Circulatory Systems Flashcards
What are the functions of the circulatory system?
Transports oxygen and carbon dioxide to and from cells.
Transports nutrients and removes waste.
Transports chemical messages.
Transports heat around body.
Transports factors involved in immunity.
Homeostasis- maintaining a constant internal environment.
Which 2 steps of gas exchange concern the circulatory system?
Circulation
Cellular respiration
What are the three main type of blood vessels?
Arteries
Capillaries
Veins
Which blood vessel takes blood away from the heart under high pressure?
Arteries
Which blood vessel returns blood to the heart under low pressure?
Veins
Which blood vessel allows gases and molecules to exchange with tissues?
Capillaries
The contraction phase of the heart called_______ is coordinated with the relaxation phase called______.
Systole
Diastole