Ribs and Sternum

Question 1

Thoracic skeleton

Answer 1

Includes the twelve pairs of ribs, twelve thoracic vertebrae, the sternum, two clavicles, two scapulae.

Question 2

True ribs

Answer 2

Pairs 1 to 7, attach directly to the sternum via individual segments of hyaline cartilage

Question 3

False ribs

Answer 3

pairs 8 to 10 share combined cartilage to reach the sternum

Question 4

Floating ribs

Answer 4

Pairs 11 to 12, short and fail to reach adjacent ribs or the sternum

Question 5

Articular Facets

Answer 5

Two

form joins with the bodies of two adjacent throacic vertebrae costal rib facets

Question 6

Vertebral portion of the rib

Answer 6

Includes the head

Narrow neck and tubercle

Question 7

Tubercle

Answer 7

Forms a joint with the transverse process costal facet of the thoracic vertebra at the same level

Question 8

Rib angle

Answer 8

Sudden bend toward the midline in the rib bone.

Question 9

Costal groove

Answer 9

Inferior surface of the rib, narrow

For the costal VAN that travel along the chest wall

Question 10

Sternal Extremity

Answer 10

Extends anteriorly to join with a costal cartilage, forms a movable joint with the sternum.

Question 11

Costal cartilage

Answer 11

With age the flexibility of the costal cartilages is gradually lost as the tissue ossifies to eventually become bone (In the sternum)
Causing decrease in the ability to inhale deeply or to produce a forceful cough = pneumonia

Question 12

First ribe

Answer 12

Has a head, neck, tubercle for articulation with the thoracic vertebrae
Contains a single articular facet
Greatest curvature of all the ribs
Includes the scalene tubercle

Question 13

Scalane tubercle

Answer 13

For attachment of the anterior scalene neck muscle

Question 14

Sternum

Answer 14

3 bones
Upper - Manubrium
Middle - Body of the sternum
Lower - Xiphoid process

Question 15

Xiphoid process

Answer 15

Cartilaginous until about middle age when it begins to ossify
Can be snapped off during CPR if hands are too low`

Question 16

Sternal Angle

Answer 16

Located btw the Manurbium and Body of the sternum

Second ribs articulate on either side

Question 17

Exiphisternal Junction

Answer 17

Union of the xiphoid process with the body of the sternum

Location where the seventh ribs join the sternum

Question 18

Clavicular Notch

Answer 18

Either side of the manubrium

Forms a synovial joint with the medial end of the clavicle

Question 19

First costal noth

Answer 19

Where the sternal extremity of the first rib also articulates with the manubrium

Question 20

Suprasternal (Jugular notch)

Answer 20

Superior margin of the manubrium that is briged by the interclavicular ligament extending btwn the two clavicls