Brainscape's Knowledge GenomeTM

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


See full index

Anatomy 101 > Ostelogy of the Thorax > Flashcards

Ostelogy of the Thorax Flashcards

You may prefer our related Brainscape-certified flashcards:
Physics 101 flashcards Psychology 101 flashcards Chemistry 101 flashcards Biology 101 flashcards Organic Chemistry 101 flashcards Sociology 101 flashcards
1
Q

What are the 3 bones that make up the osteology of the Thorax

A
  • Ribs
  • Sternum
  • Thoracic Vertebrae
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How many ribs does a human body have

A

12 pair

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

How can ribs be classified

A
  • Attachment

- Feature

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

Which ribs are known as true/VERTEBROSTERNAL ribs and why?

A

Ribs 1-7

The ribs attach posteriorly to the vertebrae and anteriorly to the sternum via their own costal cartilage.

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

Which ribs are known as false/VERTEBROCHONDRAL ribs and why?

A

Ribs 8-10

-The ribs attach posteriorly to the vertebrae and anteriorly to the sternum via the costal cartilage of rib 7.

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

What are floating/VERTEBRAL ribs name them?

A

These are ribs that only attach posteriorly to the vertebrae

and these are ribs 11 and 12.

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

Which ribs are considered typical ribs and what are the features?

A

Ribs 3 to 9

  • head( 2 articular facets)
  • neck
  • tubercle (Non-articular and articular)
  • costal angle
  • costal groove
  • body (2 boarders and 2 surfaces)
  • anterior end
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the 2 borders of a typical rib

A
  • rounded superior border

- sharp inferior boarder

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

What are the 2 surfaces of a typical rib

A
  • convex external surface

- concave internal surface

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

which ribs are Atypical

A

Ribs 1,2,10,11 and 12

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

Features of an atypical rib 1

A

-head( 1 facet)
-neck
-tubercle
-costal angle
(coincide)
-body( 2 boarders and 2 surfaces)

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

how many grooves does superior surface have and what for.

A

2 grooves

  • For the subclavian artery
  • For the subclavian vein
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the main atypical feature for rib 2

A

tuberosity for serratus

anterior muscle on the superior surface

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

How many facets does the head of rib 10 have

A

ONE

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

What are the features of ribs 11-10

A
  • head with one facet
  • no neck
  • no tubercle
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which thoracic vertebrae are typical

A

T5-T8

17
Q

Features of a typical thoracic vertebrae

A
  • Body
  • vertebral foramen
  • transverse process
  • spinous process
  • Articular processes
18
Q

Describe the body of the typical thoracic vertebrae

A
  • Heart-shaped

- bears costal facets for articulation with head of rib

19
Q

Describe the vertebral foramen

A

small and circular

20
Q

What does the transverse process contain

A

contains costal facets for articulation with tubercles of rib

21
Q

Describe the spinous process

A

thin, long and directed postero-inferiorly

22
Q

Describe the articular processes

A

superior - directed posterolaterally

Inferior-directed anteromedially

23
Q

How many parts does the sternum have and name them

A

3 parts

  • Manubrium
  • body
  • xiphoid process
24
Q

Describe the Manubrium

A
  • jugular notch
  • clavicle notch
  • facet for the 1st costal cartilage
  • demifacet for the 2nd costal cartilage
25
Q

Describe the body of the sternum

A
  • Demifacet for 2nd costal cartilage
  • Demifacet for 7th costal cartilage
  • Facets for costal cartilages 3 to 6
26
Q

What does the xiphoid process have

A

Demifacet for 7th costal cartilage

27
Q

List the posterior joints of the thorax

A
  • Costovertebral joint

- Costotransverse joint

28
Q

Describe the articular surface and type of joint of the 1. Costovertebral 2. Costotransverse joint.

A
  1. Articular surface- facets on the head of the rib and thoracic vertebral body.
    Type- Synovial plane
  2. Articular surface- articular part off tubercle of the rib
    - costal facet on transverse process of thoracic
    vertebra.
    Type- Synovial, plane
29
Q

Describe the articular surface and type of joint of 1. Costochondral joint 2. Sternochondral joint 3. Interchondral joint

A
  1. Articular surface- anterior end of the rib
    - costal cartilage
    Type of joint- primary cartilaginous joint
  2. Articular surface- facets of the lateral margin of sternum
    - costal cartilage of ribs 1 to 7
    Type of joint- 1st sternochondral joint is a synchondrosis
    -2nd to 7th sternochondral joint is a synovial plane
  3. Articular surface- between the tips of costal cartilages of ribs 6, 7,
    8, 9 and 10,
    Type of joint- between ribs 6 to9 its a synovial plane
    - between ribs 9 and 10 its fibrous
30
Q

Name the joints of the sternum

A
  • Manubriosternal joint

- Xiphisternal joint

31
Q

Describe the Manubriosternal joint

A
  • Articular surface: interior end of manubrium
    - superior end of the body of the sternum
  • Type of joint: secondary cartilagenous
32
Q

Describe the xiphisternal joint

A
  • Articular surfaces:-inferior end of the body of sternum
    - superior part of xiphoid process
  • Type of joint: primary cartilagenous
33
Q

Describe the ossification of a thorax

A

The primary ossification center appears in the shaft at 8 intrauterine
The secondary ossification center appears in the head, articular part of the tubercle, and non-articular part of the tubercle. Appears around puberty. Epiphysis unites about 20yrs

34
Q

superior thoracic aperture aka. thoracic inlet

A

Smaller, oblique, kidney-shaped
opening that allows communication
with the neck and upper limbs

35
Q

What are the BOUNDARIES of the thoracic outlet

A

-Posteriorly: vertebra T1
-Laterally: 1st pair of ribs and their
costal cartilages.
-Anteriorly: by the superior border of
the manubrium.

36
Q

inferior thoracic aperture aka thoracic outlet

A

-Large opening
-closed off by the diaphragm, separating the
thorax from the abdomen

37
Q

what are the Boundaries of the thoracic outlet

A

-Posteriorly: vertebra T12
-Posterolaterally: 11th and 12th pairs of
ribs
-Anterolaterally: by the joined costal
cartilages of ribs 7-10, forming the costal
margins
-Anteriorly: by the xiphisternal joint

38
Q

Definition of Anatomists

A

refer to the superior
thoracic aperture as the thoracic inlet
because it allows for the entry of air
and food into the thorax

39
Q

Why do Clinicians refer to a superior thoracic aperture as a thoracic outlet

A

because
arteries and T1 spinal nerves emerge
from the thorax through this aperture to
enter the lower neck and upper limbs

Anatomy 101 (6 decks)

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