1. Day 1: Cardiovascular System The vessels…
Home Learning
Day 1: Cardiovascular System The vessels…
As you watch this video, complete the Frayer Model
Define:
Function:
Analogy:
Types:
Vessels

2. Day 1: Cardiovascular System The vessels
The Vascular System is made up of many connective tunnels through which blood flows
Capillary is the bridge between veins and arteries…they are so small that materials in blood cell diffuse through them
The vascular system is made up of three main types of blood vessels:
1. ARTERIES
3. VEINS
HEART
CIRUCLATION OF BLOOD THRU THE VESSLES
ARTERIOLES
(smaller Arteries)
VENULES
(smaller Veins)
Exchange of materials through diffusion
CAPILIARIES
2. CAPILIARIES

3. Day 1: Cardiovascular System Arteries
Arteries are blood vessels that carry blood, rich in oxygen, from the heart to other parts of the body.
The large arteries have thick walls of elastic-like tissue that enables them to withstand the blood pressure created by the heart’s beating.

4. Day 1: Cardiovascular System The vessels….Capillary Bed
Capillaries are tiny, thin-walled blood vessels that connect arteries to veins and are located in all body tissues.
Capillaries are so small in diameter that blood cells pass through in a single file.

5. Day 1: Cardiovascular System The vessels….Capillary Action
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Day 2 Lesson
Day 1: Cardiovascular System The vessels….Capillary Action
CAPILLARIES ALLOW FOR:
nutrients, oxygen, and water to diffuse out of blood to the tissues.
Waste products, like carbon dioxide, diffuse from the tissues into the blood.

6. Day 1: Cardiovascular System Veins
Veins are the blood vessels that return blood to the heart from all parts of the body.
Veins have valves that aid the return flow of blood and prevent the blood from reversing flow.

7. Cardiovascular System Check for Understanding
Comparative View between Arteries and Veins
Click to Play

8. Day 1: Cardiovascular System Check for Understanding
Arteries (aa.)
Veins (vv.)
Direction of flow
Blood Away from Heart
Blood to Heart
Pressure
Higher
Lower
Walls
THICKER: Tunica media thicker than tunica externa
THINNER: Tunica externa thicker than tunica media
Lumen
Smaller
Larger
Valves
No valves