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Anatomy Exam 4 > Axilla and Breasty > Flashcards

Axilla and Breasty Flashcards

1
Q

What is the axilla?

A

deep compartment of the armpit

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2
Q

Where is the axillary region located ?

A

inferior to the glenohumeral joint and the junction of the arm and the thorax

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3
Q

What is the axilla an important passageway for?

A

neurovascular structures

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4
Q

What is the medial border of the axilla?

A

sternum and ribs

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5
Q

What is the lateral border of the axilla?

A

the humerus

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6
Q

What is the superior border of the axilla?

A

clavicle

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7
Q

What is the posterior border of the axilla?

A

the scapula

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8
Q

What is the superficial fascia of the pectoral region?

A

subcutaneous
-fatty

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9
Q

What is the deep fascia of the pectoral region?

A

compartmentalizing
surrounds muscle
attaches to bonemost of the time

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10
Q

What is the platysma muscle?

A

muscle over lower mandible, neck, and upper thoracic/shoulder region
-very superficial skeletal muscle that is mostly subcutaneous

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11
Q

What are the types of fascia seen in the axillary region?

A

deltoid fascia, pectoral fascia, axillary fascia

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12
Q

What is included in the superficial fascia of axillary region?

A

-skin and subcutaneous fatty tissue
-platymus muscle
-supraclavicular nerves
-anterior and lateral branches of intercostal nerves

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13
Q

Where does the pectoral fascia attach?

A

clavicle and sternum

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14
Q

What does the axillary fascia form?

A

the floor of the axilla

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15
Q

What does the clavipectoral fascia cover?

A

subclavius and pectoralis minor

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16
Q

What separates the subclavius and pectoralis minor?

A

costocoracoid membrane

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17
Q

What does the deltoid fascia cover?

A

all of the scapular muscles

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18
Q

What are the borders of the clavipectoral triangle?

A

deltoid, pectoralis major, and middle 1/3 of clavicle

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19
Q

What are the contents of the claviapectoral triangle?

A

cephalic vein, deltopectoral lymph nodes, deltoid, and branch of thoracoacromial artery

20
Q

Border of the anterior wall of the axilla?

A

anterior axillary fold

21
Q

Border of the posterior wall of the axilla?

A

posterior axillary fold

22
Q

What muscle makes up the anterior axillary fold?

A

the pectorlais major

23
Q

What muscle makes up the posterior axillary fold?

A

latissimus dorsi
-possibly teres major

24
Q

What is within the apex of the axilla?

A

the cervicoaxillary canal

25
Q

What is the cervicoaxillary canal?

A

passage way for neurovascular structures
(axillary vessels and brachial plexus components)

26
Q

What are the boundaries for the apex of the axilla?

A

clavicle
scapula
1st rib

27
Q

What are the boundaries of the base of the axilla?

A

-skin and superficial fascia
-anterior axillary fold
-posterior axillary fold
-chest wall

28
Q

What are the borders of the anterior wall of the axilla?

A

-clavicle
-subclavius muscle
-pectoralis major
-pectoralis minor

29
Q

What makes up the posterior border of the axilla?

A

-scapula
-subscapularis muscle
-latissimus dorsi
-teres major

30
Q

What makes up the lateral wall of the axilla?

A

-interterubercular sulcus
-tendon of long head of bicep
-coracobrachialis tendon
-sometimes the humerus?

31
Q

What makes up the medial wall of the axilla?

A

ribs and serratus anterior

32
Q

What are the contents of the axillary sheath?

A

-axillary vein
-axillary artery
-brachial plexus

33
Q

What are the lymphnodes in the axillary region?

A

axillary lymphnodes

34
Q

What is the axilla sheath?

A

separate fascia compartment of the axilla
-extension of the prevertebral layer of deep cervical fascia into the cervicoaxillary canal

35
Q

What is the axillary artery?

A

continuation of the subclavian artery
-provide blood to the shoulder, thorax, and axillary region

36
Q

What is the axillary vein?

A

formed by the coming together of the brachial veins and the basilic vein

37
Q

What joins with the axillary vein to become the subclavian vein?

A

cephalic vein

38
Q

What does the axillary artery become?

A

brachial artery

39
Q

What does the brachial plexus innervate?

A

shoulder, pectoral region, scapular region, and upper limb

40
Q

What part of the nerves are found in the axillary sheath?

A

the cords of the brachial plexus

41
Q

What are the five groups of axillary lymphnodes?

A

-pectoral
-subscapular
-humeral
-central
-apical

42
Q

Where are the pectoral lymphnodes?

A

medial wall of axilla

43
Q

Where are the subscapular lymphnodes?

A

posterior axillary fold

44
Q

Where are the humeral lymphnodes?

A

lateral wall of axilla

45
Q

Where are the central lymphnodes?

A

base of axilla

46
Q

Where are the apical lymphnodes ?

Anatomy Exam 4 (8 decks)

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