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Flashcards in Anatomy Deck (14)
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1

Closed circulatory system

Blood is always contained within blood vessels
Earth worm, human

2

What is a circulatory system

Transports material within the organism

3

What are the 2 types of closed circulatory systems

Single loop circulatory system
1 atrium so there is no oxygenated blood

Double loop circulatory system
Larger heart to pump more complex material and oxygen

4

Organs of the circulatory system

Heart
Blood vessels
Blood

5

Function of the circulatory system

Transports oxygen nutrients (including glucose) hormones, wastes, etc. to all parts of the body

6

Arteries

Carey blood away from ventricles of heart most are high in oxygen

7

Capillaries

Small thin sites exchange substances between blood and body cells

8

Veins

Carry blood toward ventricle of heart. Most are low in oxygen

9

Path of blood through the circulatory system
Step 1

Blood is used in the body and uses its oxygen

10

Path of blood through the circulatory system
Part 2

Deoxygenated blood returns through the inferior and superior vena cava into the right atrium

11

Path of blood through the circulatory system
Step 3

The right ventricle pumps blood to the lungs through the pulmonary artery

12

Path of blood through the circulatory system
Step 4

Newly oxygenated blood returns to the heart through the pulmonary vein in the left atrium

13

Path of blood through the circulatory system
Step 6

The left ventricle pumps newly oxygenated blood back to the body through the aorta

14

Open circulatory system

Blood (transport medium) is not always enclosed in blood vessels but may flow directly into body spaces
Grasshopper