Integumentary and Skeletal Flashcards
(58 cards)
What are the 5 functions of the integumentary system?
i. Protection
ii. Body temp regulation
iii. Excretion
iv. Production of Vitamin D
v. Sensory reception
what are the 4 cells of the epidermis
(hint: 2 cytes, 2 cells)
Keratinocytes
Melanocytes
Merkel Cells
Dendritic cells
what cell is the most abundant epidermal cell and filled with keratin?
Keratinocytes
what epidermal cell produces melanin?
Melanocytes
what epidermal cells act as touch receptors?
Merkel Cells
these epidermal cells are star-shaped and act as phagocytes (they engulf and ingest foreign particles)
Dendritic cells
what are the 5 layers of the Epidermis?
(BS GLC)
Basal Layer
Stratum Spinosum
Stratum Granulosum
Stratum Lucidum
Stratum Corneum
The basal layer consists of one layer of (—–) cells
Cuboidal
The basal layer is virtually the only layer that engages in cell (——)
division
the basal layer (——-) the layers above it
produces
the cells of the Stratum Spinosum are (——) at the edges
Spiny
the Stratum Granulosum has granules filled with (——) precursor and (——–) for water proofing
Keratin, Glycolipid
The Stratum Corneum consists mostly of dead (——–)
Keratinocytes
The Stratum Lucidum is found in areas of very (—–) skin
thick
What are the 2 layers of the Dermis?
Reticular & Papillary
This layer of the dermis is the deepest, consists of Dense Irregular Tissue and contains glands and blood vessels
Reticular
This layer of the Dermis consists of Areolar Tissue and forms raised areas called Papillae
Papillary
The Reticular layer is (–)% of the Dermis and the Papillary layer is (–)% of the Dermis?
Reticular = 80%
Papillary = 20%
The Hypodermis consists of (—-) and (——) tissue
adipose and areolar tissue
What are the 5 glands of the dermis
Sebaceous
Eccrine
Apocrine
Ceruminous
Mammary
The Sebaceous Gland is associated with hair (——-) and secretes a (——-) material that coats hair shafts
hair follicles
fatty material
The Eccrine Gland are called ‘True (—-) Glands’ and secrete (—-) sweat
True Sweat Glands
secrete true sweat
The Apocrine Gland is found in the ancillary, anal and (—–) areas and secretes a fatty sweat that may act as a (——-)
Found in the ancillary, anal and genital areas
secretes fatty sweat = pheromone
the mammary gland secretes (—–) to feed infants
milk