Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Exam 3- Anatomy > Axilla and Pectoral Region > Flashcards

Axilla and Pectoral Region Flashcards

1
Q

osteological structures of pectoral region

A 
clavicles 
sternum 
ribs 
scapula 
humerus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

three parts of the sternum

A

manubrium
body
xiphoid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

where do the ribs articulate?

A

thoracic vertebrae and some sternum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

which ribs are atypical?

A

1, 2, 11, 12

1 and 2 are shorter than regular ribs and 11 and 12 are floating

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

which ribs are the true ribs?

A

1-7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

which ribs are false ribs?

A

8-10

they merge with the cartilage of 7 then merge with sternum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

point to your jugular notch

A

on sternum, top middle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

sternal angle

A

where the second rib attaches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

bilateral glandular structures found in both males and females

A

breast

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

modified sweat glands of the breast are called

A

mammary glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

where does the breast rest?

A

on the pectoral fascia (above the pectoralis major)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

potential space between breast and pectoral fascia is the

A

retromammary space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what nerves innervate the breast?

A

4th-6th intercostal nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what attaches the breast tissue to the dermis of the skin?

A

suspensory ligaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

where do the mammary gland lobules converge?

A

the nipple

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what arteries supply the breasts?

A

mammary branches from anterior intercostal, lateral thoracic and internal thoracic arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what veins drain the breast?

A

axillary vein via thoracic vein and medial mammary veins

some drainage to internal thoracic vein via intercostal veins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

why is lymphatic drainage of the breast particularly clinically relevant?

A

due to high amounts of breast cancers and its role in their metastasis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what lymphatic drainage is used for the nipple. areola, and lactiferous lobules?

A

subareolar lymph nodes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

greater than 75% of lymph from the breast is drained by what?

A

axillary lymph nodes (pectoral, central, apical)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what drains the remaining lymph (last 25%) of the breast?

A

parasternal and abdominal lymph nodes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

what innervation exists at the breast tissue?

A

anterior and lateral branches of 4-6th intercostal nerves

also some supraclavicular nerve branches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

what does the fascia of the pectoral region consist of?

A

superficial and deep layers that define borders, invest muscles and create potential spaces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

superficial fascia of the pectoral region is composted of

A

platysma
supraclavicular nerves
anterior and lateral branches of intercostal nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

what composes the deltopectoral triangle?

A

deltoid, pectoralis major, and middle clavicle
cephalic vein
deltopectoral lymph nodes
deltoid branch of thoracoacromial artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

what’s the function of the clavipectoral fascia?

A

invests subclavius and pectoralis major
attaches clavicle and anterior thoracic wall
perched by lateral pectoral nerves, cephalic vein, and thoracoacromial artery
becomes suspensory ligament of axilla

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

what are the muscles of the pectoral region?

A

pectoralis major
subclavius
pectoralis major
serratus anterior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

proximal attachments of pectoralis major

A

clavicular and sternocostal attachment

anterior surface of medial 1/2 of clavicle
ant. surface of sternum and superior 6 costal cartilages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

distal attachment of pectoralis major

A

lateral lip of intertuburcular sulcus

30
Q

actions of pectoralis major

A

adducts and medial rotation of humerus
draws scapula anteriorly and inferiorly (via clavicle)
flexes humerus (clavicular portion)
sternal person extended humors while it is flexed

31
Q

blood supply of pectoralis major

A

pectoral branch of throacoacromial arterial trunk

32
Q

innervation of pectoralis major

A

lateral and medial pectoral nerves (C5, C6 clavicular portion, C7, C8, T1 sternocostal portion)

33
Q

origin of pectoralis minor

A

3rd-5th ribs, near costal cartilage

34
Q

insertion of pectoralis minor

A

coracoid process of scapula

35
Q

actions of pectoralis minor

A

stabilizes scapula by pulling it anteriorly and inferably against posterior thoracic wall

36
Q

blood supply of pectoralis minor

A

pectoral branches of thoracoacromial arterial trunk

37
Q

innervation of pectoralis minor

A

medial pectoral nerve (C8, T1)

