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Anat 1 > axilla lateral cervical triangle > Flashcards

axilla lateral cervical triangle Flashcards

1
Q

the pectoral region osteology:

A

clavicles
sternum
ribs
scapula

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2
Q

3 parts of the sternum

A

manubrium
body
xiphoid

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3
Q

what does the fascia of the pectoral region do? (4)

A

defines borders
invests muscles (covers)
creates potential spaces
consists of superficial and deep layers

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4
Q

what makes up the superficial fascia of the pectoral region? (3)

A

platysma
supraclavicular nerves
anterior and lateral branches of intercostal nerves

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5
Q

what are the borders of the deltopectoral (clavipectoral) triangle? (3)

A

deltoid
pectoralis major
middle 1/3 of clavicle

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6
Q

what are the contents of the deltopectoral (clavipectoral) triangle? (3)

A

cephalic vein
deltopectoral lymph nodes
deltoid branch of thoracoacromial A

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7
Q

what does the clavipectoral fascia do? (4)

A

invests subclavius and pectoralis minor
attatches to clavicle and anterior thoracic wall
cephalic vein, thoracoacromial artery, and lateral pectoral nerves pierce it
becomes suspensory ligament of axilla

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8
Q

Muscles of the pectoral region are innervated by?

A

the ventral rami of spinal nerves via branches of the brachial pexus

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9
Q

Muscles of the pectoral region include? (4)

A

pectoralis major
pectoralis minor
subclavius
serratus anterior

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10
Q

Superficial cervical fascia contains: (3)

A

platysma muscle
superficial veins
cutaneous nerves

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11
Q

prevertebral fascia covers:

A

muscles of the lateral triangle

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12
Q

prevertebral fascia extends:

A

around anterior surface of the cervical vertebrae across anterior midline

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13
Q

boundaries of triangle: anterior

A

posterior border of the sternocleidomastoid

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14
Q

boundaries of triangle: posterior

A

anterior border of the trapezius

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15
Q

boundaries of triangle: inferior

A

clavicle

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16
Q

boundaries of triangle: roof (3)

A

skin
superficial layer of deep cervical fascia (investing fascia)
splits to enclose

17
Q

prevertebral fascia covers muscular floor consisting of: (6)

A 
splenius capitis
levator scapulae
scalenus posterior
scalenus medius
scalenus anterior
omohyoid
18
Q

nerves and vessels of triangle: nerves (3)

A

lesser occipital (C2)
supraclavicular (C3,4)
accessory (CN XI)

19
Q

nerves and vessels of triangle: arteries (5)

A 
occipital artery
transverse cervical artery
subclavian vein 
subclavian artery
external jugular vein
20
Q

spinal accessory nerve: spinal root (2)

A

arises from C1-C5

fibers pass superiorly through foramen magnum and join cranial root

21
Q

spinal accessory nerve: cranial root

A

arises from medulla

22
Q

spinal accessory nerve: spinal root innervates? (2)

A

sternocleidomastoid

trapezius

23
Q

boundaries of axilla base: anterior

A

pectoralis major muscle

24
Q

boundaries of axilla base: posterior

A

latissimus dorsi muscle

25
Q

boundaries of axilla base: medial

A

thoracic wall

26
Q

boundaries of axilla base: lateral

A

humerus

27
Q

boundaries of axilla apex: anterior

A

clavicle

28
Q

boundaries of axilla apex: posterior

A

superior border of the scapula

29
Q

boundaries of axilla apex: medial

A

first rib

30
Q

boundaries of axilla base: 4 parts

A

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

31
Q

anterior axillary fold =

A

pectoralis major

32
Q

posterior axillary fold = (2)

A

latissimus dorsi

teres major

33
Q

chest wall (base of axilla) =

A

serratus anterior

34
Q

boundaries of axilla: 4 parts to anterior wall

A

clavicle
subclavius
pectoralis major
pectoralis minor

35
Q

boundaries of axilla: 4 parts to posterior wall

A

scapula
subscapularis
latissimus dorsi
teres major

36
Q

boundaries of axilla: lateral structures (3)

A 
intertubercular sulcus (bicipital groove)
tendon of long head of biceps
coracobrachialis tendon
37
Q

contents of axilla: great vessels (3)

A

axillary vein and artery
cephalic vein and basilic vein
axillary lymph nodes

38
Q

contents of axilla: nerves (3)

A

long thoracic nerve
cords of brachial plexus
proximal ends of terminal nerves of brachial plexus

Anat 1 (19 decks)

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