Thoracic Viscera Flashcards
Determines the shape, position and movement of the internal organs
Body habitus
Four types of body habitus
Hypersthenic
Sthenic
Asthenic
Hyposthenic
-Bounded by the walls of the thorax
- extends from the superior thoracic aperture to the inferior thoracic aperture
Thoracic cavity
Separates the thoracic cavity from the abdominal cavity
Diaphragm
-Contains the lungs and the heart
-Organs of the respiratory
-cardiovascular
-lymphatic systems
-inferior portion of esophagus
-thymus gland
Thoracic cavity
Three separate chambers of the thoracic cavity
- pericardial
-right and left pleural cavities
-Separates the two pleural cavities
-In the middle between the two lungs
-contains all the thoracic structures , except lungs and pleurae
Mediastinum
How many chambers does the right lung have
Three
How many chambers does the left lung have
Two
Respiratory system contains
Pharynx
Trachea
Bronchi
Two lungs
Fibrous, muscular tube with 16 to 20 C shaped cartilaginous rings in its walls for strength
Trachea
The trachea is anterior to the (blank)
Esophagus
Trachea lies (blank)
Midline
Is a hooklike process on the last cartilage
Carina
Trachea divides or bifurcates at carina
- right primary bronchus
-left primary bronchus
Which bronchial is Shorter and wider and more vertical than the left
Right primary bronchus
Subdivisions of bronchial tree
Primary bronchi
Secondary bronchi
Tertiary bronchi
Bronchioles
terminal bronchioles
Where exchange of oxygen occurs
Alveolar sacs
Organs of respiration
Lungs
Which lung is shorter
Right lung is shorter than left because of presence of liver
During inspiration lungs move :
Inferiorly
During expiration lungs move :
Superiorly
Lungs move in three directions
1) inferior and superior
2) anterior and posterior
3) transversely
Enclosed in a double walled serous membrane sac called the pleura
Lungs
What pleura is the inner layer
Visceral pleura
What pleura is the outer layer
Parietal pleura
Area of thorax bounded by sternum anteriorly, spine posteriorly, And lungs laterally
Mediastinum
Structures associated in the mediastinum
Heart, great vessels, trachea, esophagus, thymus , lymphatics, nerves, fibrous tissue , fat
Aspirated foreign objects are more likely to lodge in the :
Right primary bronchus