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Anatomy I EXAM 2 DDS UMKC > 1: Thoracic Wall > Flashcards

1: Thoracic Wall Flashcards

1
Q

Functions of the thorax

A
  1. Protect vital thoracic/abdominal organs from forces
  2. Resist the neg. internal pressure by elastic recoiled of the lungs
  3. Provide attachments for and support the weight of limbs
  4. Provide origin for some upper limb muscles
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2
Q

What are the true ribs and they attach

A

1-7 , attach vertebrae to sternum

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3
Q

What are the false ribs and they have

A

8-10, have cartilage attached to the cartilage of ribs superior

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4
Q

What are the floating ribs and they have

A

Cartilages ending in the posterior abdominal wall musculature

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5
Q

What forms the infrasternal angle

A

Cartilages of 7-10 joined

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6
Q

Ribs and costal cartilages are separated by

A

Intercostal space

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7
Q

Superior thoracic aperature is bounded by

A

1 thoracic vertebrae
1st pair of ribs
Superior border of manubrium

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8
Q

Inferior thoracic aperature is closed by

A

The diaphragm

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9
Q

Head of ribs articulate with

A

Inferior and superior facets of the body

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10
Q

Tubercle of ribs articulate with

A

Facets of transverse processes

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11
Q

Costal groove is located which portion of rib

A

Inferior border

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12
Q

Thoracic outlet syndrome

A

When there’s compression or injury of vessels in the lower neck and chest

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13
Q

Three parts of manubrium

A

Jugular mother
Clavicular notch
Notch for 1 cost cartilage

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14
Q

Parts of sternum

A

Manubrium
Body
Xiphoid process

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15
Q

Describe sternal angle

A

Slight angle between manubrium and body

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16
Q

Prectus carinatum

A

Abnormal development causing sternum to protrude out

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17
Q

Pectus excavatum

A

Sternum grows in

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18
Q

Poland syndrome

A

No pectoral is muscle

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19
Q

Scoliosis

A

Lateral curvature of the spine

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20
Q

Costovertebral joint upper ribs

A

1-7 rotate

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21
Q

Costovertebral joint lower ribs

A

8-10 glide

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22
Q

Costovertebral joints ribs 11/12

A

Do not articulate with transverse processes

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23
Q

Costchondral joints

A

Rib and costal cartilage, no movement

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24
Q

Intercondral joints 6-9

A

Synovial plane joints

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25
Q

Intercondral joints 9 and 10

A

Fibrous joints

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26
Q

Sternocostal joints

A

1st is cartilaginous

2-7 are synovial

27
Q

Intercostal muscles include

A
  1. External intercostal
  2. Internal intercostal
  3. Innermost intercostal
  4. Subcostal
  5. Transversus thoracis
28
Q

External intercostal attach superiorly to ______ and inferiorly to ________

A

Superior inferior border of rib above

Inferiorly superior border of ribs below

29
Q

External intercostal muscle fibers run

A

Inferoanteriorly, down and in

30
Q

Function of external intercostals

A

Elevate ribs during forced inspiration

31
Q

Internal and inner most intercostal attach superiorly to ______ and inferiorly to ________

A

Superior: inferior border of rib above
Inferior: superior border of rib below

32
Q

Interousseous part of internal and innermost intercostals functions to

A

Depress the ribs during forced respiration

33
Q

Internal and innermost intercostals are separated by

A

Neurvascular bundle

34
Q

Subcostalis attach superiorly to ______ and inferiorly to ________

A

Superior: internal surface of lower ribs near their angles
Inferior: superior border of ribs 2-3 below

35
Q

Subcostalis fibers run

A

Inferoposterio, down and out, looks like its down and in but not!

36
Q

Internal and innermost fibers run

A

Inferoposterio, down and out

37
Q

Function of subcostalis

A

Depress ribs during forced respiration

38
Q

Transversus thoracis attach superiorly to ______ and inferiorly to ________

A

Superior: on the posterior sternum
Inferior: costal cartilages 2-6

39
Q

Function of transversus thoracis

A

Depress ribs

40
Q

Other muscles of the thoracic wall

A
  1. Levator costae
  2. Serratus posterior superior
  3. Serratus posterior inferior
41
Q

Function of levator costae

A

Elevate ribs

42
Q

Function of serratus posterior superior

A

Elevate ribs

43
Q

Function of serratus posterior inferior

A

Depress ribs

44
Q

Muscles that elevate ribs

A
  1. External intercostal
  2. Levator costae
  3. Serratus posterior superior
45
Q

Muscle that depress the ribs

A
  1. Internal
  2. Inner most
  3. Subcostalis
  4. Tranversus thoracis
  5. Serratus posterior inferior
46
Q

Curse of intercostal nerve

A

Ventral rami is intercostal nerve, travels laterally and to front of abdomen

47
Q

Branch off intercostal nerve

A

Lateral cutaneous nerve

48
Q

Dermatomes

A

Area of skin supplied by nerves from a single root

49
Q

Thoracentesis

A

Procedure to remove fluid from space between wall of chest and pleura of lungs

50
Q

Nerve root block

A

Use for pain management

51
Q

What part of ribs are elevated

A

Lateral most posts

52
Q

What part of the thorax increases

A

The transverse diameter

53
Q

The ribs are elevated at the neck especially at ribs

A

2-6

54
Q

Elevation of ribs causes an increase in the

A

A-P diameter of the thorax = pump handle movement

55
Q

Blood vessels that branch from aortic arch

A
  1. Right brachiocephalic
  2. Left common carotid
  3. Left subclavian
56
Q

Primary blood supply to the thoracic wall is derived from branches of the

A

Aorta and subclavian arteries

57
Q

Internal thoracic artery is a branch of

A

R/L subclavian arteries

58
Q

Intercostal spaces 2-6 are supplied by

A

Anterior intercostal arteries, branch of ITA

59
Q

Intercostal space 7-10 are supplied by

A

Musculophrenic artery, branch of ITA

60
Q

What supplies the intercostal 7-10

A

Anterior intercostal arteries

61
Q

Posterior intercostal arteries are branches of the

A

Descending aorta

62
Q

VAN is what and located where in intercostal space

A

Vain artery nerve, on the inferior border of the rib in the costal groove

63
Q

Thoracentesis relation to spatial relationship of VAN

A

Process to remove fluid from chest cavity would want to place needle on superior border of rib to avoid puncture of the VAN

Anatomy I EXAM 2 DDS UMKC (6 decks)

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