Quiz - Respiratory and Excretory System Flashcards
1
Q
What word best describes the pharynx?
A
Throat
2
Q
The rib muscles and diaphragm relax, and the chest cavity becomes _______.
A
Smaller
3
Q
Where does gas exchanges occur in the respiratory system?
A
in the alveoli
4
Q
What happens to cause air to be inhaled into the lungs?
A
The diaphragm contracts, moves down and opens the rib cage.
5
Q
Tiny filtering structures where urine is produced in the kidneys are?
A
nephrons
6
Q
What term do scientist use to describe the mechanical process in which air is pulled inside the body?
A
breathing
7
Q
During gas exchange, which substance moves from the alveoli into the bloodstream?
A
Oxygen
