Respiratory System
The main organs of the respiratory system
lungs
The main organ of the circulatory system
heart
the body system that contains the heart and the blood vessels and moves blood throughout the body.
circulatory system
main point of entry for air in the body
nose
tubes that transport blood throughout the body
blood vessels
body system that exchanges gases between the body and the environment.
respiratory system
What are the three main components of the circulatory system?
blood, blood vessels, and heart
What are red blood cells?
disk shaped cells that carry oxygen throughout the body
What do white blood cells do?
two large tubes that carry air from your windpipe to your lungs.
Bronchi
the trachea splits into two of these
bronchi
What four parts is the blood made out of?
red blood cells, white blood cells, plasma, platelets
the organs in the chest that supply the body with oxygen and remove carbon dioxide
lungs
the two chambers of the heart that receive blood returning from the body and lungs
atria
a tube-shaped airway that carries air to and from the lungs. (windpipe)
Trachea
this is where gas exchange occurs
alveoli
These help with clotting when you have an injury
platelets
the lower chambers of the heart that receive blood from the atria and pump it to the body's tissues and lungs
ventricle
a tube-shaped organ in the neck that's essential for breathing, swallowing, and talking. (voice box)
What is plasma?
yellowish fluid part of the blood that contains nutrients, water, and carbon dioxide.
describe the path of air throughout the body in four steps
1. air enters at the nose/mouth & passes through pharynx & larynx. Trachea carries air down.
2. bronchi divide & lead to alveoli sacs in lungs
3. Alveoli puts oxygen into the blood
4. Diaphragm relaxes, pushing carbon dioxide out when you exhale.
Draw the heart and label it's four chambers
What is your diaphragm?
thin, dome-shaped muscle that helps you breathe and separates the lungs from your stomach and intestines.
Describe the three types of blood vessels
1. arteries- carry blood away from the heart. thickest walls.
2. veins- carry blood back towards the heart. Not as muscular or stretchy as arteries
3. capillaries- tiny blood vessels that enable oxygen and nutrients to move throughout the body. thinnest walls
tiny grape shaped air sacs in the lungs where oxygen and carbon dioxide are exchanged during breathing.