Show:
The Heart
Blood Vessels
Blood
Health and Disorders
This and That
100
These help control the direction of blood flow in the heart.
What are valves
100
Tiny vessels where oxygen moves from the red blood cells into the body cells
What are capillaries
100
the part of blood that is composed mostly of water.
What is plasma?
100
a waxy fatlike substance that can build up in arteries
What is cholesterol
100
A Sphygmomanometer is used to measure this
What is blood pressure
200
Blood pressure is caused by the force of this part of the heart
What is ventricles
200
These walls must be very thick to withstand the high forces of blood pumped by the heart
What are artery walls?
200
the blood cells that defend the body against disease
What are white blood cells?
200
This occurs when the blood flow is cut off to a portion of the heart muscle
What is a heart attack
200
the network of vessels that returns fluid to the blood stream.
What is the lymphatic system
300
A group of cells that recieves messages about the body's oxygen needs and sends out signals to adjust the heart rate.
What is the pacemaker
300
This vessel has valves that prevent backward flow of blood, returns blood to the heart, and contracts to push blood along.
What are veins?
300
cell fragments that help form blood clots
What are platelets?
300
A disorder in which a person's blood pressure is consistently higher than normal
What is hypertension
300
Liquid part of blood that transports needed materials and wastes throughout the body
What is plasma
400
The right ventricle is a structure that pumps blood into arteries leading to this part of the body
What are the lungs
400
oxygen-rich blood is carried to the heart in this artery.
What is coronary
400
at the sight of a wound, platelets set of reactions that eventually cause the production of this chemical.
What is fibrin?
400
These behaviors can help to decrease your risk of developing cardiovascular problems
What is eating a balanced diet low in sodium, cholesterol, and fat, exercising regularly, and avoid smoking.
400
the blood cell that transports oxygen
What is red
500
The lower chambers of the heart
What are the ventricles?
500
the largest artery in the body
What is the aorta?
500
a protein that binds easily to oxygen
What is hemoglobin?
500
process by which molecules move from an area of higher concentration to an area of lower concentration
What is diffusion