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What is the path of blood?
- Superior vena cava
- Right atrium
- Right AV valve - triscupsid
- Right ventricle
- Pulmonary artery
- Lungs
- Pulmonary vein
- Left Atrium
- Left AV Valve - mitral
- Left Ventricle
- Aorta
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How many miles of blood vessls does the adult body contain?
Over 60, 000 miles of blood vessels.
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How much blood does the adult heart pump in one day?
The adult heart pumps over 4000 gallons of blood a day.
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How many times does the heart beat in a year?
The heart beats 30 million times a year.
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How many quarts of blood does the heart pump every minute?
The heart pumps 5 quarts of blood a minute.
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How much blood does the average adult body contain?
The average adult body contains 5 quarts of blood.
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How much blood does the average 3-year-old have in his/her body?
The average three year old has about 2 pints of blood in his/her boy.
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What are four risks factors for cardiovascular disease that cannot be changed?
- 1. Age
- 2. Gender (men more likely to get heart attack and earlier)
- 3. Race (blacks more likely)
- 4. Hereditary
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What are seven risk factors for cardovascular disease that can be changed?
- 1. High blood pressure
- 2. High cholesterol
- 3. Obesity/Oveweight
- 4. Inactivity
- 5. Alcohol
- 6. Tobacco
- 7. Stress
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What are the five major parts of the cardiovascular system?
- 1. Blood
- 2. Heart
- 3. Arteries
- 4. Veins
- 5. Capillaries
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Describe oxygenated vs. deoxygenated blood.
- oxygenated - bright red
- deoxygenated - dark red
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What are the functions of blood?
- 1. Carry oxygen to tissues
- 2. Collects carbon dioxide
- 3. Gathers waste materials
- 4. Carries hormones, enzymes, vitamins, and medicines
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What are red blood cells called?
Functions?
Life span?
What are they rich in?
- Red blood cells are called erythrocytes.
- They are rich in hemoglobin.
- They live abot 120 days.
- They assist with recovering CO2.
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What are platelets called?
Function?
Life span?
- Thrombocytes.
- Help control bleeding and release factors to stat coagulation.
- 10 day life span.
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What are white blood cells called?
Function?
Life span?
- Leukocytes.
- Help body fight infection.
- Live from days up to years.
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What are blood vessels.
Channels through which blood is distributed throughout body tissue.
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Where is blood produced?
- Produced in bone marrow:
- 1. adults - flat bone (ex. ribs, pelvis, spine)
- 2. children - all bones
Blood cells develop and seep in bloodstream.
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What is plasma?
Describe what it is made of/contain.
Function?
- Description:
- -straw colored
- -90% water
- -Ca, Na, K, Mg
- Function:
- help microbe fighting antibodies get to infection
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What are arteries?
Carry oxygenated blood away from heart except for pulmonary artery which carry blood from RV to lungs.
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What are the seven arteries that can be palpated and where are they located?
- 1. Carotid: located in neck, one on either side
- 2. Brachial: loacted in upper arm, between bicep and tricep
- 3. Sinus tarsi: medial side of the foot
- 4. Dosalis pedis: back of the foot
- 5. Radial: on radial side of wrist
- 6. Popliteal: behind knee
- 7. Femoral: upper leg, supply blood to lower extremity, lose blood quickly if cut
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What are veins?
Veins carry deoxygenated blood back to the heart, all except for the pulmonary vein which carrie oxygenated blood from lungs to RA.
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What are capillaries?
Smallest and most numerous of blood vessels. Connect vessels that carry blood away and to the heart. Exchange of gases, nutrients, and metabolic waste products.
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Describe the heart.
- 1. It is a muscular pump.
- 2. It circulates blood throughout all the tissues in the body.
- 3. It is the size of a closed fist.
- 4. It has four chambers: RA, LA, LV, RV.
- 5. Valve between atria and ventricles is called atrioventricular valve.
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What is sinoatrial node?
It produces a constant rhymthmic heart rate. It is located in the RA.
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Describe blood pressure readings.
Top number, bottom number.
Device used to measure.
- 1. Systolic number
- - first number
- - contraction phase of caridac cycle
- - heart is working
- 2. Diastolic number
- - second number
- - relaxation phase
- - smaller than systolic number
- Meausred using:
- - sphygmomanometer
- - stethoscope
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