The Circulatory System Flashcards
what does the heart do?
What is blood?
what are the components of blood?
what is plasma
what is platelets
Pulse rate
why are you able to feel the pulse more by your neck and less on your wrists?
The heart has the job of pumping blood through the circulatory system without rest
blood is a red substance that gets its color
from hemoglobin and blood is a mixture of different chemicals and cells
Plasma contains glucose ,amino acids, waste products ,urea and hormonse
plasma aids in blood clotting
platelets are small fragments in our blood that stop and or prevent bleeding
Plasma
platelets
red blood cells
white blood cells
when blood is pushed along the arteries it creates a pulse where you can feel at certain parts of your body
This is as a result of the heart being farther away from the wrists than the neck
Blood vessels
Vessels that carry blood away from the heart is called?
Vessels that carry blood to the heart is called?
1.Arteries
2.Veins
what is the center of the network?
Define
Double circulatory system
1the heart
In 1 circuit blood passes between the heart and lungs ——–
While in the lungs , blood absorbs the oxygen and then releases carbon dioxide and water vapor.
Then
In the other blood passes between the heart and the rest of the body
Substances such as oxygen and glucose are carried to the cells of the body and waste products such as carbon dioxide is removed
what is blood produced by?
Bone marrow
what is responsible for the pigment of your blood
Hemoglobin is responsible for the pigment of your blood and iron attaches to the pigment
Explain the flow of blood
Body - right auricle - right ventricle then lungs then left auricle - left ventricle - body
Arteries
n
veins
What are capillaries?
what are venules?
Carry blood away from the heart
carry blood to the heart
Arteries subdivide forming arterioles and finally a network of capillaries
capillaries is the exchange of materials between the blood and tissue cells
venules larger blood vessels when capillaries joined together
what are the two white blood cells?
lymphocytes
and
phagochytes
Atherosclerosis
Varicose veins
Is where fatty deposites /plaque grow inside arteries
Varicose veins are swollen enlarged veins
what are the units used for measuring blood pressure
diastole
diastolic pressure
systolic pressure
what are the parts of the circulatory system
mmHg millimeters of mercury
This is when the heart contracts
the pressure when the heart muscles relax
the pressure when the heart muscles relax
the heart
the blood
the blood vessels
