Chapter 18 Cardiovascular System Flashcards
What are the main functions of the cardiovascular system?
Transport: O2, Hormones
Regulate: pH (7.35-7,45), heat, blood volume
Protection: clotting to prevent blood loss
What is the FCN of the CV system?
Blood, Blood vessels, Heart
The Cardiovascular system runs on what circuit?
Systemic Circuit- blood is pushed throughout the entire body
Arteries move blood what way?
Away from the heart
Veins move blood what way?
To the Heart
Pulmonary means what?
Lungs
Blood is composed of what?
plasma/serum, red (erythrocytes), and white blood cells (leukocytes)
When spun down in an anti-coagulent tube what is the clear stuff?
Plasma
When spun down in a normal tube what is the clear stuff?
Serum
What can be found in plasma/serum?
Gases, H2O, Hormones, and Nutrients
What are Erythrocytes?
red blood cells
What are the difference in Erythrocytes between mammals and reptiles/amphibians/Avian?
Mammals red blood cells are circular and have a small indent in the middle of the cell
Reptiles/Amphibians/Avains have cells that look oval and have a nuceli
What happens in capillary beds?
exchange of gases, wastes, and nutrients between bloodstream and body
Capillary beds are regulated by what?
Spinchters
What are the types of capillaries?
continuous, fenestrated,
sinusoids