HEART ANATOMY
How many AV & SL Valves are there?
2 each, 4 total
How many pulmonary veins are there?
4
Why is blood red?
Hemoglobin carries oxygen
What is the respiratory system designed for?
Gas exchange
Where does blood enter the heart?
IVC & SVC
Where does blood exit the heart?
Aorta
Where does the electrical impulse for heartbeat originate?
SA (Sinoatrial) Node
What is known as your throat?
What is known as your vocal cords?
- Pharynx
- Larynx
What is the protective layer of the heart?
Pericardium
What is the muscle layer of the heart?
Myocardium
What is the function of arteries?
What is the function of veins?
- Carry deoxygenated blood from the body to the heart
What is known as your windpipe?
What is known as your airways?
- Trachea
- Bronchi
What is the inner lining of the heart?
Endocardium
What blood vessel is very thin?
Capillary
What type of system is blood flow?
Closed-circuit
What separates your upper & lower respiratory tracts?
Larynx
What is the cardiac output equation?
Q = HR x SV
Cardiac Output = Heart Rate x Stroke Volume
What is plasma primarily made of?
- 9%
- Water
List the 3 functions of the cardiovascular system
- Transportation
- Regulation
- Protection
What animal has the most flexible nasal structure?
What animal has the most rigid nasal structure?
- Horse
- Swine