Science Quiz (Grade 9 - 1st Quarter)

Respiration

Respiration

the exchange of gases between the cells and their environment

Cell

is the basic unit of life

Tissue

formed by a group of cells

Organ

formed by a group of tissues

Organ System

formed by a group of organs

Respiratory system

the organ system in which the nose, throat, trachea, bronchi, and lungs can be found in

Nose

have nostrils which serve as passageways of air into the body

Nasal Cavity

extends from the nostrils to the throat, as well as cleans and humidifies the air

Coarse Hairs

projecting from the inner walls of the nostril filters some dust particles out of the body

Mucous Membrane

secretes mucus, which is a moist, thick, and shaky substance

Cilia

microscopic hairs on the surface of the mucous membrane that move back and forth to push mucus, and any substance out of the nose

Pharynx

is the passageway of air that connects the nasal cavity to the larynx and trachea

Trachea

is also called the windpipe, a tube that’s about 10cm in length and 2.5cm in diameter

Larynx

is also called the voice box

Bronchi, Bronchioles, Alveoli

are 3 organs found inside of the lungs

Bronchi

are 2 large hollow bronches

Bronchioles

carry air to small sacs in your lungs called alveoli

Alveoli

the Bronchioles carries air to this part of the lungs

Lungs

makes oxygen available to your body and removes other gases

Diaphragm

is a dome-shaped muscle that separates the chest from the abdomen

Low air pressure

describes the air pressure in the lungs whenever inhaling

High air pressure

describes the air pressure in the lungs whenever exhaling

Oxygen

describes the air from the environment which you take into your lungs

Carbon Dioxide

describes the air from your lungs that you release back into the environment

Red blood cells

transport the body’s inhaled oxygen into various tissues and organs