cardiovascular system: functions

hormones, oxygen nutrients, waste

what does the cardiovascular system transport?

get the good stuff to the tissues and take the bad stuff away from the tissues

what are the functions of the cardiovascular system?

heart, blood vessels, blood

what are the three main components of the cardiovascular system?

pulmonary circuit and system circuit

what are the two pumps of the heart?

5 liters blood/min

at rest how much blood does the heart pump?

20-25 liters blood/min

at maximal exercise how much blood does the heart pump?

more

does an elite athlete pump more or less blood than a normal person?

right

what side of the heart is the pulmonary circuit on?

left

what side of the heart is the systemic circuit on?

pulmonary circuit

the blood that goes through your lungs to pick up oxygen and drop off carbon dioxide

systemic circuit

blood that travels everywhere else except through your lungs to pick up oxygen

true

t/f: the systemic circuit is the stronger pump

false

t/f: the left and right sides pump different amounts of blood

creates a one-way pressure gradient

what is the function of the heart?

for blood to flow

why is a pressure gradient needed in the heart?

highway for the blood

what is the function of blood vessels?

arteries, capillaries, and veins

what are the three types of blood vessels?

take blood away from the heart

what is the function of the arteries?

site of exchange, connect arteries to veins

what is the function of capillaries?

take blood to the heart

what is the function of veins?

transports oxygen and nutrients to the tissues; transports carbon dioxide and other waste products away from the tissues

what is the function of blood

plasma and formed elements

what is the blood made of?

liquid/water part of blood

what is plasma?

a) blood vessels that carry blood to the heart

veins are defined as

a) blood vessels that carry blood to the heart

b) blood vessels that carry deoxygenate blood

c) blood vessels that carry oxygenated blood

true

t/f: pressure in the systemic capillaries is greater than pressure in the systemic veins

b) transportation system

identify which of the following are primary functions of the cardiovascular system

a) communication system

b) transportation system

c) gas exchange

a) pump 1 = right atrium and right ventricle; pump 2 = left atrium and left ventricle

the heart is made up of two pumps. these two pumps are made up of…

a) pump 1 = right atrium and right ventricle; pump 2 = left atrium and left ventricle

b) pump 1 = right and left ventricles; pump 2 = right and left atria

b) pressure gradient

blood moves through the blood vessels due to a gradient. what type of gradient is being utilized?

a) temperature gradient

b) pressure gradient

c) concentration gradient

d) electrical gradient

a) blood vessels where exchange occurs

capillaries are defined as

a) blood vessels where exchange occurs

b) blood vessels that carry oxygenated blood

c) blood vessels that carry deoxygenated blood

b) blood vessels that carry blood away from the heart

arteries are defined as:

a) vessels where exchange occurs

b) blood vessels that carry blood away from the heart

c) blood vessels that carry oxygenated blood

a) arteries

blood moves through the blood vessels due to a gradient. when going from the left ventricle back to the atrium, where is blood pressure the greatest?

a) arteries

b) capillaries

c) veins