RESPIRATORY

SYSTEM

Function of Respiratory System

To provide to enter the bloodstream where it will be carried to every cell for the process of . This produces for .

oxygen

Aerobic respirationenergy

metabolism

In addition, this system allows to be exhaled from the body.

carbon dioxide

So how do organisms Respire?

diffusion

skin

spiracles/tracheal tubes

stomates

gills

nosemouth

Human Respiratory System

The Nasal Cavity has space which the air, mucus membranes which the air and nose hairs which

the air.

warmsmoisten

filter

nosemouth

Human Respiratory System

pharynxlarynx

How do you speak/choke/have food come out your nose? Eww!!

Uvula, but what’s that hanging off it?

Adam’s apple

nosemouth

Human Respiratory System

pharynxlarynx

trachea

bronchi bronchi

Bronchi and trachea: Rings of cartilage to keep open, mucus and beating hairs to clear passageway

nosemouth

Human Respiratory System

pharynxlarynx

trachea

bronchi bronchi

lung

bronchiole

alveoli

Lungs contain bronchioles and alveoli.

bronchiole1.

2. alveoli

3. capillary

nosemouth

Human Respiratory System

pharynxlarynx

trachea

bronchi bronchi

lung

bronchiole

alveolidiaphragm

So……why do we breathe? And how?

We mostly breathe to rid ourselves of CO2

Inhale: ribs up and out, diaphragm down.

Exhale: ribs down, diaphragm up.

Respiratory Disorders: ASTHMA

Causes release of histamine which…

…causes a runny nose, sneezing, itchy, watery eyes and possibly-

ASTHMA!

antihistamineinhaler

Respiratory disorders: BRONCHITIS

Inflammation caused by: virus, bacteria, asthma, smoking

Smoking causes:

Bad hair!

Bad stink!Bad teeth!

Bad skin!

ADDICTION!!

That was then…

This is now!

Smoking causes: EMPHYSEMA

Alveoli are overstretched and lose their elasticity

Smoking causes

cancer

laryngectomy

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Mount Everest: Mount Everest: 29,032 ft above sea level29,032 ft above sea level

Mauna Kea, HawaiiMauna Kea, Hawaii

13,000 ft above sea level 13,000 ft above sea level (33,000 ft from the sea floor!)(33,000 ft from the sea floor!)

Chimborazo, EcuadorChimborazo, Ecuador

20,500 ft above sea level20,500 ft above sea level

Farthest point from the Farthest point from the Earth’s CenterEarth’s Center

Mt. Everest Base CampMt. Everest Base CampTibet, 18,000 ftTibet, 18,000 ft

Memorials to lost climbersMemorials to lost climbers

Camp 1: 19,100 ftCamp 1: 19,100 ft

Oo Nien and Katie

You must all be High!!!