Flashcards in Integument Deck (58)
What are the 5 layers on skin?
Where does cell division of skin cells happen?
What are the 2 layers of the dermis?
Characteristics of the papillary layer of the dermis
Dermal ridges interdigitate with rete pegs of the epidermis
Which layer is the thickest layer of the dermis?
What is the most common cell of the epidermis?
What 2 cancers generally arise from keratinocytes?
Basal cell carcinoma
Squamous cell carcinoma
What are Langerhans cells?
Antigen-presenting cell found in Stratum spinosum
Where do melanocyte originate from?
What cells accept melanin from melanocytes?
What is a Merkel cell?
Modified keratinocyte in contact with nerve ending
Is the hair follicle continuous with the epidermis of the skin?
What are the sections of the hair?
Medulla (thick hair)
What is the difference between the root and the shaft of hair?
Root is embedded in follicle
Shaft protrudes from surface
What does the bulb of the hair surround in the dermis?
Where is the cuticle located?
Between hair & inner root sheath
Where is the 'glassy' basement membrane of the hair follicle located?
Between outer root sheath & connective tissue
Where are dividing cells located?
Where are the cells that form the medulla located?
Tip of dermal papilla
Where are the cells that form the side of the hair located?
Where do the cells for the cuticle and inner root sheath form?
Base of papilla
What are the 3 hair types?
Where are the nerve endings located in tactile hairs?
What is the main difference between tactile and normal hair?
Tactile hair has venous sinus
The venus sinus in tactile hair divides which layer of the follicle in to 2 layers?
Connective tissue sheath
What 2 types of tissue is the hoof made of?
What is the purpose of intertubular horn?
Holds tubular horn together
What layer produces cells for hoof growth?
Similar to the epidermis, the hoof receives blood supply from the underlying connective tissue (dermis). What is this called in the horse?