Lesson 9 (Part 1) Flashcards
What are the contents of the thorax? (4)
- Bony framework
- Cavities
- Vital organs
- Vascular structures
What makes up the bony framework of the thorax? (3)
- Thoracic spine
- Ribs
- Sternum
What are the cavities located in the thorax? (4)
- Thoracic
- Mediastinal
- Pleural
- Pericardial
What are the 2 vital organs of the thorax?
- Heart
2. Lungs
What are the vascular structures found in the thorax? (4)
- Aorta
- IVC
- SVC
- Pulmonary vessels
What makes up the anterior boundaries of the thorax? (5)
- Sternum
- Ribs
- Intercostal
- Chest wall muscles
- Skin
What make up the posterior boundaries of the thorax? (6)
- Spine
- Scapula
- Ribs
- Intercostal
- Back muscles
- Skin
What makes up the superior boundary of the thorax?
The thoracic inlet
What makes up the inferior boundary of the thorax? (2)
- Diaphragm
2. Thoracic outlet
How many thoracic vertebrae are there?
12
What attaches to the thoracic vertebrae?
Pairs of ribs
True ribs
Ribs that attach directly to the sternum
False ribs
The first three ribs that attach to cartilage of the rib above it
What is another name for false ribs?
Vertebro-chondral ribs
Floating ribs
The last 2 ribs that are not attached to cartilage
What is the function of the sternum? (2)
- To protect the organs
2. Support the head and neck
What makes up the sternum? (3)
- Manubrium
- Body
- Xiphoid process
Where is the manubrium?
It is the superior portion of the sternum
Where is the body of the sternum?
It is the middle portion
Where is the xiphoid process?
It is the inferior portion of the sternum
Aperture
Hole
What covers the outlet of the thorax?
The diaphragm
What is between the body and the transverse process?
Pedicle
What is between the spinous process and transverse process?
Lamina
