7.4 Observing and drowsing respiratory system :
Miscroscope
Prepared section of TS trachea, bronchi, bronchiole, alveoli
Pencil HB or 2H grade
Eraser
Pencil sharpener
Ruler
Eyepiece graticule
Stage micrometer
Dissection tray etc...
Bio viewer (white) and small petri-dishes (cut trachea)