Lecture 13: Thorax Flashcards
1
Q
superior thoracic aperture borders
A
- posterior: body of T1
- lateral: rib 1
- anterior: manubrium
2
Q
superior thoracic aperture contents
A
- esophagus
- trachea
- vagus nerve
- sympathetic trunks
- phrenic nerve
- carotids
- subclavian
- vertebral arteries
- jugular vein
- sternohyoid
- sternothyroid
3
Q
inferior thoracic aperture borders
A
- posterior: body of T12
- lateral posterior: ribs 11 & 12
- lateral anterior: costal cartilage of ribs 7-10
- anterior: xiphisternal joint
- covered by the respiratory diaphragm
4
Q
inferior thoracic aperture contents
A
- esophagus
- vagus nerve
- sympathetic chain
- inferior vena cava
- descending aorta
- azygos vein
5
Q
what is significant about the shape of the thoracic cavity?
A
- upside down cone
- rigidity
- protection
- allows air pressure changes in cavity
- immobile muscle attachment
- supports arms
6
Q
what is the mediastinum?
A
region between R and L pleural cavities
7
Q
mediastinum contents
A
- pericardial cavity
- esophagus
- trachea
- great vessels
- nerves (phrenic and vagus)
8
Q
suspensory (Cooper’s) ligaments
A
connect breast structures to pectoral fascia
9
Q
lymph drains from the ____ to the ____ of the breast
A
periphery; center
10
Q
intra-articular ligament
A
from crest of rib head to IV disc
11
Q
radiate ligament
A
anterior costovertebral capsule thickening
12
Q
lateral costotransverse ligament
A
prevents lateral separation
13
Q
superior costotransverse ligament
A
prevents inferior separation
