Circulatory system Flashcards
What is the function of the circulatory system?
Carries oxygen and nutrients to the cells throughout the body and takes away carbon dioxide and waste from the cells
What are the three parts that the circulatory system is made up of?
Heart, blood, and blood vessels
Life expectancy of a male?
75 years
Life expectancy of a female?
80 years
What is the size of your heart?
Fist
How many pounds dose your heart weigh?
1 pound
Your heart is made up of a specialized muscle tissue which is called ___________?
Myocardium
_________ is a thin membrane that protects the heart?
Pericarduim
What also protects your heart?
The ribs and sternum
How many times dose the heart beat in a day?
100,000 times
How many times dose your heart beat in a life time?
2.5 billion times
How many gallons of blood dose your heart pump in a lifetime?
100 million gallons
Your heart is divide into _______?
Halves
Each half is dived into the ______ and ______ chambers?
Upper and Lower
The upper chamber is called the _____?
Atrium
The atrium _______ blood from the rest of the body?
Receives
The lower chamber is called the ________?
Ventricle
The Ventricle ____ blood to the rest of the body?
Pumps
Where is the heart located?
The middle of your chest tilted to the left
Does blood die, if so where?
Yes, it goes to the liver
What bone makes blood?
Marrow
What percent of blood is solid?
45%
What percent of blood is liquid?
55%
What are the solid materials in blood called?
Red blood cells, White blood cells, and Platelets
What do the Platelets do to the blood?
Form clots
The liquid materials in blood are called _______?
Plasma
Each heartbeat blood is ______ _______from the heart through blood vessels called __________?
Pushed away and Arteries
Arteries branch into thinner, smaller tubes called _________?
Arterioles
Arterioles lead into the smallest blood vessels in the body called _________?
Capillaries
Describe the Capillaries?
They are one-cell layer thick/they are very thin
Oxygen and nutrients as well as waste products are exchanged through the ___________?
Capillary wall
Capillaries connect _____ with ______?
Arteries with veins
______ are blood vessels that take blood back to the heart?
Veins
What is the pulmonary circulation?
The circulation of the blood between the heart and lungs
The largest artery in your body is _______?
Aorta
Where is the aorta loacted?
Heart
What is the Aorta function?
Pump blood to the rest of the body
_____ and _______ as well as _______are exchanged through the capillary walls
Oxygen, nutrients, waste products
What is the pulse?
The surge of blood through an artery
What is the pulse rate between adults?
60-100 beats per minute
What is the pulse rate between children?
80-100
Why do children have a higher pulse rate?
They are more active
What is blood pressure?
The pressure of blood against the arterial wall
What is the tool that measures the blood pressure?
Sphygmomanometer
What measures the peak pressure as the bentrice is contradicting?
Systolic pressure
What measures the pressure when the heart is relaxed?
Diastolic pressure
What is normal blood pressure?
120/80
What is low blood pressure?
90/60
What is high blood pressure?
140/90
What is high blood pressure called?
Hypertension
What is low blood pressure called?
Hypotension
Describe Plasma?
Yellowish liquid made up of water and proteins
What does the Plasma serve as?
The body’s transport system
What percent of our body is Red Blood Cells?
90%
What do Red Blood Cell carry?
Oxygen and Nutrients
In one drop of blood there are how many million red blood cells?
250 million
How long does the body take to produce new red blood cells?
One week
How long do red blood cells last?
120 or 4 months
What rate do red blood cells die?
8 million per second
What percent of you body weight is blood?
7%
What do white blood cells fight?
Infection
What do white blood cells produce?
Antibodies
For every ________ red blood cells, we have 1 per 2 white blood cell
1,000
How many chambers are in the heart?
4 chambers
When do your white blood cells increase?
When your body is fighting infection
If you have more white blood cells then red blood cells you have __________?
Leukocytosis
Describe platelets?
Long thin disks which contain anexeye that helps the blood clot
How long does it take for the blood to clot after injury or nose bleed?
6 to 10 minutes
What percentage of people are O blood type?
46%
What can O blood type of people can give blood to?
O,A,B,AB (ALL)
What can O blood people receive blood from?
O
What are O people called?
Universal donors
What percentage of people are A?
42%
What can A blood type of people give blood to?
A and AB
Who can A people receive blood from?
O and A
What percentage of people are B?
8%
What can B blood type of people give blood to?
B and AB
What can B blood people receive blood from?
O and B
What percentage of people are AB?
4%
What can AB blood type people give blood to?
AB
Who can AB blood type people receive blood from?
O,A,B,AB (ALL)
What are AB type people called?
Universal receivers
__________ is a type of protein found on 85% of all people
RH factor
______________ a red protein gives red blood cells there color
Hlemoglolboin
What is the number one killer of all men and women?
Cardiovascular disease (CVD)
What disease is present at birth?
Congenital heart defects
________ is abnormal sounds that are made as blood flows through the heart?
Heart Murmur
What is anemia?
Lack of iron
What is Leukemia called?
Cancer of the blood
What are the 4 values
Mitral, aortic, pulmonary, and tricuspid.
What are arrhythmias?
Irregular heartbeats
What is lack of blood supply of the heart ?
Heart attack
What is lack of blood supply of the brain?
Stroke
From the right atrium what valve does the blue blood go into?
Tricuspid valve
Tricuspid valve goes through the right ventricle and into what valve?
Pulmonary valve
The pulmonary valve blood goes through the pulmonary artery into the left lung to what vein into what atrium?
Pulmonary vein into the left atrium
Blood turns red in what vein?
Pulmonary vein
Red blood goes through the left atrium through what valve?
Mitral valve
Blood from the mitral valve goes through what ventricle into what valve?
Left, Aortic valve
After going through the aortic valve it goes through the largest artery in the body called?
Aorta
