Respiratory System Notes.

Front 1

The group of organs that work together to take in oxygen and release carbon dioxide make up the

Back 1

Respiratory System.

Front 2

The ____ is the main passageway into the respiratory system.

Back 2

Nose.

Front 3

The noes ___, ___, and ____ the air we take in.

Back 3

Filters, warms, and moistens.

Front 4

Tiny hairs called ____ line the inside of the nose to filter dust and particles in the air we breathe.

Back 4

Cilia.

Front 5

The ___ is the throat.

Back 5

Pharynx.

Front 6

The pharynx divides into 2 tubes: The ___ is where food and drinks go to the stomach. The ___ is where the vocal chords are located.

Back 6

Esophagus, Larynx.

Front 7

The ___ covers the entrance to the larynx so food and drinks do not go into the wind pipe.

Back 7

Epiglottis.

Front 8

The vocal chords are a pair of ___ that stretch across the larynx.

Back 8

Elastic bands.

Front 9

Muscles connect to the larynx and control how much the bands are stretched.

Back 9

(no answer needed)

Front 10

Air flows ___ the vocal chords and they vibrate, which produces a sound.

Back 10

Between.

Front 11

The ___ of the sound depends on how stretched the bands are.

Back 11

Pitch.

Front 12

The larynx guards the entrance to the ___, or the wind pipe.

Back 12

Trachea.

Front 13

The trachea splits into two branches called ___ (Bronchus is singular)

Back 13

Bronchi.

Front 14

One bronchus connects to each ___.

Back 14

Lung.

Front 15

Each bronchus splits into branches called ___.

Back 15

Bronchioles.

Front 16

Bronchioles split to form small air pouches called ____.

Back 16

Alveoli.

Front 17

Alveoli are surrounded by small blood vessels, called ___, where blood picks up oxygen and drops off carbon dioxide.

Back 17

Capillaries.

Front 18

Breathing is ___ and ___-taking in air and letting air out.

Back 18

Inhaling, exhaling.

Front 19

Your body getting and using oxygen and releasing carbon dioxide and water is ___.

Back 19

Respiration.

Front 20

2 Parts of respiration: ___-taking air in and letting it out. ___-using oxygen to release energy from food.

Back 20

Breathing, Cellular Respiration.

Front 21

Air is forced into and out of the lungs, but your lungs do not have ___ of their own.

Back 21

Muscles.

Front 22

The ___ is a dome-shaped muscle below the lungs that allows breathing.

Back 22

Diaphragm.

Front 23

When the diaphragm ___, it moves ___. This lowers the pressure in the lungs and air is forced ___ the lungs- you inhale.

Back 23

contracts, down, into.

Front 24

___ is just the opposite. Diaphragm relaxes and moves up, so the pressure in the lungs increases and air is forced out.

Back 24

Exhaling.

Front 25

Muscles are rib muscles. ___ Also help with breathing by contracting and moving the ___ ribs upward and outward to ___ the size of the chest cavity, which ___ the pressure, forcing air into the lungs. (Inhaling).

Back 25

Rib Muscles, Ribs, Increase, Lowers.

Front 26

When these muscles ___, the ribs move back down in, ___ the size of the chest cavity, which ___ the pressure in the lungs, and air is forced out. (Exhaling).

Back 26

relax, decreasing, increases.

Front 27

Oxygen is taken in to the lungs and reaches the body cells through the ___.

Back 27

Blood.

Front 28

___ reacts with ___ to produce ___ in the mitochondria of our cells.

Back 28

Oxygen, Glucose, ATP (Energy).

Front 29

During this process, ___ and ___ are produced. The carbon dioxide travels back to the lungs to be released.

Back 29

Carbon Dioxide, and Water.

Front 30

Asthma- ___ narrow making it hard to breathe. Caused by ___ (dust pollen, etc.)

Back 30

Bronchioles, Irritation.

Front 31

Emphysema- ___ are damaged. ___ lung capacity. One cause is ___.

Back 31

Alveoli, Decreased, Smoking.