Brainscape's Knowledge GenomeTM

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


See full index

RA1 (1) > Basic Anatomy of the Thoracic Wall > Flashcards

Basic Anatomy of the Thoracic Wall Flashcards

1
Q

Prominent features of chest wall (anterior)

A
  • Clavicle
  • Pectoralis muscles
  • Manubro-sternal joint
  • Sternoclavicular joint
  • Nipples
  • Sternum
  • Suprasternal notch
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Prominent features of chest wall (posterior)

A
  • Scapulae
  • Back muscles
  • Vertebra prominens (C7)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Boundaries of thorax

A
  • Superior thoracic aperture (superior)
  • Upper part of diaphragm (inferior)
  • Ribs (antero-latero-posterior)
  • Thoracic vertebrae (posterior)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Margins of superior thoracic aperture

A
  • Body of T1 vertebra
  • 1st ribs (+ cartilages)
  • Manubrium of sternum
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

10 tissue layers of chest wall

A
  • Skin
  • Superficial fascia
  • Pectoral fascia
  • Pectoralis major
  • Clavipectoral fascia
  • Pectoralis minor
  • External intercostal muscles
  • Internal intercostal muscles
  • Innermost muscle
  • Endothoracic fascia
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

3 layers of thoracic fascia

A
  • 2 most superficial = fascia pectoralis (collectively)
  • Deepest = endothoracic fascia
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

2 layers of fascia pectoralis

A
  • Superficial layer (pectoral fascia)
  • Deep layer
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What does the superficial layer of fascia pectoralis cover?

A

Outer surface of pectoralis major (separates from breast tissue)

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

What 2 structures does the deep layer of fascia pectoralis separate?

A

Pectoralis major and minor

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

What is the top of the deep layer of fascia pectoralis fused with?

A
  • Clavicle
  • Coracoid process
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What 2 structures does the endothoracic fascia separate?

A

Internal thoracic wall and underlying pleura

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

Components of a typical rib

A
  • Head (2 facets)
  • Neck
  • Tubercle (1 facet)
  • Body/shaft
  • Proximal end (costal cartilage)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What facets are found on a typical thoracic vertebra and what is each for?

A
  • 2 demifacets on superior and inferior aspects of vertebral body for articulation with the head of adjacent ribs
  • 1 oval facet at the end of the transverse process for articulation with with the tubercle of its own rib
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which thoracic vertebrae are atypical and in what way?

A
  • T1 = superior facet is complete as rib 1 only articulates with T1
  • T9 = no inferior facet as rib 10 only articulates with T10
  • T10 = superior facet is complete and no inferior facet as T10 and rib 10 only articulate with each other
  • T11 + T12 = superior facet is complete and no inferior or transverse facets as the vertebrae and their ribs only articulate with each other, and only by the head of the rib and not the tubercle
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which ribs are the true ribs?

A

1-7

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

Which ribs are false ribs and what does that mean?

A
  • 8-12
  • Don’t articulate directly with sternum (either costal cartilage of rib 7 or floating)
17
Q

Which ribs are floating ribs?

A

11 and 12

18
Q

What does rib 1 articulate with and by what type of joint?

A

Articulates with manubrium by fibrous joint (no movement)

19
Q

What does rib 2 articulate with and by what type of joint?

A
  • Manubrium and body of sternum
  • Synovial joint
20
Q

What do ribs 3-6 articulate with and by what type of joint?

A
  • Body of sternum
  • Synovial joint
21
Q

What does rib 7 articulate with and by what type of joint?

A
  • Body and xiphoid process of sternum
  • Synovial joint
22
Q

What are the 3 parts of the sternum?

A
  • Manubrium
  • Body
  • Xiphoid process
23
Q

Actions of pectoralis major

A
  • Flexor of the arm
  • Adductor of the arm
24
Q

Parts of the pectoralis major

A
  • Clavicular part
  • Sternocostal part
25
Q

Actions of the clavicular part of pectoralis major

A
  • Elevates shoulder
  • Draws arm forwards and medialward
26
Q

Actions of sternocostal part of pectoralis major

A
  • Same as clavicular part
  • Also draws shoulder downwards
27
Q

Where does serratus anterior attach?

A
  • Lateral surfaces of upper 8-9 ribs
  • Deep fascia overlying related intercostal spaces
  • Costal surface of medial border of scapula
28
Q

What nerve supplies serratus anterior?

A

Long thoracic nerve (root values C5-C7)

29
Q

Actions of serratus anterior

A
  • Protraction and rotation of scapula
  • Keeps medial border and inferior angle of scapula opposed to thoracic wall
30
Q

What muscles are associated with the ribs?

A
  • Intercostal muscles
  • Transversus thoracis
  • Levatores costarum
31
Q

Types of intercostal muscles

A
  • External
  • Internal
  • Innermost
32
Q

Where does the neurovascular bundle of intercostal muscles run and what is it housed by?

A
  • Runs on inferior aspect of ribs
  • Housed by sub-costal groove

RA1 (1) (14 decks)

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