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Circulatory System
| 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 |
Created by:
eblanchard
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