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Anatomy UE > Shoulder Pectoral Region > Flashcards

Shoulder Pectoral Region Flashcards

1
Q

Which fascia superiorly attaches to the clavicle and sternum and is continuous inferiorly with the fascia of the anterior abdominal wall

A

Pectoral Fascia

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2
Q

Pectoral fascia will invest into which muscle?

A

Invests into the pectoralis major m.

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3
Q

Axillary fascia is a continuation of _____ fascia laterally.

A

Pectoral fascia

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4
Q

Which fascia will form the floor of the axilla?

A

Axillary fascia

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5
Q

Which fascia is deep to pectoralis major muscle?

A

Clavipectoral fascia

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6
Q

Clavipectoral fascia will decscend from clavicle and encloses ___ m. and ___ m.

A

Subclavius m. and pectoralis minor m.

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7
Q

Which fascia extend inferior to pectoralis minor becomes suspensory ligament of the axilla?

A

Clavipectoral fascia

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8
Q

Which fascia pulls the skin of the axilla superiorly with shoulder abduction

A

Clavipectoral fascia

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9
Q

What fascia covers the superficial surface of the deltoid m.?

A

Deltoid facia

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10
Q

Deltoid fascia is continuous with the pectoral fascia _____ and with the infraspinous fascia _____.

A

Anteriorly; posteriorly

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11
Q

Which fascia descends from the spine of the scapula and covers the infraspinatus m.?

A

Infraspinous fascia

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12
Q

Which fascia ascends from the spine of the scapula to cover the supraspinatus m.?

A

Supraspinous fascia

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13
Q

Are cutaneous nerves part of the brachial plexus?

A

No!

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14
Q

Which cutaneous nerve supplies skin over the clavicle, and superolateral part of pectoralis major m.?

A

Supraclavicular Nerve (C3-C4)

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15
Q

Superior Lateral Brachial Cutaneous Nerve (C5-C6) is a cutaneous branch of which nerve?

A

Axillary n.

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16
Q

Which cutaneous nerve supplies skin over the deltoid m.?

A

Superior Lateral Brachial Cutaneous Nerve (C5-C6)

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17
Q

What are the 5 muscles that connect the upper extremity to the spine?

A
  • Trapezius
  • Latissimus dorsi
  • Rhomboid major
  • Rhomboid minor
  • Levator scapulae
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18
Q

What 4 muscles will connect the upper extremity to the anterior thoracic wall?

A
  • Pectoralis major
  • Pectoralis minor
  • Subclavius
  • Serratus anterior
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19
Q

What are the 6 muscles that originate from the scapula?

A
  • Deltoid
  • Subscapularis
  • Supraspinatus
  • Infraspinatus
  • Teres minor
  • Teres major
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20
Q

Pectoralis major muscle is a large fan-shaped muscle that covers most of the _____wall, anterior wall of _____, anterior _____.

A

Anterior thoracic wall; Axilla; Axillary fold

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21
Q

What are the two heads of pectoralis major m.?

A

Clavicular head and sternocostal head.

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22
Q

Can each pectoralis major m’s head act independently?

A

Yes!

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23
Q

Independently, the clavicular head by itself can _____.

A

Help flex the humerus

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24
Q

Independently, the sternocostal head by itself will _____.

