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Ana201 > Osteology Of Thorax > Flashcards

Osteology Of Thorax Flashcards

1
Q

The thorax is the part of the body btw the ——- and ——

A

Neck and abdomen

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2
Q

The anterior part of the thorax is called —— and the posterior part is called——

A

Chest
Back

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3
Q

Thorax is flattened——- and ——— but round at the ———

A

Anteriorly
Posteriorly
Sides

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4
Q

List the boundaries of the thorax

A

Sternum anteriorly ( breast plate)
12 thoracic vertebrae posteriorly
12 pairs of ribs laterally

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5
Q

List the different types of vertebrae

A

Cervical- 7
Thoracic- 12
Lumbar- 5
Sacral- 5
Coccygeal- 1( 4 bones make up 1)

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6
Q

The superior extent of the thorax is the ——

A

Superior thoracic aperture

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7
Q

The spaces btw ribs is called

A

Intercostal spaces

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8
Q

The sternum is shaped like

A

A knotted tie

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9
Q

List the 3 major part of sternum

A

Manubrum
Body
Xiphoid process

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10
Q

Upper part of the sternum is —— than the lower part

A

Thicker

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11
Q

The joint between manubrium and body is

A

Manubriosternal joint

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12
Q

Manubriosternal joint is a ——-joint

A

Primary cartilagenous joint

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13
Q

Manubriosternal joint ossifies around age—

A

30

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14
Q

Manubrium is found opposite T_ and T_

A

4
5

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15
Q

The manubriosternal joint is directly opposite the junction between

A

4th and 5th thoracic vertebrae

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16
Q

The manubriosternal joint has an angle called

A

Sternal angle of Louis

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17
Q

The structures that pass through the sternal angle of Louis are

A

Rib- rib 2
Aorta- ascending aorta ending, arch of aorta beginning and descending aorta beginning
Trachea- bifurcation
Pulmonary trunk- bifurcation
Left recurrent laryngeal nerve, Ligamentum arteriosum
Azygos vein drains into SVC
Nerves- cardiac plexus
Thoracic duct- crosses from right to left

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18
Q

Between the two pleural cavities( right and left) there’s a cavity called

A

Mediasternum

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19
Q

The plane coming from the junction btw T4 and T5 divides the mediasternum into

A

Superior mediasternum
Inferior mediasternum

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20
Q

Heart is found in mediasternum. T or F

A

T

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21
Q

There’s a notch called —— or —- at the top of the manubrium

A

Suprasternal notch
Jugular notch

22
Q

The attachment of the 2nd rib to the manubrium is —— and a —— bone

A

Immovable
Primary cartilagenous

23
Q
  1. Joint btw clavicle and manubrium is a —— type of joint
  2. 1st rib and manubrium is a —— type of joint
  3. 2nd rib, lower manubrium and upper part of body is a —— type of joint with 2 different ——
A
  1. Synovial
  2. Primary cartilagenous
  3. Synovial, synovial cavities
24
Q

Manubrium serves as point of a little bit of muscle origin for —- muscle

A

Sternocleidomastoid muscle

25
Q

Body of the sternum serves as a bigger muscle origin for —- muscle and also serves as muscle origin for —- muscle

A

Sternocleidomastoid
Pectoralis major

26
Q

The body of sternum in a baby is not one , it is a combination of smaller bones called —- that fuse later at age — to —

A

Sternebrae
15 to 25

27
Q

There’s rib attachment on the xiphoid process. T or F

A

F

28
Q

The joint btw body of sternum and xiphoid process is called and is a —- joint

A

Xiphisternal joint
Primary cartilagenous

29
Q

Xiphoid process is found at level of T—

A

T10

30
Q

Xiphoid process is a cartilage. T of F

A

T

31
Q

Xiphoid process ossified at what age

A

40

32
Q

Ribs can be classified based on? Give their types

A

Anatomy ( typical and atypical)
Attachment to sternum ( true, false, floating)

33
Q

On true ribs, there’s presence of

A

Costal cartilage

34
Q

Ribs — to — attach to the sternum through their costal cartilage

A

1 to 7

35
Q

In false ribs, ribs — to — attach to the costal cartilage of — rib
This forms—-

A

8 to 10
7th
Costal margin

36
Q

T— and T— are floating

A

T11 and T12

37
Q

In typical bones, list the ends

A

Posterior
Shaft
Anterior

38
Q

The point where posterior end of the rib curves sharply is the

A

Angle of the rib

39
Q

List the structure you can find in a cross section of the shaft of a rib

A

Costal groove (VAN)

40
Q

List the structures you can find at the posterior end of the rib

A

Superior articular facet ( small)
Inferior articular facet ( large)
Neck
Head

41
Q

Looking from up , what can you find on the thoracic vertebrae

A

1 spinous process
2 transverse processes
Vertebrae foramen

42
Q

Body of the thoracic vertebrae is —- shaped

A

Heart

43
Q

The articular tubercle of the rib attaches to—- part of the thoracic vertebrae

A

Transverse process

44
Q

In atypical, the head has how many facets while in typical the head has how many facets

A

1
2

45
Q

Atypical rib is shortest and most curved
Ribs that are atypical?

A

T
1,2,10,11,12

46
Q

Neck of atypical rib is rounded T or F

A

T

47
Q

In atypical ribs, presence of —- and —- surfaces

A

Upper and lower

48
Q

On the first rib
You can find the scalene tubercle which is point of attachment of —- muscle and has ——- in front of it and ——- at the back of it

A

Anterior scalene
Groove for subclavian vein
Groove for subclavian artery

49
Q

The superior thoracic aperture or superior inlet is made up of

A

The body of T2 posterioly
Medial margin of rib1 laterally ( left and right)
Manubrium of sternum anteriorly

50
Q

The inferior thoracic aperture or inferior outlet is made up of

A

Costal margin anteriorly
Distal tip if rib 11 laterally
Rib 12
Body of T12 posteriorly
Xiphoid process

51
Q

The transverse ridge lies at the level of the ——the point from which all costal cartilages and ribs are counted

A

2ndcostalcartilage

52
Q

In first rib,
Its anterior end articulates by costal cartilage to manubrium by

A

synchondrosis (primary cartilaginous joint )

Ana201 (9 decks)

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