BMS12-1008 The Thorax Flashcards

1
Q

What makes the thorax? (6)

A
Ribs
Intercostal space
Costal cartilage
Sternum
Thoracic vertebrae 
Organs
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2
Q

2 functions of the thorax

A

Protect organs

Respiration

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3
Q

What forms the superior thoracic aperture?

A

1st rib
Manubrium
Vertebrae 1

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4
Q

What forms the inferior thoracic aperture?

A

Floating ribs
Costal region
Xiphoid process
Vertebrae 1

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5
Q

What passes through the STA?

A

Trachea
Carotid artery
Apex of lungs
Oesophagus

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6
Q

What passes through the ITA?

A

Descending aorta
Inferior vena cava
Oesophagus

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7
Q

Name the regions of the spine from top to bottom

A
Cervical
Thoracic
Lumbar
Sacrum 
Coccyx
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8
Q

Synarthroses

A

Immovable

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9
Q

Amphiarthroses

A

Slightly moveable

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10
Q

Diarthroses

A

Freely moveable

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11
Q

Name a primary cartilaginous joint

A

Rib to costal cartilage- costochondral

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12
Q

Name a secondary cartilaginous joint

A

Manubriosternal joint

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13
Q

Name 4 synovial joints

A

Costotransverse
Costovertrebral
Interchondral
Sternocostal

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14
Q

Describe the head of a typical rib

A

It has 2 facets for articulation with vertebrae

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15
Q

What connects the bone head to the body?

A

Neck

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16
Q

What is at the neck body junction and what does it do?

A

Tubercle

Articulates with a transverse vertebral process

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17
Q

What does the costal groove do?

A

Contains the VAN

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18
Q

Where is the costal groove?

A

Interior surface running along the inferior border

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19
Q

Which ribs are typical?

A

3-9

20
Q

Describe the 1st rib

A

Broad and sharply curved with a flat upper and lower surface
Has only 1 facet for T1
It has 2 grooves on its superior surface
Tubercle for scalene muscle attachment

21
Q

What don’t ribs 11 and 12 have? (3)

A

No neck, anterior articulation or tubercle

22
Q

How many facets do ribs 5-12 have?

A

1

23
Q

Which are the atypical ribs?

A

1, 2, 3, 5, 6, 7

24
Q

How many facets does the 2nd rib have?

A

2

25
Q

Name 2 cartilaginous joint

A

Manubriosternal

Xiphisternal

26
Q

Describe the sternocostal joints and their names

A

The manubrium has a primary cartilaginous joint and the Sternum and xiphoid have synovial joints

Costal notches

27
Q

Where are interchondral joints?

A

Between 6 and 7, 7 and 8 and so on, forming the costal margin

28
Q

3 types of facets

A

Costal
Inferior
Superior

29
Q

3 costal facets

A

Transverse
Superior (rib)
Inferior (rib)

30
Q

Where is the spinal process?

A

Opposite the body in the centre

31
Q

Vertebral foramen

A

The hole

32
Q

Where is the pedicle?

A

Between the superior articular facet and the superior costal facet

33
Q

What joins the superior costal facet?

A

Head of rib

34
Q

What joints the transverse costal facet?

A

Tubercle of rib

35
Q

What is the transverse costal facet on?

A

Transverse process which there are 2 of either side of the spinous process

36
Q

What does the superior articular facet do?

A

Link vertebrae

37
Q

Where is the superior articular facet?

A

Between the transverse costal facet and the superior facet

Attached to the spinous process below

38
Q

What is between the superior costal facet and superior articular facet?

A

Pedicle

39
Q

What does the intercostal nerve supply?

A

Intercostal muscles
Skin
Parietal pleura

40
Q

Where does the sympathetic trunk run?

A

Base of skull to the coccynx

41
Q

What are the intercostal arteries branches of?

A

Aorta and internal thoracic vessels

42
Q

What is the highest intercostal artery a branch of?

A

Costocervical trunk

43
Q

Where do intercostal veins drain?

A

Azygos system

44
Q

Where and what is the sternal angle?

A

The manubriosternal joint between T4 and T5

45
Q

Where do the thoracic vertebrae articulate with the rubs?

A

Costotransverse and costovertebral joint

46
Q

Costotransverse

A

Between the rib and transverse costal facet

47
Q

What do the intercostal muscles do when inhailing?

A

External contract and internal relax