Chapter 6 Flashcards
Functions of the Skin:
- Resistance to trauma and infection
- Barrier to water
- Vitamin D synthesis
- Sensation
- Thermoregulation
What is the most abundant protein of the Epidermis?
Keratin
What are the 3 layers of the skin?
Epidermis
Dermis
Hypodermis
Cyanosis
Blue discoloration of the skin
Erythema
Red discoloration of the skin
Pallor
Pale/ ashen discoloration
Albinism
White discoloration
Jaundice
Yellow discoloration
5 layers of the Epidermis
- Corneal
- Lucidum
- Granular
- Spinosum
- Basal
What are the 5 cells of the Epidermis?
- Stem cells
- Keratinocytes
- Melanocytes
- Tactile cells
- Dendritic cells
Stem cells
Source of new cells
Keratinocytes
Protein, abundant
Melanocytes
Pigment cells ( melanin)
Tactile cells
Sensory nerve cells
Dendritic cells
Immune cells
What are the five discoloration changes?
- Jaundice- yellow
- Cyanosis- blue
- Erythema- red
- Pallor- ashen
- Albinism- white ( translucent)
What are the 5 dermis structures?
- Blood vessel
- Hair follicle
- Sebaceous gland
- Piloerector muscle
- Sweat gland
PEM
Piloerector muscle
Keratin
Primary protein in the epidermis
Melanin
Pigment cell
Gives color to skin, eyes, hair etc
UV protection
Epidermis
Dermis
Hypodermis
Subcutaneous tissue
Where is the hair follicle?
Anchored in the dermis
What is the sebaceous gland?
A large bag of clear cells
What does the Piloerector muscle do?
It’s the hair stand up muscle
