Question | Answer |
Another name for the circulatory system | Cardiovascular |
The purpose of the circulatory system is to carry what two
substances to the the cells? | Nutrients and Oxygen |
The purpose of the circulatory system is to carry what two
substances from the cells? | Carbon Dioxide and Waste Products |
Carries blood away from the heart. | Arteries |
Carries blood to the heart. | Veins |
A group of cells that send out a signal that makes the
heart muscle contract. | Pacemaker |
Where is the pacemaker located? | Right Atrium |
The contraction of this ventricle exerts much more force because it pumps blood throughout the body. | Left Ventricle |
The contraction of this ventricle exerts less because it pumps blood to the lungs. | Right Ventricle |
This is a small blood vessel that is located between the veins and the arteries. | Capillaries |
The term that describes what happens in the capillaries when molecules move from a higher concentration to a lower concentration of pressure. | Diffusion |
There are about 750 red blood cells for how many white blood cells | One |
The walls of arteries are how many layers thick? | Three |
How many cells thick is a capillary. | One |
How many chambers does a human heart have? | Four |
What are the upper chambers of the heart? | Left and Right Atriums |
What are the lower chambers of the heart? | Left and Right Ventricle |
What causes blood to become bright red? | Oxygen |
What causes blood to become dull red? | Carbon Dioxide |
What is the only artery in the body that contains carbon dioxide. All other arteries carry oxygen. | Pulmonary Artery |
What is the only vein in the body that contains oxygen? All other veins carry carbon dioxide. | Pulmonary Vein |
When checking your blood pressure (example 120/80), the first numbers occurs when this part of the heart contracts. | Left Ventricle |
When checking your blood pressure (example 120/80), the second number occurs when this part of the heart relaxes. | Left Ventricle |
Which have thicker walls, arteries or veins? | Arteries |
What do you feel when you touch your wrist? | Pulse |
What do red blood cells carry? | Oxygen |
What are red blood cells made mostly of? | Hemoglobin |
About how long do red blood cells live? | 120 Days |
What contracts when you feel a pulse? | Left Ventricle |
About how many red blood cells die every second? | 2 million |
What produces new red blood cells? | Bone Marrow |
Small pieces of cells that help the blood to clot. | Platelets |
The liquid part of the blood. | Plasma |
About 90% of plasma consist of what? | Water |
What are the 4 major blood types? | A, B, AB, o |
Name for high blood pressure. | Hypertension |
Name for the buildup of fatty materials in the arteries. | Atherosclerosis |
This occurs when blood flow to part of the heart muscle is blocked. | Heart Attack |
What happens to cells in the heart that do not receive blood? | Die |
What is the name of the artery that supplies blood to the heart. | Coronary |
The fluid that the lymphatic system collects from fluid that has leaked out of blood vessels and is returned to the bloodstream. | Lymph |
A small knob of tissue in the lymphatic system that collects bacteria and other microorganisms that cause bacteria. | Lymph Node |