Circulatory System
The chamber of the heart receiving deoxygenated blood from the superior vena cava
Right Atrium
Largest artery in the body
Aorta
A vessel that carries blood away from the heart
Artery
Commonly called the windpipe, this structure is strengthened by rings of cartilage.
trachea
smaller branches from the bronchi that enter the lungs
Bronchioles
What are the four main components of blood?
The four main components of blood are red blood cells, white blood cells, platelets, and plasma.
What is the role of hemoglobin in the blood?
Hemoglobin is a protein in red blood cells that binds to oxygen in the lungs and carries it to tissues throughout the body.
The state of balance internally between all systems in living things responding outward stimuli
Homeostasis
These air passages divide from the windpipe at the bottom of the trachea.
bronchi
Bones that protect the lungs and heart
Rib cage
Molecule carrying oxygen on red blood cells
Hemoglobin
Occurs when the artery wall becomes weak and causes balloning effect
Aneurysm
How many chambers are in the heart
Four
his process is the result of air rushing into the lungs
Inhalation
Physical activity causes breathing rate to do what?
Increase
The force of blood against the walls of the blood vessels
Blood pressure
A vessel that carries blood towards the heart
Vein
What is the difference between arteries and veins?
Arteries carry oxygenated blood away from the heart, while veins carry deoxygenated blood back to the heart.
This contracts and causes air to rush into the chest cavity
Diaphragm
Normal adult respirations range
12-20 breaths per minute
Connects arteries to veins and are responsible for exchanging gases within the body.
Capillaries
Normal range of heart rate for an adult
60-100
What chamber pumps oxygenated blood to the organs of the body
What are the tiny balloon-like sacs that look like bunches of grapes where carbon dioxide in the blood is exchanged for oxygen?
Alveoli
The act of drawing in oxygen and letting out CO2 through gas exchange in the lungs
Define RESPIRATION