Anatomy of the CVS 1 Flashcards
What is the function of the arteries?
Carry oxygenated blood away from the heart
What is the function of the veins?
Carry deoxygenated blood towards to heart
What is the function of the capillaries?
Exchange nutrients and site of gas exchange.
What do lymphatics of the CVS do?
Drain excess extracellular fluid from tissues.
Name the two main circulations of the heart.
Pulmonary
Systemic
Describe the pulmonary circulation of the heart
Between the heart and lungs
Describe the systemic circulation of the CVS
Between the heart and the rest of the body
Name to two other less important circulations of the heart.
-Hepatic portal circulation
- Lymphatic system
What is the hepatic portal circulation?
Venous system which returns blood to from the digestive tract to the spleen and the liver.
Which organs does the hepatic artery supply?
Liver
Duodenum
Pancreas
Where does the heart lie?
In the middle mediastinum
What vertebral level is the mediastinum?
T4
Where does the mediastinum lie between?
Right and left pleurae.
Where does the mediastinum extend from and to?
Extends from the sternum at the front to the the vertebral column at the back.
The mediastinum contains all thoracic structures except for?
Lungs and pleura
Where does the aortic arch start and end?
T4
List the different parts of the mediastinum.
Superior mediastinum
Inferior mediastinum (posterior, middle and interior mediatsinum)
List the organs in the superior mediastinum.
Thymus
Oesophagus
Trachea
List the arteries of the superior mediastinum.
Aortic arch
Brachiocephalic trunk
Left common carotid artery
Left subclavian artery.
Lists the veins and lymphatics of the superior mediastinum.
Superior vena cava
Brachiocephalic veins
The arch of the azygos
Thoracic duct.
List the organs found in the posterior mediastinum.
Oesophagus