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35 Cards in this Set
- Front
- Back
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What are the 3 jobs of this system?
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1. Carries nutrients and oxygen to cells
2. Picks up waste from cells 3. Carries hormones to regulate body functions |
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What are the major parts?
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Heart, Blood, and Blood Vessels
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What is the Heart?
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It is a Cardiac Muscle.
About the size of your fist. Has a left side and right side separated by a wall called the septum. |
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What does the right side of the Heart do?
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Pumps oxygen, poor blood to lungs
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What does the right side of the Heart do?
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Pumps oxygen, rich blood to body
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What are the 4 chambers?
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Upper Chamber - Right and Left Atrium
Lower Chamber - Right and Left Ventricle |
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Why are there chambers?
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To control blood flow in one direction only
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How much blood does your body have?
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5 liters of blood and your heart moves 70 mL everytime there are 17 beats
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What are the 4 main things in your blood?
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Plasma, Red Blood Cells, White Blood Cells, Platelets
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What is Plasma?
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The liquid part of blood, mostly made of water
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What are Red Blood Cells?
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Carry oxygen and give blood its color
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What are White Blood Cells?
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Fights off diseases made in bone marrow
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What are Platelets?
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Helps blood clot
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What chemical do Platelets have?
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Contains a chemical called Fibrin which produces threadlike fibers
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What is Hemophilia?
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A condition in which a person's blood does not clot
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What are the Types of Blood?
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A, B, AB, O
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What is an Antigen?
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A chemical from blood types that if the wrong antigen is in their blood type will cause type to clot
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What is Blood Pressure?
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Pressure of blood on artery wall when the heart contracts and relaxes
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What is Systolic Pressure?
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Pressure on artery wall when the heart contracts (90 - 140)
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What is Diastolic Pressure?
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Pressure on artery wall when the heart relaxes (50-80)
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How do people find their blood pressure?
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Blood Pressure Cuff
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What causes high blood pressure?
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Eating too much fat, too much salt, stress lack of excercise, smoking, genetics
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What can you do to lower blood pressure?
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Reduce fat intake, reduce salt intake, reduce stress level, exercise, stop smoking, nothing
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What are the 2 risks of High Blood Pressure?
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1. Heart Attack
2. Stroke |
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What is a Heart Attack?
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Heart does not get enough oxygen and shuts down (Myocardial Infarction)
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What's a Stroke?
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When an artery in the brain bursts
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Other Problems of Circulatory System
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- Hardening of the arteries (Artheroscleresis)
- Anemia, lack of oxygen due to lack of red blood cells |
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Ways to fix Problems
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Balloon Angioplasty - One of a balloon to extend artery wall to clear blocking
Coronary artery Bypass - Use of a vein from leg to create a detour for blood around a blockage Open Heart Surgery - Cut open the heart to repair a hole in septum of a valve that doesn't work properly Pacemaker - Installing a battery operated device to control regular heart beat |
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What are the risks of Low Blood Pressure?
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- Dizziness
- Faint |
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How do you find the target heart range?
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220 - Age
Age x 60 Age x 80 |
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What is Hemoglobin?
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A chemical that picks up oxygen - made in bone marrow
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What is the "lub-dub" sound of a beating heart?
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The valves closing
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What is the Donor Blood Type?
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O
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What is the Receiver Blood Type?
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AB
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What is RH Factor?
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If your blood does contain the protein, your blood is said to be Rh positive (Rh+). If your blood does not contain the protein, your blood is said to be Rh negative (Rh-).
This term comes from the Rheses Monkeys. |
