ACTIVITY NO.4 : THE RESPIRATORY CROSSWORD
Aur is inhaled through the mouth and nose Air cavities called sinuses are in the head.
The air goes through the pharynx, and the trachea which divides and goes into each
lung. The trachea is made up of cartilaginous rings. The lungs add oxygen to the blood
and gets rid of carbon dioxide This exchange of gases takes place in the tiny
numerous ar sacs called alveoli by way of very small capillaries. Once the trachea has
divided, the two parts are the bronchial tubes. Your right lung has three lobes, your left
kung has two lobes. The phrenic nerve controls breathing which is an involuntary
process. The diaphragm and nb cage move down and inward when air is inhaled
Membranes surrounding the lungs and diaphragm are the pleura which provide a thin
watery cushion.
Down
1 vessels to body
2. ung with two loves
3. Strong breathing muscle
4 lung with three lobes
5 Thick fuid in the sinuses
6 eement of living things
7 wirdp ce
8. Brongnia!
9 protects ungs and heart
10. try has
11. let out at
12 air sacs
13. carries oxygen
14. desohbes sinuses
Across
1.using air
2.oragans for breating
3.opeing for air
4.membranes
5.4-chambered oragan
6.bone like substance
7.what we breathe
8.alveoli
9.part of lung
10.vessels to heart
11.describes bearthing
12.elemant we need to live