Chapter 5-- The Ciculatory System Flashcards
What was the name of the person who first described how the way blood was flown around the human body
William Harvey(1578-1657)
Name 5 functions of blood
To transport oxygen to the cells
To transport food to the cells
To transport waste materials away from the cells
To help fight infection
To help keep the body at the correct temperature
Define tissue
A tissue is a group of cells with a similar structure and function
What is blood made up of
A straw colored liquid named plasma
Name 3 types of blood cells
Red blood cells
White blood cells
Platelets
What is the function of the red blood cell
Carry oxygen to the body cell
Function of the white blood cell
Fight infection
Function of platelets
Clot blood when blood vessels are damaged
What is plasma made out of
Mostly water and proteins
What makes a red blood cell red
Red blood cells have a red pigment called haemoglobin
Name the three types of blood vessels
Arteries veins and capillaries
Describe an arterie
Arteries have thicker walls that are very strong, they also have a smaller lumen than veins. They are usually deeper in the body than veins.
Describe a vein
Veins have thinner walls and are easier than arteries to damage but have thicker lumen
Describe the capillary
Capillaries are only 1 cell thick
What are valves in the heart for
To prevent backflow
Define cardiac
Cardiac means something to do with the heart
What is the heart made of
Cardiac muscles which side of the heart is
Which side of the heart has oxygenated blood in it
The left
Get a sheet of the heart and memorize it
U better do it now
What is the normal resting heart rate for an adult
Between 60 and 100 times a second
Why does exercise increase heart rate
Exercise requires energy
Name 4 organs of the circulatory system that work together
Heart and arteries
Heart and vein
Arteries and capillaries
Veins and capillaries
How does the heart and arteries work together
Arteries are the blood vessel that carry blood away from the heart and carry it towards the organs of the body
How does heart and vein work together
Veins are the blood vessels that carry blood away from the organs of the body and deliver it to the heart