly variable and frequently anastomose

37
Q

Major network of nerves supplying the upper limb. Beings in the lateral cervical triangle and extends into the axilla?

A

Brachial plexus

38
Q

The brachial plexus is formed by the union of what?

A

Anterior rami of the C5-T1 nerves

39
Q

The roots of the brachial plexus usually pass through?

A

The anterior and middle scalenes. Near subclavian artery

40
Q

Superior trunk of Brachial plexus?

A

Formed by the union of C5 and C6 roots

41
Q

Middle trunk of Brachial plexus?

A

Formed by the continuation of the C7 root

42
Q

Inferior trunk of Brachial plexus?

A

Formed by the union of the C8 and T1 roots

43
Q

5 roots of brachial plexus?

A

C5,6,7,8 and T1

44
Q

3 trunks of brachial plexus?

A

Superior- Suprascapular nerve and the subclavian nerve
Middle
Inferior

45
Q

How many anterior and posterior divisions in the brachial plexus?

A

3 anterior

3 posterior

46
Q

3 cords around axillary artery?

A

Lateral- Lateral pectoral nerve
Posterior- Upper subscapular nerve, Thoracodorsal nerve, lower subscapular nerve
Medial- Medial pectoral nerve, medial cutaneous nerve of arm, medial cutaneous nerve of forearm

47
Q

Terminal branches of brachial plexus?

A 
Musculotaneous nerve
Axillary nerve
Median nerve
Radial nerve
Ulnar nerve
48
Q

Transverse humeral ligament
CoraCoacromial ligament
Cora-Acromial Arch

A

Part of glenohumeral ligament

49
Q

First part of Axillary artery and vein?

Branches?

A

Between lateral border of 1st rib and medial border of pec. minor
Branches- superior thoracic artery

50
Q

Second part of Axillary artery and vein?

Branches?

A

Posterior to pec. minor
Branches- Thoracoacromial
Deltoid, acromial, pectoral, clavicular
Lateral thoracic artery

51
Q

Third part of axillary artery and vein?

Branches?

A

Lateral border of pec minor to inferior border of teres major
Branches- Subscapular artery
Thoracodorsal
scapular circumflex
Posterior/ Anterior circumflex humeral artery

Anatomy course (Back) (11 decks)

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