| A | B |
|---|
| cilia | tiny, hair-like fibers that line the passages of the respiratory system, trapping impurities in inhaled air |
| trachea | the tube that branches off the throat and carries air toward the lungs; "WINDPIPE" |
| 5 Stages of Breathing | 1) the diaphragm contracts and fills the lungs with air; 2) muscles between the ribs expand the ribcage; 3) Oxygen is pulled out of the airsacs and into the blood stream; 4) CO2 is pulled ot of the blood stream and into the air sacs; 5) Diaphragm and ribcage release and push air out of the lungs |
| diaphragm | the dome shaped muscle beneath the ribcage that contracts when we inhale and relaxes when we exhale |
| 3 Functions fo the Respiratory System | 1) bring O2 into the body; 2) remove waste like CO2; 3) clean the air we breath |
| Structures of the Respiratory System | nose, mouth, epiglottis, trachea, lungs, bronchial tubes, and air sacs (300 million of them) |
| 3 Functions of the Skeletal System | 1) shape 2) protection 3) movement |
| 6 Structure of the Bone | 1) covering- periostium; 2) blood vessels; 3) compact bone; 4) yellow marrow; 5) spongy bone; 6) red marrow |
| 5 Types of Joints | 1) ball and socket; 2) hinge; 3) gliding; 4) pivot; 5) fixed |
| ball and socket joints | shoulder and hip |
| hinge joints | elbow and knee |
| gliding joints | wrist and ankles |
| pivot joints | neck |
| fixed or immovable joints | skull |
