Respiration Tutorial

Front 1

Conduction Division

Back 1

The conducting division of the respiratory center is responsible for transporting air between the outside of the body and deep inside the lungs. The individual parts of the conducting division are pictured and described below.

Front 2

Nose

Back 2

The functions of the nose and nasal cavity are to warm, clean, and humidify the air.

Front 3

Pharynx

Back 3

region surrounded by muscular tissue connecting the back of the nasal cavity to the back of the mouth, and upper portion of the throat. The pharynx also warms, humidifies, and cleans the air you inhale.

Front 4

Larynx

Back 4

keep food and drink out of the lungs.

Front 5

Trachea

Back 5

hollow tube traveling from the bottom of the larynx and toward the lungs.

Front 6

Bronchial tree

Back 6

The trachea divides into a pair of tubes called the right primary bronchus and a left primary bronchus, which transport air to and from the right and left lungs

Front 7

Respiratory Division

Back 7

allow gasses such as oxygen and carbon dioxide to diffuse between the air you inhaled and the blood.

Front 8

Gas Exchange

Back 8

The diffusion of gasses between the air you inhaled and your blood

Front 9

Alveoli

Back 9

each of your lungs is actually composed of millions of tiny hollow sacs

Front 10

Respiratory membrane

Back 10

where the cells of an alveolus meet the cells of the capillary wall.

Front 11

Surfactant

Back 11

Chemical that Sdecreases the attraction between water molecules, and prevents the walls of the alveolus from collapsing.

Front 12

Infant Respiratory Distress Syndrome

Back 12

occurs when an infant is born before cells in the alveoli start producing surfactant.

Front 13

Pressure

Back 13

amount of force something pushes against something else.

Front 14

Atmospheric Pressure

Back 14

The pressure of the outside air

Front 15

Intrapulmonary Pressure

Back 15

The pressure of the air inside the lungs

Front 16

Volume

Back 16

amount of space inside of any container (a syringe, a sack, or a lung).

Front 17

Boyle's Law

Back 17

pressure of a given quantity of gas is inversely proportional to its volume.

Front 18

Diaphragm Muscle

Back 18

bell shaped muscle forming the floor of your chest (thoracic cavity).

Front 19

Visceral Pleura

Back 19

Your lungs are lined by a connective tissue

Front 20

Parietal Pleura

Back 20

The inside walls of your chest are lined by a connective tissue

Front 21

Pleural Cavity

Back 21

The visceral and parietal pleura are continuous with one another and surround each lung creating a separate compartment for each lung

Front 22

Pleural Liquid

Back 22

The pleural cavity is actually very narrow, and contains a thin liquid

Front 23

intrapleural pressure

Back 23

This creates more space inside your chest and the pressure inside the pleural cavity drops.

Front 24

Respiratory Control Center

Back 24

circuit of neurons in the base of the brain (the medulla oblongata and pons) that control the rate and depth of your breathing.

Front 25

Carbon Dioxide

Back 25

a waste product produced by all of your body cells as they metabolize glucose and other sugars for energy.

Front 26

Carbonic acid

Back 26

One molecule of carbon dioxide combines with one molecule of water to become one molecule

Front 27

Hypercapnia

Back 27

caused by the carbon dioxide concentration in your blood being too high.

Front 28

Respiratory Acidosis

Back 28

when the blood is too acidic

Front 29

Hypocapnia

Back 29

caused by the carbon dioxide concentration in your blood being too low

Front 30

Respiratory Alkalosis

Back 30

The decrease in blood hydrogen concentration will cause the blood to not be acidic enough.

Front 31

Cerebral Spinal Fluid

Back 31

fluid bathing the brain

Front 32

Partial Pressure

Back 32

just how much of the total air pressure is due to any one gas.

Front 33

cilia

Back 33

removes dust, foreign bodies, and bacteria