Biology

Ocular lenses

The lenses closest to your eyes.

Arm

Used to support the microscope when carried

Stage

holds the microscope slide in place

Fine focus knob

Used to slightly adjust the position of the stage.

Course Focus Knob

Used to moved the stage roughly into place

Base

The bottom of the microscope

Light Source

projects light upwards through the diaphragm to allow you to see the specimen

Diaphragm (Microscope)

controls the amount of light passing through the specimen

Objective Lenses

The lenses closest to the sample

Organelles

Tiny cell structures that carry out specific functions within the cell.

Cell Wall

Rigid layer that surrounds the cells of plant, protecting it and giving it structure.

Cell Membrane

A layer that lets certain substances go in and out of the cells. Also helps keep the cell together

Nucleus

The cell's control centre, where all the genetic information is stored.

Cytosol

The fluid that fills the inside of a cell

Mitochondria

Converts glucose into useable energy for the cell

Chloroplasts

Captures energy from sunlight and uses it to produce food for the cell.

Vacuoles

Stores fluids, wastes and nutrients.

Trachea

The main airway of the respiratory system

Lungs

Contains the alveoli.

Pharynx

Tube that connects the mouth to the larynx and esophagus.

Bronchi

Tubes that branch from the trachea and lead to the alveoli

Larynx

Holds the vocal chords required for speech

Alveoli

Small air sacs that allow oxygen to diffuse into the bloodstream and carbon dioxide to diffuse out

Diaphragm (Organ)

The muscle that expands and contracts the lungs, sucking air in and out of the respiratory system

Epiglottis

A flap that covers the trachea when swallowing, preventing food from entering the lungs

Respiratory system

The system responsible for intaking oxygen and removing carbon dioxide

Kidneys

Responsible for filtering blood and creating urine

Ureters

Tubes that connect the kidneys to the bladder

Bladder

Stores urine

Urethra

A tube that discharges urine

Excretory system

The system responsible for filtering blood and removing wastes through the creation and discharge of urine.

Intercoastal muscles

Muscles that let the rib cage expand, giving more space for the lungs to expand.

Nasal cavity

The main entry into the respiratory system. Filters and moistens air.