A

Help extend an already flexed humerus

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25
When abducting arm at 90 degrees and horizontally adduct against resistance, you are checking which head of the pectoralis major m.?
Clavicular head
26
When abduct arm to 60º and horizontally adduct against resistance, you are checking which head of the pectoralis major m.?
Sternocostal head
27
This muscle is an important landmark in axilla.
Pectoralis minor m.
28
Pectoralis minor m. with the_____ it forms a tunnel for the nerves and vessels of the UE
Coracoid process
29
Which muscle protects subclavian a. when clavicle fractures?
Subclavius m.
30
Which muscle covers the lateral portion of the thoracic cage, medial wall of axilla?
Serratus anterior m.
31
Which muscle is referred to as the “boxer’s muscle”-punching?
Serratus anterior m.
32
Serratus anterior m. is a primary _____ of the scapula.
Stabilizer
33
What are the 3 parts of the deltoid muscle?
Anterior, Posterior and Middle
34
Which part(s) of the deltoid muscle is unipennate?
Anterior and posterior part
35
Which part of the deltoid muscle is multipennate?
Middle part
36
Because of the _____ of deltoid it cannot initiate abduction of the humerus.
Pull (Ant, Mid, Post). Doesn't have a lateral head.
37
What are the rotator cuff muscles?
``` (SITS): Supraspinatus Infraspinatus Teres minor Subscapularis ```
38
The tendons of the SITS mm. blend with the _____, thus strengthening the capsule
Glenohumeral capsule
39
SITS mm. also help to hold the _____ in the shallow glenoid cavity. Strengthens the joint while still allowing a large amount of motion.
Head of the humerus
40
Supraspinatus m. also acts strongly to prevent _____ of the humerus under loads.
Downward displacement
41
_____ m. most frequently diseased or torn concerning the rotator cuff injury.
Supraspinatus m.
42
Test for injury/disease: from 90 degree abduction, lower limb. Uncontrolled drop indicates damage. This is testing for what injury?
Rotator cuff injury
43
What are the borders of quadrangular space?
Teres minor superiorly Teres major inferiorly Humerus laterally Long head of triceps brachii medially
44
What structures are exiting the quadrangular space?
-Axillary nerve (C5-C6) which innervates teres minor and deltoid mm. -Posterior circumflex humeral artery Branch of the axillary artery.
45
What are the borders of the triangular space?
Teres minor superiorly Teres major inferiorly Long head of triceps brachii laterally
46
What are the contents that are running WITHIN the triangular space (does not pierce or exit the space)?
Circumflex scapular artery
47
Circumflex scapular artery is a branch off the _____ a.
Subscapular a.
48
What are the borders of the triangular interval?
- Superior by teres major - Lateral by the lateral head of triceps brachii m. - Medial by the long head of triceps brachii m.
49
Extending across the floor of the triangular interval is the _____ and _____
Radial nerve and the deep brachial artery
50
Axillary region is a pyramid-shaped space inferior to the _____ joint and superior to the _____.
Glenohumeral joint; axillary fascia
51
The _____ serves as a protected passageway for the neurovascular structures from the neck to the upper limb.
Axilla
52
Axilla has an ___, ___, and ___ walls.
Apex, base, and four walls (three of which are muscular)
53
Apex is the _____ canal.
Cervicoaxillary canal
54
The_____ (Apex) is bounded by the 1st rib, clavicle, and superior edge of the scapula.
Cervicoaxillary canal
55
The_____ (of the axilla) is formed by the concave skin, subcutaneous tissue, and axillary fascia?
Base
56
The base of axilla forms the _____.
Axillary fossa (armpit)
57
The _____ (of the axilla) is formed by the pectoralis major and minor mm along with the pectoral and clavipectoral fasciae
Anterior wall of the axillary
58
The _____ (of the axilla) is formed by the scapula and the subscapularis muscle.
Posterior wall
59
The _____ (of the axilla) is formed by the thoracic wall, 1st-4th ribs. Serratus anterior covers the ribs.
Medial wall
60
The _____ (of the axilla) is formed by the intertubercular groove of the humerus.
Lateral wall
61
Axillary artery is the continuation of the _____.
Subclavian artery
62
Axillary artery begins at the lateral border of the 1st rib and extends to the inferior border of _____.
Teres major m.
63
Axillary artery passes deep to _____ muscle.
Pectoralis minor muscle
64
Axillary artery continues down the arm as the _____.
Brachial artery
65
Axillary artery becomes brachial artery after passing _____.
Inferior border of teres major m.
66
The artery is divided into 3 parts, | what is the point of reference?
Pectoralis minor m.
67
The first part of divided axillary artery is proximal to pectoralis minor m., but distal to the _____.
1st rib
68
The second part of divided axillary artery is is under _____.
Pectoralis minor m.
69
The second part of divided axillary artery is _____ to pectoralis minor m.
Distal
70
First part of the axillary artery extends from 1st rib to _____ border of pectoralis minor.
Proximal
71
First part of the axillary artery has one branch; _____.
Supreme thoracic artery
72
What artery supplies the subclavius m., superior slips of serratus anterior m., and some of the overlying pectoralis mm.?
Supreme thoracic artery
73
Second part of the axillary artery has 2 branches:
``` Thoracoacromial artery (Has 4 branches) Lateral thoracic artery ```
74
What are the 4 branches of thoracoacromial a?
``` (CAPD) Clavicular Acromial Pectoral Deltoid ```
75
Third part of the axillary artery has 3 branches:
Subscapular, anterior circumflex humeral, and posterior circumflex humeral arteries
76
Subscapular artery descends along the ___ border of subscapularis m.
Lateral
77
Subscapular artery will branch into two arteries:
- Circumflex scapular artery (triangular space) | - Thoracodorsal artery
78
Anterior circumflex humeral artery runs laterally deep to the coracobrachialis m. and the _____.
Biceps brachii m.
79
Posterior circumflex humeral artery passes medial to the humerus where it pierces the _____ space to perfuse the deltoid, teres minor, teres major, and long head of triceps brachii
Quadrangular space
80
Both ant. and post. circumflex humeral arteries encircle the _____ of the humerus and anastomose with each other.
Surgical neck

Anatomy UE (10 decks)

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