Vocabulary
What is the cardiovascular system?
The cardiovascular system is composed of the heart, blood, and blood vessels. It helps maintain homeostasis by carrying nutrients to all the cells in your body and removing wastes from those cells. It also carries hormones around the body.
What are blood vessels?
Blood vessels are hollow tubes that carry blood throughout the body. There are 3 types of blood vessels in the cardiovascular system: veins, arteries, and capillaries.
Describe red blood cells.
Red blood cells are produced in the red bone marrow and contain a protein called hemoglobin. The RBCs transport oxygen from the lungs to the body.
What is hypertension?
Hypertension is abnormally high blood pressure. The higher the blood pressure, the greater the risk of a stroke, heart attack, kidney disease, or heart failure.
What does pulmonary mean?
Anything to do with the lungs.
What does vessel mean?
A vessel is anything that transports something.
What are arteries?
Arteries are blood vessels that carry blood away from the heart (except for the pulmonary artery). Arteries are the biggest blood vessels and have thick and strong elastic walls to carry lots of blood at high pressures.
Describe White blood cells.
White blood cells are part of the cardiovascular, lymphatic, and immune system. They are produced in the red bone marrow. The white blood cells help fight against bacteria and viruses in the body.
What is a stroke?
A stroke is when a blood vessel in the brain becomes clogged or torn. That part of the brain then dies due to lack of Oxygen. Without Oxygen, the brain cells would die.
What is the Septum?
The septum is any wall of the heart.
What does cardio mean?
of the heart.
What are veins?
Veins are blood vessels that carry blood to the heart (except for the pulmonary vein). Veins have valves to prevent the backward flow of blood.
What is the plasma?
The plasma is the liquid part of the blood. Te plasma makes up 55% of the total volume of blood, and it contains platelets, red blood cells, and white blood cells.
What is a heart attack?
A heart attack is when the cardiac muscle dies and a part of the heart is damaged. Arteries can become blocked, resulting in a clot and a lack of Oxygen. Because of this, the heart could stop working.
How does the cardiovascular system work with the skeletal system to help maintain homeostasis?
The cardiovascular and skeletal systems work together to maintain homeostasis by creating RBCs, WBCs, and Platelets. The bone marrow, located within certain bones, produces red blood cells, white blood cells, and platelets. These cells are then transported by the cardiovascular system to various parts of the body, playing a crucial role in oxygen transport, immune response, and blood clotting. If this didn't happen, we would lose a lot of blood, which could be fatal to the body.
What does vascular mean?
Vascular means vessels
What is a valve?
Valves are found in veins and the heart. They prevent blood from flowing backward.
What are platelets?
Platelets are small particles in the blood that create a blood clot when bleeding occurs. They have a very short lifespan (7-10 days). Platelets are produced in red bone marrow.
What is Heart Failure?
Heart failure occurs when is when the heart cannot pump enough oxygen to meet the body's needs. The brain, lungs, kidneys, and other organs could become damaged due to lack of oxygen/ nutrients, or the buildup of wastes and fat.
How do the cardiovascular and lymphatic systems work together to maintain homeostasis?
The cardiovascular and lymphatic systems work together to maintain homeostasis by keeping you healthy. The lymphatic system plays a crucial role in the immune response by transporting white blood cells and filtering out pathogens. The cardiovascular system circulates these immune cells throughout the body, enabling them to reach sites of infection or injury quickly. This helps the body heal from an injury quicker. If this didn't happen, cuts would take far longer to heal and lots of blood would be lost, which could be fatal.
What is the difference between pulmonary and systemic circulation?
Pulmonary circulation is the flow of blood between the heart and lungs, while systemic circulation is the flow of blood between the heart and body.
What are capillaries?
Capillaries are the smallest type of blood vessel (only 1 cell thick). They have thin walls to allow nutrients to pass in and out.
Describe the heart.
The heart is an organ and a muscle made of cardiac tissue. It is very small (about the size of your fist).
What is Atherosclerosis?
Atherosclerosis is fatty buildup inside of blood vessels. This causes the blood vessels to become more narrow and less elastic, which could result in a lack of blood, oxygen, and nutrients.
What is the path of blood throughout the body?
1) Inferior Vena Cava/Superior Vena Cava
2) Right Atrium
3) Tricuspid Valve
4) Right Ventricle
5) Pulmonary Valve
6) Pulmonary Artery
7) Lungs
8) Pulmonary Vein
9) Left Atrium
10) Mitral Valve
11) Left Ventricle
12) Aortic Valve
13) Aorta