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Anatomy > Scapular & Pectoral Regions > Flashcards

Scapular & Pectoral Regions Flashcards

1
Q

Joints of the shoulder (3)

A

sternoclavicular
acromioclavicular
coracoclavicular

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2
Q

Scapula connects ___ to ____ between what ribs

A

Connects clavicle to humerus between 2nd to 7th

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3
Q

Muscles of pectoral girdle (6) (4 rotator)

A 
Deltoid
Teres major
Supraspinatus
Infraspinatus
Teres minor
Subscapularis
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4
Q

Deltoid Action (1 primary) (3 secondary)

A 
Abducts humerus (primary)
Flexes, extends and rotates humerus (secondary)
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5
Q

Deltoid Neurovasculature

A

Axillary n. (C5 C6)

Posterior Circumflex Humeral vessels

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6
Q

Teres Major Action (2)

A

Interally/medially rotates and extends humerus

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7
Q

Teres Major Neurovasculature

A

Lower (inferior) subscapular nerve (C5-C7)

Subscapular vessels

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8
Q

Supraspinatus Action (1)

A

Abducts humerus (initiates and continues action)

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9
Q

Supraspinatus Neurovasculature

A 
Suprascapular nerve (C5-C6)
Suprascapular vessels and (dorsal scapular vessels)
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10
Q

Infraspinatus Action (1)

A

Laterally (externally) rotates humerus

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11
Q

Infraspinatus Neurovasculature

A

Suprascapular nerve C5-C6

Suprascapular vessels subscapular vessels

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12
Q

Teres Minor Action (1)

A

Lateral (external) rotation of humerus

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13
Q

Teres Minor Neurovasculature

A 
Axillary Nerve (C5-C6)
Suprascapular vessels Subscapular vessels
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14
Q

Subscapularis Action (1)

A

Medial rotation of humerus

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15
Q

Subscapularis Neurovasculature

A

Upper and lower subscapular nerves

Subscapular vessels

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16
Q

Quadrangular space includes

A

Axillary Nerve

Posterior circumflex humeral artery

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17
Q

Triangular space includes

A

Circumflex scapular artery

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18
Q

Quadrangular space syndrome

A

disruption in space causing impingement on axillary nerve
Uncommonly: Weakness in deltoid
Common: atrophy of teres minor

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19
Q

Triangular space borders

A

Superior: teres minor
Inferior: teres major
Lateral: long head of triceps brachii

20
Q

Suprascapular n.
____Rami of ____
Runs (under/over) ______ and

A

Ventral rami of C5-C6

Runs under superior transverse scapular ligament through suprascapular notch

21
Q

Suprascapular artery
Branch of ______
Runs (under/over)____ ligament and ____

A

Branch of thyrocervical trunk

Runs over superior transverse scapular ligament above suprascapular notch

22
Q

Suprascapular n. and a.
pass thru ___ to ____ fossa
Supply _____ and _______

A

pass thru spinoglenoid notch to infraspinatus fossa

supply supraspinatus and infraspinatus

23
Q

Dorsal scapular nerve

____ Ramus of ___

A

Ventral ramus C5

24
Q

Dorsal scapular nerve
Deep transverse cervical artery
Run parallel to _____ border of _____
Supply ____ and ______

A

Run parallel to vertebral border of scapula

Supply levator scapulae and rhomboid muscles

25
Q

Accessory Nerve (CNXI)
Superficial Transverse cervical artery
Supply what muscle

A

Trapezius (also C3 C4)

26
Q

Superficial Transverse cervical artery
Branch of
Runs ____ to what muscle?

A

Branch of thyrocervical trunk

Runs deep to trapezius

27
Q

Upper and Lower subscapular nerve
_____ cord of _____ plexus
____ rami of ______

A

Posterior cord of brachial plexus

Ventral rami of C5-C6

28
Q

Subscapular Artery
Branch of ______
Splits into _______ and_______

A

Branch of Axillary artery

Splits into thoracodorsal and circumflex scapular

29
Q

Upper and lower subscapular n (C…)
Subscapular artery
Supply what muscle?

A

C5 C6 C7

Supply subscapularis

30
Q

Collateral circulation of scapular region by

A 
Thyrocervical trunk 
subscapular artery (blood flow reverses)
31
Q

Pectoralis major

Action

A

Adducts

medially rotates humerus

32
Q

Pectoralis major Neurovasculature

A

Medial and lateral pectoral nerves

Thoracoacromial vessels

33
Q

Pectoralis minor

Action

A

Protracts scapular

34
Q

Pectoralis minor

Neurovasculature

A

Medial pectoral nerve

Thoracoacromial vessels

35
Q

Pectoral region arterial supply (3)

A 
Lateral Thoracic (mammary)
Internal Thoracic (mammary)
Thoracoacromial
36
Q 
Lateral thoracic artery
Branch of \_\_\_\_\_
Runs with \_\_\_\_\_\_ nerve
Supplies \_\_\_\_ \_\_\_\_\_\_ \_\_\_\_\_\_
Relation to pec minor
A

Branch of axillary
Runs with long thoracic nerve
Supplies Lateral thorax, lateral pec, lateral breast
Deep to pec minor

37
Q

Internal thoracic artery
Branch of
Location
Supplies _____ _____ _____

A

Branch of subclavian artery
descends across intercostal space posterior to ribs
Supplies anterior thorax, medial pec region, medial breast

38
Q

Internal thoracic artery

Branches (4)

A

Musculophrenic
Superior epigastric
anterial intercostal
pericardiacophrenic

39
Q

Thoracoacromial artery

Branch of

A

Axillary artery

40
Q

Thoracoacromial artery

Branches (4)

A

Pectoral: upper pec
Clavicular: clavicle
Acromial: upper shoulder
Deltoid: lower shoulder

41
Q

Pectoral region innervation (4)

A

Cutaneous nerves
Median Pectoral Nerve
Lateral Pectoral Nerve
Long Thoracic Nerve

42
Q

Cutaneous Nerves
Type
Vertebral levels
Branches of ____

A

General sensory
T1-T6
Branches of Intercostal nerves

43
Q

Medial pectoral nerve
Derived from ____ rami (Vertebral levels)
_____ cord of ____ plexus
Supplies

A

Derived from ventral rami C8-T1
Medial cord of brachial plexus
Supplies pec minor and part of pec major
Runs through pec minor to enter pec major

44
Q

Lateral pectoral nerve
Derived from ____ rami (vertebral levels)
_____ cord of _____ plexus
Supplies

A

Derived from ventral rami C5-C7
Lateral cord of brachial plexus
Supplies remaineder of pec major
Runs above pec minor to enter pec major

45
Q

Long Thoracic nerve
Derived from _____ rami (vertebral levels)
Supplies
Damage can occur during___ resulting in_____

A

C5-C7
Supplies serratus anterior superficially
Damage can occur during mastectomy resulting in winged scapula

Anatomy (13 decks)

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