topic 2 lesson 4 managing materials continued

Respiratory System

Brings air containing oxygen to the body and removes carbon dioxide and water.

Lungs

The main organs of the respiratory system.

Nose

Moistens the air you breathe.

Trachea

Also known as the windpipe; a tube in the respiratory system.

Bronchi

The two passages that bring air into the lungs.

Alveoli

Tiny thin-walled sacs where gases move between air and blood.

Pharynx

Tube-like passageway at the top of the throat.

Epiglottis

Flap at the lower end of the pharynx.

Bronchioles

Small tubes of the respiratory system.

Larynx

Triangle-shaped area that holds the vocal cords.

Cellular Respiration

Process cells use to break down glucose to make energy; requires oxygen and produces carbon dioxide.

cellular respiration

____ is breathing the exchange of gases inside/outside the body

Gas Exchange

____ is the process of gases (oxygen and carbon dioxide) moving between the alveoli and the blood.

oxygen

once air enters the alveoli, ____ passes through the capillary walls into the blood

carbon dioxide and water

at the same time when air enters the alveoli, ____ and ____ pass through from the blood into the alveoli

Diaphragm

Muscle that helps in the breathing process by contracting and releasing.

Inhale

The act of breathing in; rib muscles contract.

Exhale

an opposite reaction of inhaling happens, the diaphragm releases

Excretion

Process of removing waste

Kidneys

Two bean-shaped organs that filter blood and regulate water.

Urea

Chemical made from the breakdown of proteins.

Urine

A mix of urea and water, excreted from the body.

urethra

liquid waste collects in the bladder and leaves through the _____

Urethra

Tube through which urine leaves the body.

Nephron

Small filtering structure in the kidneys that removes waste from blood and produces urine.

Skin

The integumentary system that includes sweat glands which release water.

Sweat Glands

Structures in the skin that release water.