Show:
The Circulatory System
The Heart
The Respiratory System
Potpourri
More Potpourri
100
Needed substances are carried to the body's cells by what?
The Blood
100
If your pulse rate increases, is your heart beating faster or slower?
Faster
100
Where in the respiratory system does gas exchange occur?
In the alveoli
100
What part of the respiratory system divides into smaller and smaller tubes in a pattern that resembles branches of a tree?
Bronchi
100
As air travels from the outside environment into the lungs, what organs does it pass through?
Nose, pharynx, trachea, bronchi
200
What component (part) of blood carries oxygen to the body's cells?
Red Blood Cells
200
Exercise is important for cardiovascular health because...
it strengthens the heart muscle
200
The role fo the respirtory system is to bring what substance into the body?
oxygen
200
How big is your heart?
about the size of your fist
200
What is the main organ of respiration?
lungs
300
What are the main organs of the circulatory system?
Heart, Blood, Vessels
300
What structure of the heart prevents blood from flowing backward?
valve
300
During gas exchange, what substance moves from the alveoli into the blood?
oxygen
300
What color is oxygenated blood?
bright red
300
What is the name for the small grape-like structures at the end of the bronchi?
alveoli
400
What are the three types of vessels?
Arteries, veins, capillaries
400
When the ventricles contract, where is blood pumped?
Out of the heart (to the lungs or to the body)
400
What is the dome shaped muscle that plays an important role in breathing?
the diaphragm
400
What are the four main blood types?
A, B, AB and O
400
What factors can influence lung capacity?
size, health conditions like asthma, amount of physical exercise, smoking
500
What are the four components of blood?
Plasma, white blood cells, red blood cells, platelets
500
What are the four chambers of the heart?
left atrium, left ventricle, right atrium, right ventricle
500
How can smoking lead to emphysema?
By destroying lung tissue
500
What type of blood is known as the "Universal Donor"
Type O
500
Describe the path oxygenated blood takes as it leaves the lungs
lungs->left atrium->left ventricle->cells of the body->right atrium->right ventricle->lungs