The Bony Rib Cage and Sternum Flashcards
1
Q
General roles of Trunk
A
-
muscle attachment
- rough areas
-
containment
- spaces
-
movement
- smooth areas
2
Q
Major reference point of trunk
A
vetebrae
3
Q
What cavities make up the Axial Cavities
A
-
Anterior cavity
- thoracic
- abdominopelvic
-
Posterior cavity
- cranial
- spinal
4
Q
What seperates the Thoracic and Abdominopelvic cavities?
A
- Diaphragm seperates Thoracic and Abdominopelvic
- Pelvic brim seperates Abdominal and Pelvic cavities
5
Q
What seperates the Cranial and Spinal Cavities?
A
Foramen Magnum
6
Q
Boundaries of the trunk?
A
- Thoracic walls
- Abdominal walls
- Superior Thoracic aperture
- Inferior Pelvic aperture
7
Q
What are the bony features of the thorax?
A
-
Bony features
- Sternum
- 12 pairs ribs
- 12 thoracic vertebrae
8
Q
Cartilagenous components of Thorax
A
-
Hyaline cartilage
- contributes elasticity and flexibility
-
Costal cartilage
- anterior ends of 1-12
-
Costal margin
- formed by costal cartilages of 7-10
9
Q
Superior thoracic aperture
A
- Oblique
- Points down anteriorly
10
Q
What binds the superior thoracic aperture
A
- posteriorly by T1
- laterally by medial border of 1st rib
- anteriorly by costal cartilage of 1st rib
- anteriorly by superior border of sternum
11
Q
Passage at superior thoracic aperture
A
- Trachea
- esophagus
-
nerves
- vagus
-
blood vessels
- subclavian
- carotid
12
Q
Inferior thoracic aperture
A
- Oblique
- Larger
- Points down posteriorly
13
Q
boundaries of inferior thoracic aperture
A
- posteriorly by T12
- post/lat by inferior border of rib 12
- post/lat by tip of rib 11
- ant/lat by costal margin
- anteriorly by xiphoid process of sternum
14
Q
What structures pass through diaphragm?
A
- Inferior vena canva at T8
- Esophargus at T10
- Descending aorta at T12
- Nerves
- Lymphatics
15
Q
The Sternum
A
- 3 parts
- Manubrium
- body
- Xyphoid
