where air is warmed and further filtered

scientific name for the human throat

lower part of the throat

voice box at the top of the trachea

opening of the trachea that is covered by a flap of tissue

the two branches that the trachea divides into

smaller tubes of the bronchus

air sacs at the end of a bronchioles made of grape-like clusters

blood vessels that go to the lungs to exchange respiratory gases

In humans the respiratory gasses (O and CO2) are exchanged through walls of the ___ and ___ which are only one cell thick.

The vocal cords are located in the ___.

The large muscle that separates the thoratic and abdominal cavities is the ___.

The trachea branches off into two subdivisions that enter the lungs are called the ___.

what is this: diaphragm relaxes and moves up, the ribs move down and in, and the volume of the thoracic cavity decreases.

what is this: the ribs move up and out, the diaphragm moves down, and the volume of the thoracic cavity increases.

The process of breathing and the rate of breathing are mainly controlled by the respiration center in the ___ of the brain.

the exchange of gasses between the lungs and the blood is known as ___.

The exchange of respiratory gasses between the blood and the cell is known as ___.

Oxygen in a capillary combines with the hemoglobin of the red blood cells to form ___.

A small quantity of carbon dioxide dissolves in the blood plasma, while the remaining carbon dioxide combines with the hemoglobin to form ___.

Oxygen is transported by red blood cells by combining with ___ to form oxyhemoglobin.

Oxygen is transported by red blood cells by combining with hemoglobin to form ___.

Carbon dioxide is mainly carried in the blood in the form of bicarbonate ions which will then combine with hemoglobin to form ___.

Carbon dioxide is mainly carried in the blood in the form of ___ which will then combine with hemoglobin to form carboxyhemoglobin .

Carbon dioxide is mainly carried in the blood in the form of bicarbonate ions which will then combine with ___ to form carboxyhemoglobin .