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SEM 2 ANATOMY > Thorax 1 > Flashcards

Thorax 1 Flashcards

1
Q

insertions of pec major

A

sternum and clavicle

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2
Q

insertion of pec minor

A

carocid process of scapulla and ribs 3,4,5

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3
Q

what does the pec minor do

A

split axillary artery into three parts

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4
Q

what does the platysma

A

pulls corners of lips down and pulls mandible down to open mouth

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5
Q

what is the serratus anterior supplied by

A

long thoracic nerve

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6
Q

paralysis of serratus anterior leads to what

A

wing scapulla

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7
Q

what do the subclavius and clavi-pectoral fascia do

A

protect underlying brachial plexus from a broken clavicle

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8
Q

what is a hiatus hernia

A

weakening of diaphragm, stomach goes up

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9
Q

what is a congenital diaphragmatic hernia

A

diaphragm doesn’t form fully - liver goes up into thorax

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10
Q

origin of diaphragm

A

lumbar spine, inferior thoracic aperture , sternum

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11
Q

insertion of diaphragm

A

central tendon

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12
Q

what two arteries come from the second part of the axillary artery

A

thoraco-acromial artery

lateral thoracic artery

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13
Q

what does the thoraco acromial artery supply

A

anterior axillary wall

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14
Q

what does the lateral thoracic artery supply

A

medial and anterior wall of axilla

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15
Q

what does the medial and lateral pectoral nerves supply

A

pec major and minor

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16
Q

what is the medial and lateral pec nerves a branch off of

A

brachial plexus (C5-T1)

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17
Q

what is the medial mammary arteries a branch of

A

internal thoracic

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18
Q

what is the lateral mammary arteries a branch of

A

lateral thoracic artery

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19
Q

what is the internal thoracic a branch off

A

subclavian and runs straight down

20
Q

APICAL lymph nodes in axillary

A 
Anterior
Posterior
Infra-clavicular 
Central 
Apical 
Lateral
21
Q

what does the parasternal lymph nodes drain

A

lymph from medial breast

22
Q

what does the head of the rib articulate with

A

superior costal facet

23
Q

what does the tubercle of the rib articulate with

A

transverse costal facet

24
Q

parts of rib

A 
head 
neck 
tubercle 
shaft 
costal groove
25
Q

what is inbetween superior and middle scalene muscle

A

brachial plexus and axillary artery

26
Q

what type of joint is a costochondral

A

primary cartilaginous

27
Q

what type of joint is a sternochondral

A

atypical synovial

28
Q

what type of joint in sternoclavicular

A

atypical synovial

29
Q

what type of joint in manubriosternal

A

secondary cartilaginous

30
Q

what two things is a costo-transverse joint

A

tubercle of rib and transverse process

31
Q

how many posterior intercostal arteries

A

11
9 from thoracic aorta
2 arise form superior intercostal artery from subclavian

32
Q

how many anterior intercostal arteries

A

9
6 from internal thoracic
3 from musculophrenic

33
Q

where does the internal thoracic artery arise from

A

1st part of subclavian

34
Q

how does the internal thoracic terminate

A

by dividing into musculophrenic and superior epigastric arteries

35
Q

where do the intercostal nerves run

A

run with the costal groove of the rib

36
Q

what happens in the 8th intercostal space

A

nerves cross deep to the costal margin and enters abdo wall

37
Q

what does T10 supply

A

umbllicus

38
Q

what does T12 supply

A

skin at supra pubic level

39
Q

what does the collateral branch of the intercostal nerves supply

A

anterior muscles of intercostal

40
Q

what nerve supplies serratus anterior

A

long thoracic

41
Q

where is chest drain inserted

A

4/5th intercostal space
above rib
inbetween mid axillary line and anterior axillary line

42
Q

direction of external intercostal muscles

A

hands in pockets

thicken at the back

43
Q

direction of internal intercostal muscles

A

hands to face

thicken at front

44
Q

direction of innermost muscles

A

same as internal

separated from internal intercostal by neurovascular bundle

45
Q

whats behind the innermost muscle

A

subcostalis

SEM 2 ANATOMY (6 decks)

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