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Circulatory System

QuestionAnswer
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