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CR2 > Anatomy Of The Thorax > Flashcards

Anatomy Of The Thorax Flashcards

1
Q

Sternocleidomastoid innervation

A

Spinal accessory nerve

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2
Q

Sternocleidomastoid attachments

A

Mastoid process to sternum + clavicle

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3
Q

How does sternocleidomastoid effect chest wall

A

Lifts on inspiration

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4
Q

Pectoralis major innervation

A

Pectoral nerves C5-T1

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5
Q

How does pectorals major move the chest wall

A

Lift

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6
Q

Where does serratus anterior attach

A

Scapular -> ant aspect of ribs

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7
Q

Serratus anterior innervation

A

Long thoracic nerve

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8
Q

Which spinal nerves contribute to the long thoracic nerve

A

C5-7

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9
Q

Which muscle if the boxers muscle

A

Serratus anterior

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10
Q

Which nerve is at risk in a radical mastectomy

A

Long thoracic nerve

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11
Q

What does long thoracic nerve damage cause

A

Winging of the scapula

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12
Q

Rectus abdominis attachments

A

Costal margin -> pubic crest + symphysis

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13
Q

Rectus abdominins innervation

A

Intercostal + subcostal nerves t7-t12

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14
Q

Which spinal nerves contribute to the intercostal and subcostal nerves

A

T7-12

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15
Q

How does rectus abdominis effect chest wall

A

Lowers

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16
Q

How do external intercostal muscles move chest wall

A

Raise

17
Q

Innervation of external intercostal muscles

A

Intercostal nerves
T2-11

18
Q

Which spinal nerves contribute to the intercostal nerves

A

T2-11

19
Q

3 layers of intercostal muscles

A

External intercostals
Internal intercostals
Innermost intercostals

20
Q

Do external intercostals run inferoanteriorly inferoposteriorly

A

Inferoanteriorly

21
Q

Do internal and innermost intercostals run inferoanteriorly or inferoposteriorly

A

Inferoposteriorly

22
Q

Which muscles layers do the neuro vascular bundles run between

A

Internal and innermost

23
Q

What vessel do the posterior intercostal arteries branch from

A

Aorta

24
Q

What vessel do the anterior intercostal arteries branch from

A

L/R Internal mammary

25
Q

Is the lateral part of the chest wall supplied by the anterior or posterior intercostal circulation

A

Posterior

26
Q

What separates the thoracic cavity and abdominal cavity

A

Diapragm

27
Q

Diapragm innervation

A

Phrenic nerve

28
Q

Which spinal nerves contribute to the phrenic nerve

A

C3,4,5

29
Q

What levels do the IVC, oesophagus, and aorta transect the diapragm

A

IVC - T8
Oesophagus - T10
Aorta - T12

30
Q

What are the 2 layers of the lung pleura called

A

Visceral pleura
Parietal pleura

31
Q

What is between the visceral and parietal pleura

A

Pleural cavity

32
Q

What fills the pleural cavity and what is its purpose

A

Fluid
Decr friction

33
Q

Which layer of the pleura is sensitive to pain

A

Parietal

34
Q

Which intercostal nerves innervate the parietal pleura

A

T2-12

35
Q

Pneumothorax

A

Air in thoracic cavity

CR2 (33 decks)

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