Practical #1

Question 1

List the 3 Layers of the skin

Answer 1

Epidermis, Dermis, Hypodermis,

Question 2

List attributes of 3 layers of skin

Answer 2

Epidermis (contains melanocytes, k

Question 3

What layer of skin are Melanocytes found?

Answer 3

Epidermis

Question 4

Where is melanin located?

Answer 4

Basal layer of skin (epidermis)

Question 5

What is the observed difference between normal skin that is darkly pigmented vs skin that is not? Be able to distinguish these under the microscope

Answer 5

Melanocytes

Question 6

Which cels are responsible for pigmentation

Answer 6

Melanocytes

Question 7

What is the observation difference between normal ski`n and melanoma? Be able to distinguish these under the microscope

Answer 7

Melanocytes will be in ocrrect layer in ordered fashion in melanoma they will pushing into dermis layer

Question 8

Total magnification formula

Answer 8

Ocular Lenses 10 x Objective Lense (4,10,40,100)

Question 9

Hypertonic, Hypotonic, Isotonic

Answer 9

Hypertonic- when more solute outside cell causes solvent to attract to it which causes shrinkage of cell

Hypotonic- when less solute outside cell causes solvent to attract to inside cell causing expansion