Answers
1. pulmonary
what 2 circuits are in the heart?
2. systemic
- supply lungs
- Blood absorbs O2, eliminates CO2
- Driven by right chambers of heart
pulmonary circuit
- Includes all other tissues of body
- Oxygen/nutrient delivery to tissue, carbon dioxide/waste
pick-up
- Driven by left chambers of heart
systemic circuit
· Located middle portion of the mediastinum
where is the heart located? o Portion of thoracic cavity
Located anterior to vertebral column, posterior to ster-
num, medial to pleural cavities
great vessels (aorta, pulmonary vessels, superior vena
what does the middle portion of mediastinum contain?
cava)
how many layers of connective tissue surround the heart? what are there names?
, -3
- Fibrous pericardium