Human Skin Biology

Question 1

Name the 3 layers of skin structure

Answer 1

1. Epidermis
2. Dermis
3. Hypodermis

Question 2

What is the cell which makes up the majority of the Epidermis?

Answer 2

Keratinocytes

Question 3

What is a key function of Keratinocytes?

Answer 3

Producing Keratin

Question 4

Name the 4 layers which comprise epidermis of thin skin

Answer 4

1. Stratum Corneum
2. Stratum Granulosum
3. Stratum Spinosum
4. Stratum Basale

Question 5

What is the name of the 5th layer (of epidermis) found in thick skin?

Answer 5

Stratum Lucidum

Question 6

Where is Stratum Lucidum located in the epidermis?

Answer 6

beneath the stratum corneum and above the startum granulosum

Question 7

Name the 2 regions which comprise the Dermis

Answer 7

1. Papillary Region

2. Reticular Region

Question 8

What type of tissue is the Papillary Region composed of?

Answer 8

Areolar Loose Connective Tissue

Question 9

What type of tissue is the Reticular Region composed of?

Answer 9

Dense Irregular Connective Tissue

Question 10

Describe a superficial wound

Answer 10

Only the epidermis is damaged.

Question 11

Describe a partial thickness wound

Answer 11

Epidermis destroyed, Dermis damaged

Question 12

Describe a full thickness wound

Answer 12

Both Epidermis and Dermis destroyed. The Hypodermis may also be damaged/destroyed

Question 13

Name the cell which produces the melanin pigment?

Answer 13

Melanocytes

Question 14

Where are Melanocytes found in the Epidermis?

Answer 14

Stratum Basale and Stratum Spinosum

Question 15

name the cell found in epidermis which surveys it for foreign organisms?

Answer 15

Langerhan Cells