Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Thorax > Thoracic Wall > Flashcards

Thoracic Wall Flashcards

1
Q

Why is the thoracic cavity smaller than the external aspect of the chest?

A

Because the thoracic diaphragm (floor of the thoracic cavity) is invaginated inferiorly by the vicera of the abdominal cavity, the thoracic wall protect more abdominal vicera than thoracic viscera.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Curved, flat bones that form most of the thoracic cage [Identify]

A

Ribs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How many pairs of ribs make up the thoracic cage?

A

12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are three types of ribs, based on their attachment?

A

True (vertebrocostal), False (vertebrocondral), Floating (vertebral , free)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the two types of ribs based on rib anatomy?

A

Typical, atypical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which ribs are vertebrocostal?

A

1st to 7th

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Where do true ribs attach?

A

Vertebra, posteriorly,

Sternum anteriorly through their costal cartilage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which ribs are vertebrochondral?

A

8, 9, and usually 10

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Where do false ribs attach?

A

Vertebra, posteriorly,

Costal cartilage of rib superior to them, anteriorly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which ribs are free?

A

11, 12, and sometimes 10

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Where do floating ribs attach?

A

Vertebra, posteriorly

End in posterior abdominal musculature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which ribs are typical?

A

3rd to 9th

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The head of a typical rib has two facets for attachment to where?

A

One attaches to corresponding vertebra, the other for vertebra superior to it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Fourth rib’s head facets attaches to T5 and T4. True or false? If false, explain.

A

False.

It attaches to the corresponding vertebra, T4, and to vertebra superior to it, T3.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The neck of the rib connects its head and body. True or false? If false, explain.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

A typical rib has a tubercle with two parts at the junction of the neck and body. Where do these attach?

A

The articular tubercle attaches to the transverse process of of the vertebra,
the non-articular part to the costotransverse ligament.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the costal angle?

A

The part where the ribs turn anterolaterally

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The body of a typical rib has a costal groove on the internal surface for which structures?

A

Intercostal nerve and vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Which are atypical ribs?

A

1st, 2nd, 11th, 12th

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The broadest, shortest, most shaply curved rib [Identify]

A

1st

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Why does the first rib have only one facet on its head?

A

It only needs facet for attachment to corresponding vertebra, since there’s no vertebra superior to it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Which muscle attaches to the scalene tubercle of the first rib?

A

Anterior scalene muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Which is the main atypical feature of the second rib?

A

Tuberosity for serratus anterior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Which ribs have only one facet on their head?

A

1st, 10th to 12th

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Which ribs have no neck?

A

11th, 12th

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Which ribs attach only to one vertebra?

A

1st, 10th to 12th

27
Q

Which costal cartilages make up the costal margin?

A

8th to 10th

28
Q

How are intercostal spaces named?

A

They are named after the the rib at their superior border.

29
Q

The intercostal space between the 7th and 8th rib is called what?

A

7th intercostal space

30
Q

Between which ribs is the 10th intercostal space?

A

10th and 11th

31
Q

How many intercostal spaces are there?

A

11

32
Q

What is the space below the 12th rib called?

A

Subcostal space

33
Q

The intercostal spaces widen with inspiration. True or false? If false, explain.

A

True

34
Q

What is the nerve of the 12th vertebra called?

A

Subcostal nerve

35
Q

How many pairs of thoracic spinal nerves are there?

A

12 pairs

36
Q

How many intercostal nerves are there?

A

11

37
Q

Branch of thoracic spinal nerve that gives rise to the intercostal nerves [Identify]

A

Anterior rami of the thoracic spinal nerves

38
Q

Two classifications of intercostal nerves [Identify]

A

Typical and atypical intercostal nerves

39
Q

Two first divisions of T1 [Identify]

A

1st intercostal nerve and contribution to brachial plexus

40
Q

The first intercostal nerve does not give an anterior cutaneous branch. True or false? If false, explain.

A

True

41
Q

Atypical intercostal nerves [Identify]

A

1st, 2nd, (sometimes 3rd), 7th-11th

42
Q

Typical intercostal nerves [Identify]

A

3rd to 6th

43
Q

Instead of running along the inferior margin in the costal grooves, the 1st and 2nd intercostal nerves pass where?

A

Internal surface of ribs

44
Q

What forms the intercostobrachial nerve?

A

Lateral cutaneous branch of the 2nd intercostal nerve

45
Q

Structure the intercostobrachial nerve inntervates [Identify]

A

Skin and subcutaneous layer of thoracic wall

46
Q

The intercostobrachial nerve, with which nerve, innervates the medial and posterior portion of the arm?

A

Medial brachial cutaneous nerve

47
Q

The 7th to 11th intercostal nerves form which innervation of the thorax and abdomen?

A

Thoracoabdominal nerves

48
Q

Branch that connects the intercostal nerves to its ipsilateral sympathetic trunk

A

Rami communicantes

49
Q

What does the white rami communicantes connect?

A

Anterior ramus of the intercostal nerve to the ipsilateral sympathetic trunk

50
Q

What does the gray rami communicantes connect?

A

Sympathetic trunk to anterior ramus of the intercostal nerve

51
Q

White rami communicantes are postsynaptic fibers. True or false? If false, explain.

A

False.

They are presynaptic fibers.

52
Q

Gray rami communicantes are presynaptic fibers. True or false? If false, explain.

A

True.

They are postsynaptic fibers.

53
Q

Branches of a typical intercostal nerve [Identify]

A

Rami communicantes, collateral branches, anterior cutaneous branches, lateral cutaneous branches, muscular branches

54
Q

Branches of the lateral cutaneous branch of the intercostal nerve

A

Anterior branch, posterior branch

55
Q

Branches of the anterior cutaneous branch of the intercostal nerve

A

Medial branch, lateral branch

56
Q

Lateral cutaneous branch arises near the mid axillary line. True or false? If false, explain.

A

True

57
Q

At the angle of the ribs, the typical intercostal nerve runs between the external intercostal and inner intercostal muscles. True or false? If false, explain.

A

False.

It runs between the inner intercostal and innermost intercostal muscles.

58
Q

The intercostal nerve lies inferior to the intercostal artery which lies inferior to the intercostal vein. True or false? If false, explain.

A

True

59
Q

At the angle of the ribs, the typical intercostal nerve branches into which two?

A

Lateral cutaneous branch, anterior cutaneous branch

60
Q

The muscular branches supply the intercostal nerve, subcostal transverse thoracis, levatores costarum, and serratus anterior muscles. True or false? If false, explain.

A

False.

They supply the serratus posterior instead of the serratus anterior muscle.

61
Q

What does the lateral cutaneous branch of the intercostal nerve innervate?

A

Skin on the lateral thoracic and abdominal wall

62
Q

What does the anterior cutaneous branch of the intercostal nerve innervate?

A

Skin on the anterior aspect of thoracis and abdominal walls

63
Q

Branches of the intercostal nerve that descend to course along superior margin of lower rib [Identify]

A

Collateral branches

64
Q

The collateral branches of the intercostal nerve help supply which structures?

A

The intercostal muscles, parietal pleura

Thorax (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions