Lesson 19 (Part 1) Flashcards
Hemodynamic
Study of blood flow
What is used to detect the motion of the heart and blood flow?
The Doppler effect
What will Doppler Ultrasound detect?
Quantify and evaluate blood flow
What makes up the circulatory system? (6)
- Heart
- Arteries
- Arterioles
- Capillaries
- Venules
- Veins
How much blood do humans have?
5L
What does blood consist of? (4)
- RBC
- WBC
- Platelets
- Plasma
What is the function of blood?
- Carries O2 and CO2
- Transports nutrients
- Gets rid of wastes
- Provides colour to skin
How many chambers does the heart have?
4
- 2 atria
- 2 ventricles
What kind of muscle makes up the heart?
Cardiac muscle
How many valves does the heart contain?
4
What is the flow path of blood? (14)
- SVC/IVC
- Right atrium
- Tricuspid valve
- right artrioventricular valve - Rt ventricle
- Pulmonary valve
- semilunar - Pulmonary arteries
- Lungs
- Pulmonary veins
- Left atrium
- Mitral valve
- bicuspid
- left atrioventricular valve - Left ventricle
- Aortic valve
- Ascending aorta/aortic arch
- Carotid/subclavian arteries
- upper body - Descending aorta
- lower body
What kind of blood is in the pulmonary arteries?
Deoxygenated blood
- away from the heart
What happens in the lungs?
Gas exchange
What kind of blood do pulmonary veins carry?
Oxygenated
- towards the heart
Systol
Heart contraction
Diastol
Heart relaxing
Do arteries have valves?
No
What is the 1 valve arteries have?
The aortic valve
What kind of flow is in arteries?
Pulsatile flow
Are arteries compressible?
Generally no
What do arteries become?
Arterioles
Do veins have valves?
Yes
What kind of flow is in veins?
Less pulsatile flow
Are veins compressible?
Yes
