hello quizlet
Home
Subjects
Expert solutions
Log in
Sign up
Science
Biology
Anatomy
Chapter 42 Circulatory System
Flashcards
Learn
Test
Match
What diffuses into and out of the circulatory system?
Click the card to flip 👆
carbon dioxide, glucose and oxygen
Click the card to flip 👆
1 / 57
Flashcards
Learn
Test
Match
Created by
nducray
Terms in this set (57)
What diffuses into and out of the circulatory system?
carbon dioxide, glucose and oxygen
How does the circulatory system affect diffusion?
This system minimizes diffusion distance in animals with many cell layers and increases the surface area for diffusion
What is the function of the circulatory system?
To deliver glucose and oxygen to trillions of cells and to remove CO2 and Urea from trillions of cells
The basic three parts of the CS
Circulatory fluid (blood)
Set of interconnecting tubes (blood vessels)
A muscular pump (heart)
What is a closed CS?
blood is confined to vessels and is distinct from the interstitial fluid that is more efficient in transporting O2, CO2 and nutrients to tissues and cells
Due to higher blood pressure
What is a cardiovascular system?
A closed circulatory system in vertebrates
3 main types of blood vessels
Arteries, veins, capillaries
Blood flow differences in arteries and veins
Arteries carry blood AWAY from the heart to the capillaries
Veins carry blood to the heart from the capillaries
Where is the SA/V ratio highest in the circulatory system?
Capillaries --> Networks of capillaries (capillary beds) are the sites of chemical exchange between the blood and the cells
4 chambers of the heart
Left atrium, left ventricle, right atrium, right ventricle
