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
