thoracic anatomy

Question 1

what does Thoracic cage contain ?

Answer 1

Sternum
Ribs
Costal cartilage
Thoracic vertebrae

Question 2

what is the functions of the thoracic cavity

Answer 2

Encloses and protects the organs in the thoracic and superior abdominal cavities

Provides support for the bones of the upper limbs

Plays a role in breathing

Question 3

draw sternum and label the mauberium, body and xiphoid process.

name where these 3 structures are in relation to position too ?

Answer 3

-check saved files for cross refences
Manubrium – superior
Body – middle
Xiphoid process – inferior

Question 4

label where the demi facet is and facet is within the sternum and label where they articulate with with regards to the rib

Answer 4

demi facet articulates with part of second of rib and facet articulates part of 4th rib.

Question 5

what is between the manubrium and the body of the sternum ?

Answer 5

sternum angle

Question 6

where does each rib attach too on the sternum name the number and structure ?

Answer 6

rib 1- manubrium
rib 2- sternum angle
rib 3-6- body of the sternum

Question 7

what is between the body of the sternum and the xphoid process (hint: …. joint

Answer 7

xphisternal joint

Question 8

where doe does clavicle attach too ? (be specific )

Answer 8

clavicular notch on the manubrium.

Question 9

what join does the clavicle and the sternum make up

Answer 9

sternumclavicular joint

Question 10

what type of bone are the ribs

Answer 10

flat bone

Question 11

how many PAIRS ribs are there

Answer 11

12 PAIRS of ribs

Question 12

what does the rib number correspond to…

Answer 12

Rib number corresponds to the thoracic vertebrae to which it attaches

Question 13

how do ribs differ in the length form the 1th to the 12th rib.

Answer 13

Ribs increase in length 1st – 7th, decrease in length to the 12th rib

Question 14

what type of attachment does ribs 1-7 have with the sternum (hint: A or P, strip of … ?)

Answer 14

1-7 have direct anterior attachment to the sternum with a strip of costal cartilage

Question 15

what type of ribs are ribs 1-7 ?

Answer 15

true ribs

Question 16

why are ribs 1-7 true ribs ?

Answer 16

directly articulate with the sternum

Question 17

what are the articulation between the sternum and the ribs called ?

Answer 17

sternocostal joints

Question 18

do Ribs 8 – 12 attach to the sternum ?

Answer 18

NO

Question 19

what are Ribs 8 – 12 classed as ?

Answer 19

false ribs

Question 20

how do Ribs 8-10 attach to the sternum ? (hint 7th rib involved )

Answer 20

Ribs 8-10 connect into the cartilage of the 7th rib to connect to the sternum

Question 21

why are ribs 11-12 classed as floating ribs ?

Answer 21

Ribs 11-12 are floating ribs because they are attached only to the vertebrae posteriorly

Question 22

what would you class ribs 11-12 as ?

Answer 22

floating ribs

Question 23

what are the space between the ribs called ?

Answer 23

Space in between the ribs are intercostal spaces

Question 24

label and describe the features of a typical

Answer 24

see throax file for answer (slide 17)

Question 25

which ribs are not typical

Answer 25

1,2,11,12

Question 26

what is facet

Answer 26

is an almost flat surface on the bone

Question 27

what is a demi facet

Answer 27

is half the size of a facet, and this is where the head of the rib or the costal cartilage articulates with the vertebrae.

Question 28

what are the 4 main features of the typical rib

Answer 28

Anterior end
head
neck
Tubercle
costal grooves

Question 29

describe the features of the anterior end

Answer 29

concavity for costal cartilage

Question 30

describe the features of the head

Answer 30

posterior end, contains facets for articulation with vertebrae

Question 31

describe the features of the neck

Answer 31

narrow portion below the head

Question 32

describe the features of the costal grooves

Answer 32

inferior border, attachment for intercostal muscle and contains intercostal vessels and nerves

Question 33

where is the costotransverse joint ? hint: rib and vertebrae involved

Answer 33

Tubercle facet (part of RIB) articulation with transverse process of the vertebrae.

Question 34

Describe he features if the tubercle

Answer 34

facet for articulation with transverse process of vertebra

Question 35

where is the costovertebral joint?

Answer 35

Head articulation with vertebra

Question 36

what are the atypical ribs

Answer 36

1,2,10,11,12

Question 37

list the features of some the atypical ribs

Answer 37

-1,10,11,12: all have of one articular facet on the head
- 2nd rib is twice as a large as 1st rib

Question 38

where are the Costochondral Joints ?

Answer 38

Articulation of 1st – 10th ribs anterolaterally with the costal cartilages

Question 39

on a chest x- ray which ribs (anterior or posterior ribs) seem to be more obvious ?

Answer 39

posterior aspect of the ribs where they articulate with the vertebrae. see file for clarity

Question 40

main features of a vertbrae

Answer 40

-Body – heart shaped, 2 demi-facets on either side (superior and inferior) 4 costal facets articulate with the heads of the ribs

-Costal facets – on the transverse processes articulate with tubercles of rib (T1-T10 only)

-Spinous processes – long, slant inferiorly, increasing protection to spinal cord

Question 41

how may sections are to the right lobe of the lung

Answer 41

3

Question 42

how many sections are to the left side of the lung

Answer 42

2

Question 43

what is the Horizontal fissure

Answer 43

i

Question 44

where is the oblique fissure

Answer 44

line before inferior angle on each lobe

Question 45

where is horizontal fissure found

Answer 45

right lobe
between superior and middle lobe