thoracic anatomy Flashcards

1
Q

what does Thoracic cage contain ?

A

Sternum
Ribs
Costal cartilage
Thoracic vertebrae

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2
Q

what is the functions of the thoracic cavity

A

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

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3
Q

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

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

A

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

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4
Q

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

A

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

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5
Q

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

A

sternum angle

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6
Q

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

A

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

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7
Q

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

A

xphisternal joint

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8
Q

where doe does clavicle attach too ? (be specific )

A

clavicular notch on the manubrium.

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9
Q

what join does the clavicle and the sternum make up

A

sternumclavicular joint

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10
Q

what type of bone are the ribs

A

flat bone

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11
Q

how many PAIRS ribs are there

A

12 PAIRS of ribs

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12
Q

what does the rib number correspond to…

A

Rib number corresponds to the thoracic vertebrae to which it attaches

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13
Q

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

A

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

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14
Q

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

A

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

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15
Q

what type of ribs are ribs 1-7 ?

A

true ribs

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16
Q

why are ribs 1-7 true ribs ?

A

directly articulate with the sternum

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17
Q

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

A

sternocostal joints

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18
Q

do Ribs 8 – 12 attach to the sternum ?

A

NO

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19
Q

what are Ribs 8 – 12 classed as ?

A

false ribs

20
Q

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

A

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

21
Q

why are ribs 11-12 classed as floating ribs ?

A

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

22
Q

what would you class ribs 11-12 as ?

A

floating ribs

23
Q

what are the space between the ribs called ?

A

Space in between the ribs are intercostal spaces

24
Q

label and describe the features of a typical

A

see throax file for answer (slide 17)

25
which ribs are not typical
1,2,11,12
26
what is facet
is an almost flat surface on the bone
27
what is a demi facet
is half the size of a facet, and this is where the head of the rib or the costal cartilage articulates with the vertebrae.
28
what are the 4 main features of the typical rib
Anterior end head neck Tubercle costal grooves
29
describe the features of the anterior end
concavity for costal cartilage
30
describe the features of the head
posterior end, contains facets for articulation with vertebrae
31
describe the features of the neck
narrow portion below the head
32
describe the features of the costal grooves
inferior border, attachment for intercostal muscle and contains intercostal vessels and nerves
33
where is the costotransverse joint ? hint: rib and vertebrae involved
Tubercle facet (part of RIB) articulation with transverse process of the vertebrae.
34
Describe he features if the tubercle
facet for articulation with transverse process of vertebra
35
where is the costovertebral joint?
Head articulation with vertebra
36
what are the atypical ribs
1,2,10,11,12
37
list the features of some the atypical ribs
-1,10,11,12: all have of one articular facet on the head - 2nd rib is twice as a large as 1st rib
38
where are the Costochondral Joints ?
Articulation of 1st – 10th ribs anterolaterally with the costal cartilages
39
on a chest x- ray which ribs (anterior or posterior ribs) seem to be more obvious ?
posterior aspect of the ribs where they articulate with the vertebrae. see file for clarity
40
main features of a vertbrae
-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
41
how may sections are to the right lobe of the lung
3
42
how many sections are to the left side of the lung
2
43
what is the Horizontal fissure
i
44
where is the oblique fissure
line before inferior angle on each lobe
45
where is horizontal fissure found
right lobe between superior and middle lobe