38
Q

origin of subclavius

A

junction of 1st rib and its costal cartilage

39
Q

insertion of subclavius

A

inferior surface of middle 1/3 of clavicle

40
Q

actions of subclavius

A

anchors and depresses clavicle

41
Q

blood supply of subclavius

A

clavicular branches of throacoacromial arterial trunk

42
Q

innervation of subclavius

A

nerve to subclavius (C5, C6)

43
Q

origin of serratus anterior

A

external surfaces of lateral parts of ribs 1-9

44
Q

insertion of serratus anterior

A

anterior surface of medial border of scapula

45
Q

actions of serratus anterior

A

protracts scapula
rotates scapula
holds scapula against thorax

46
Q

blood supply of serratus anterior

A

lateral thoracic artery

47
Q

innervation of serratus anterior

A

long thoracic nerve (C5, C6, C7)

48
Q

arteries of the pectoral shoulder and axillary regions

A

subclavian artery and axillary artery

49
Q

origin of subclavian artery

A

brachiocephalic trunk and aortic arch

50
Q

where does the subclavian artery arise?

A

posterior to sternocalvicular joint

51
Q

3 divisions of subclavian artery

A
  1. medial to anterior scalene muscle
  2. posterior to anterior scalene muscle
  3. lateral to anterior scalene muscle
52
Q

branches of medial part of subclavian artery

A

internal thoracic (mammary) artery
vertebral artery
thyrocervical arterial trunk

53
Q

branches of the thyrocervical arterial trunk

A

transverse cervical artery (superficial and deep branches)
inferior thyroid artery
ascending cervical artery
supra scapular artery

54
Q

cervicodorsal tunk

A

when the superficial and deep branches of transverse cervical arteries form an arterial trunk

55
Q

branches of posterior part of subclavian artery

A

costocervical arterial trunk composed of supreme intercostal artery and deep cervical artery

56
Q

Origin (arises from) dorsal scapular artery

A

May arise independently from the lateral part of the subclavian artery or from the transverse cervical artery of posterior part

57
Q

where does the subclavian become the axillary artery?

A

lateral border of first rib

58
Q

part 1 of axillary artery

A

super thoracic artery

59
Q

part 2 of axillary artery

A

thoracoacromial trunk

60
Q

part 3 of axillary artery

A

sub scapular artery
anterior circumflex humeral
posterior circumflex humeral

61
Q

branches of thoracoacromial trunk of axillary artery

A

pectoral branch, deltoid branch, acormial branch, clavicular branch

62
Q

branches of the sub scapular artery of the axillary artery

A

circumflex scapular

thoracic dorsal

63
Q

anastomoses of the arterial branches in pectoral region

A 
supra scapular artery
dorsal scapular artery 
posterior intercostal arteries
circumflex scapular arteries
thoracodorsal artery
64
Q

axillary vein

A

drains the pectoral and axillary region, follows axillary artery, received blood from superficial and deep veins of arm and forearm

65
Q

branches of the axillary vein

A

deep brachial veins

superficial veins of arm and forearm

66
Q

superficial veins of arm or forearm

A 
basilic veins (continue to axillary)
cephalic veins (drain to axillary before becoming subclavian)
67
Q

boundaries of axilla at apex

A

clavicle
scapula
1st rib

68
Q

boundaries of axilla at base

A

skin and superficial fascia
anterior axillary fold (pec. major)
posterior axillary fold (lats, teres major)
chest wall (serratus anterior)

69
Q

boundaries of axilla at anterior wall

A

(clavicle) (subclavius) pectoralis major pectoralis minor

70
Q

boundaries of axilla at posterior wall

A

scapula
subscapularis
latissimus dorsi
teres major

71
Q

boundaries of axilla laterally

A

inter tubercular sulcus
tendon of long head of biceps
coracobrachialis tendon

72
Q

3 contents of the axilla

A

axillary vein
axillary artery
brachial plexus

Exam 3- Anatomy (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions