Integumentary System Flashcards
What are the 2 skin major layers?
Epidermis and Dermis
What is also called the subcutaneous layer? located deep to the dermis but not a layer of the skin
Hypodermis
What are the 4 major types of cells?
- Keratinocytes
- Melanocytes
- Intraepidermal Macrophages
- Tactile Epithelial Cells
What covers all body regions except palms, palmar surfaces of digits and soles
Thin (hairy) skin
What covers the palms, palmar surfaces of digits and soles?
Thick (hairless) skin
The epidermis is composed of 4 layers in thin skin and 5 layers in thick skin. They are? (from deep to superficial)
- Stratum Basale
- Stratum Spinosum
- Stratum Granulosum
- Stratum Lucidum
- Stratum Corneum
What is produced by melanocytes in the stratum basale?
Melanin
Which melanin is yellow to red?
Pheomelanin
Which melanin is brown to black?
Eumelanin
What is red pigment in red blood cells?
Hemoglobin
What is yellow orange pigment stored in the stratum corneum and adipose tissue?
Carotene
What are the parts of a hair?
Shaft, Follicle, Root
What are the hair growth stages?
Growth, Regression, Resting q
What type of hair covers the fetus?
Lanugo
What is long, coarse, heavily pigmented hairs?
Terminal