Developmental Aspects of the Cardiovascular System Flashcards
1
Q
The heart develops as a simple tube and pumps blood by ________ of pregnancy
A
Week 4
2
Q
Heart becomes a four-chambered organ capable of acting as a double pump over the ________ (from 4th week of pregnancy)
A
Next 3 weeks
3
Q
- Carries nutrients and oxygen from maternal blood to fetal blood
- Fetal wastes move from fetal to maternal blood
A
Umbilical cord
4
Q
Carries nutrient and oxygen-rich blood to fetus
A
1 umbilical vein
5
Q
- Carry wastes and carbon dioxide-rich blood from fetus to placenta
- Fetal wastes all accumulates to the placenta
A
2 umbilical arteries
6
Q
Age related problems associated:
A
- Weakening of venous valves
- Varicose veins
- Progressive aterosclerosis
- Hypertension
- Coronary artery disease
7
Q
- Valves that prevent backflow
- Lesser venous return, affect cardiac output
A
Weakening of venous valves
8
Q
- Force, tension, and pressure
- Commonly found on the leg
A
Varicose veins
9
Q
Cholesterol build up
A
Progressive aterosclerosis
10
Q
- From loss of elasticity of vessels
- Smooth muscles and elastic fibers
- Allows expansion to accommodate high volume concentration of blood
A
Hypertension
