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Anatomy II module II > Thoracic wall > Flashcards

Thoracic wall Flashcards

1
Q

What does the thoracic cage consist of?

A

12 thoracic vertebrae and discs, 12 pairs of ribs and costal cartilage, and the sternum

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2
Q

What kind/how many bony vertebra are there?

A

7 cervical, 12 thoracic, 5 lumbar, 5 sacral (fused) and 4 coccygeal (fused)

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3
Q

Two regions of Intervertebral discs?

A

Annulus fibrosis (outside) nucleus pulposa (inside)

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4
Q

what type of joint is betweet he vertebra and intervertebral discs?

A

symphysis

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5
Q

which parts of the spine have a concave curvature (lordosis)

A

Cervical and lumbar

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6
Q

Which parts of the spine have a convex curvature (kyphosis)?

A

Thoracic and Sacral

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7
Q

which curves are primary curves?

A

thoracic and sacral

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8
Q

which curves are secondary curves?

A

cervical and lumbar

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9
Q

what would excessive thoracic kyphosis look like?

A

hunch back

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10
Q

what would excessive lumbar lordosis look like?

A

gymnast

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11
Q

What are articular facets?

A

synovial joints where vertebra and ribs articulate.

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12
Q

What do the facets of the head of the ribs do?

A

Articulate with the body of the corresponding vertebra and vertebra superior to it

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13
Q

What does the articular facet on the Tubercle of the rib do?

A

articulates with the TRANSVERSE process of the corresponding vertebra

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14
Q

What is the angle of the rib?

A

where the rib turns anterolateral

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15
Q

What do you find at the costal groove?

A

Intercostal nerve, artery and vein

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16
Q

What vertebra would the 7th rib articulate with?

A

With bodies of T6 and T7 and with the Transverse process of T7

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17
Q

Which ribs are typical?

A

3-9

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18
Q

Which ribs are atypical?

A

1st, 2nd, and 10-12

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19
Q

Which ribs are true?

A

1-7

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20
Q

which ribs are false?

A

8-10

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21
Q

which ribs are floating?

A

11-12

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22
Q

Costochondral joints (ribs w/costal cartilage) are classified as ?

A

Synchondrosis

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23
Q

The Sternocostal joint of the first rib is classifed as?

A

synchondrosis

24
Q

the 2nd-7th rib sternocostal joints are classified as?

A

synovial joints

25
Q

Parts of manubrium?

A

Jugular nitch and Sternal angle

26
Q

The Xiphisternal joint is a

A

synchondrosis

27
Q

What innervates pec major?

A

Medial and lateral pectoral nerves

28
Q

What is the action of pec major/minor and serratus anterior?

A

accessory muscle of forced inspiration

29
Q

what innervates serratus anterior?

A

long thoracic nerve

30
Q

Proximal attachment of pec major?

A

Clavicular head, sternocostal head

31
Q

Clavicular head

A

medial 1.2 of clavicle

32
Q

sternocostal head

A

anterior surface of sternum, costal cartilage 1-6

33
Q

Distal attachment of pec major

A

lateral lip of the intertubercular groove of the humerus

34
Q

Serratus anterior proximal attachment

A

external surfaces of ribs 1-8

35
Q

Serratus anterior distal attachment

A

anterior surface of medial border of the scapula

36
Q

Innervation of Subclavius muscle

A

nerve to subclavius

37
Q

action of subclavius muscle

A

forces inspiration, elevates FIRST rib

38
Q

Proximal attachment of pec minor

A

external surfaces of ribs 3-5

39
Q

Distal attachment of pec minor

A

coracoid process of scapula

40
Q

Proximal attachment of subclavius

A

1st rib

41
Q

distal attachment of subclavius

A

clavicle (middle 1/3)

42
Q

Where do external intercostals run?

A

tubercle of rib to costochondral junction

43
Q

What replaces the external intercostals anteriorly?

A

external intercostal membrane

44
Q

Where do internal intercostals run?

A

angle of rib to sternum

45
Q

what replaces internal intercostals posteriorly?

A

internal intercostal membrane

46
Q

where is innermost intercostal present?

A

laterally

47
Q

Where is transversalis thoracis?

A

Attaches from costal cartilage 3-6 and pass inferomedial to the lower body of sternum and xiphoid

48
Q

At what level are intercostal nerves?

A

t1-T11

49
Q

Where do posterior intercostal arteries come from?

A

from aorta

50
Q

where to anterior intercostal arteries come from?

A

from internal thoracic artery, a branch off the subclavian

51
Q

Where do posterior intercostal veins empty to?

A

to azygous venous system

52
Q

Where do anterior intercostal veins empty into?

A

internal thoracic veins

53
Q

Where does the phrenic nerve come from?

A

C3 4, 5 ha ha ha ha stayin alive, stayin alive

54
Q

What is the diaphragm attached to?

A

xiphoid, lower ribs and costocartilage, lumbar vertebra L1-3

55
Q

What is the “I ate ten eggs at 12” thing?

A

IVC caval opening is at T8
Esophageal hiatus is at T10
Aortic hiatus is at T12

Anatomy II module II (6 decks)

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