1. Microscope The Pieces and Parts

2. Body Tube #1 in picture Allows light from objectives to pass upward to form first image.

3. Eyepiece (ocular lens) # 9 on picture 10 x magnification of image

4. Revolving Nosepiece # 2 in picture Holds the 3 objectives Allows objectives to rotate into position (listen for the CLICK!)

5. Objectives Low Power: 4 x magnification (#3)also called “scanning” Medium:10 X magnification (#4) High:40x or 43x magnification (# 5)

6. Total Magnification Ocular lens x objective lens = total magnification Ex: Ocular x low power = 10 x 4= 40 x magnification Ocular x medium = 10 x 10= 100 x magnification Ocular x high power =10 x 40= 400 x magnification

7. Stage Clips and Stage # 6 clips # 11 stage Clips- holds specimen in place on stage stage- platform to hold the specimen on microscope

8. Diaphragm # 7 Regulates amount of light on the specimen. Ranges from 1 to 5 (1 smallest….to 5 largest)

9. Light Source, Arm, and Base # 8 light source # 10 arm # 14 base Light source: helps image show better (Can be light or mirror) Arm: used to carry microscope Base: used to support when carrying microscope

10. Course Adjustment Knob # 12 Larger knob on microscope Moves stage up and down Used for initial focus of specimen DO NOT USE ON HIGH POWER!!!!!!! (Or you will BREAK the slide!!!)

11. Fine Adjustment Knob # 13 Used to fine tune the image Makes sharper/clearer

12. BE READY FOR A QUIZ!!!! TOMORROW!! ***** You must pass to do the microscope lab…