Deep Breath
This is the “range” of breaths per minute for an average human.
12-20 (10-22 acceptable)
Without this, cells cannot survive. (Hint: required for aerobic cellular respiration)
oxygen
This carries air to and from the lungs.
The airway (trachea or bronchi also acceptable)
These tiny sacs are in your lungs that exchange gases.
alveoli
This part of the skeletal system protects your lungs.
Rib cage
The trachea is made of this. (Do not say “cells or matter”)
cartilage
These send signals to your diaphragm and rib muscles automatically in order to help you breathe. (Answer is NOT “morons”)
neurons (in the brain)
THIS MUSCLE is located beneath the lungs and is important because it allows your lungs to contract.
diaphragm
Exchanging these is the main job of the respiratory system.
gases (oxygen and CO2 acceptable)
On cold days, THIS can be visible when you exhale.
water vapor
THIS word describes how oxygen gets into the bloodstream. (Hint: begins with ‘d’ and rhymes with ‘confuses’ or ‘confusion’)
diffuses/diffusion
THIS is a flap that prevents food from entering the “wrong pipe”.
epiglottis
THIS type of automatic muscular response takes place when you are coughing or choking as a result of a food blockage in the trachea.
involuntary
THESE are the most important organs in the respiratory system, and are considered to be part of the excretory system as well.
lungs
When you hold your breath, a buildup of THIS gas forces you to exhale.
CO2/carbon dioxide
THESE are the 2 main waste products that you get rid of during an exhale.
CO2 and water vapor
Some people are born with THIS unfortunate condition, which narrows the airway passages, making it difficult to breath at times.
asthma
When you exhale, THESE muscles contract and these muscles relax. (Two answers required).
ribs/diaphragm
A mouse takes this many breaths per minute.
160 (100-200 acceptable)
THIS is where your respiratory system BOTH starts and ends.
nose/mouth