Basic Dev Lab Tools & Microscopy

Question 1

What device is used to perform paraffin sectioning

Answer 1

Microtome

Question 2

Fixative is nearly impossible to remove completely from a tool, and the smallest trace can severely damage living embryological material.

Question 3

Knives as fine as the iridectomy knives used by eye surgeons can be made from chips of razor blades mounted on wooden dowels

________can be sterilized before use in 70% ethanol or in boiling water.

Answer 3

Microknives

Question 4

_______ are extremely valuable for fine manipulations and can be used as microscissors by drawing one needle past another.

———- can be sterilized before use in 70% ethanol or in boiling water.

Answer 4

Microneedles

Question 5

Who invented hairloops

Blond baby’s hair makes the finest quality loops, and for years’ embryologists have been known to hang around barber shops waiting for the first haircut of a blond child.

Answer 5

Hans Spemann

Question 6

a perforated spoon that allows you to pick up embryos and eggs in the several-millimeter to several centimeter range without having them float off the spoon

Answer 6

Embryo spoon

Question 7

uses lenses along with light to magnify items up to 1000x.

Answer 7

Light microscope

Question 8

“Twelve Good Rules”

Answer 8

Never force a knob or control.
Always review these rules until they are reflex.
Always cover the microscope when storing it.
Never unscrew an objective unless instructed to do so.