Bones have a soft tissue, marrow. One type, red marrow, produces both red and white blood cells.
What is the connection between bones and the circulatory system?
100
The heart cannot pump enough blood to meet the body's needs. Organs may be damaged by lack of oxygen or nutrients.
What is heart failure?
200
The heart pumps blood into this. The walls stretch and are strong enough to stand the pressure.
What are arteries?
200
The flow of the blood from the heart through the arteries and veins back to the heart
What is circulation?
200
The blood shows up as blue near the wrist because it's the reflection of the particles in the blood being exposed to UV light.
Why is blood actually varying shades of red but shows up as blue near the wrist?
200
Heart muscles die and part of the heart is damaged. Arteries leading to the heart may be blocked.
What is heart attack?
300
They close to prevent blood from flowing backwards. When skeletal muscles contract, they squeeze nearby veins and help push blood to the heart.
What are valves?
300
The right side and left side are divided by thick wall. The right side pumps blood without a lot of oxygen to the lungs. The left side pumps blood to the rest of the body that has lots of blood.
What is heart?
300
The circulation of blood between your heart and lungs.
What is pulmonary circulation?
300
Abnormally high blood pressure. Can have risks such as heart attack, heart failure, or stroke.
What is hypertension?
400
A tiny blood vessel that allows an exchange between blood and body cells. Carbon dioxide and other wastes leave body cells and are carried away by blood.
What are capillaries?
400
A tiny blood vessel that allows an exchange between blood and cells in tissue. Nutrients, oxygen, and other substances must leave blood and get to your body's cells. The walls are so thin that the blood cells must form a single file line and file through.
What is capillaries?
400
The circulation of blood between the heart and the rest of the body.
What is systematic circulation?
400
Abnormally high blood pressure. Can have risks such as heart attack, heart failure, or stroke.
What is Atherosclerosis?
500
Receives de-oxygenated blood from the superior vena cava, inferior vena cava and coronary sinus.
What is right atrium?
500
The fluid part of blood. A mixture of water, minerals, nutrients, sugars, proteins, and other substances.
What is plasma?
500
Chest pain, breathing difficulty, heart enlargement, abnormal heart rhythm, abnormal retention of fluid in a given anatomical area.
What are the symptoms of Ischemic heart disease?
500
Congestive heart failure due to coronary artery disease.
The heart is not getting enough blood and oxygen.