Inteumentary Study Guide Flashcards
Study to get a 100% (22 cards)
How do we define an organ?
Collection of tissues that structurally form a functional unit specialized to perform a particular function
what is the largest organ in the human body?
skin
what organs make up the integumentary system
skin, hair, nails, and associated glands like sebaceous glands and sweat glands
what are the nerve fibers of the integumentary system associated with
sensory perception/sensory nerve fibers
know the makeup and description of the layers
epidermis(outer layer), the dermis(middle layer), hypodermis(subcutaneous layer)
know the functions of the skin
protection against microorganisms, dehydration, ultraviolet light, and mechanical damage
where do we find the blood vessels that supply the skin
within the dermis layer of the skin
skin cancer cells are most likely to develop from
sun exposure
the main function of melanocyte
produce melanin
injections that are administered into the tissues of the skin are called
intradermal injection
skin cells play an important role in the production of which vitamin
vitamin d
exposure to ultraviolet light darkens the skin by stimulating the production of what
production of melanin
what is cyanosis and what causes it
bluish color in the skin, lips, and nail beds caused by a shortage of oxygen in the blood
know the layers of the epidermis and compare and contrast it with the dermis
The epidermis, the outermost layer of skin, consists of five distinct layers: stratum basale (germinativum), stratum spinosum, stratum granulosum, stratum lucidum (only present in thick skin), and stratum corneum, while the dermis, the layer beneath the epidermis, is composed of two layers: the papillary dermis (superficial) and the reticular dermis (deep), with the key difference being that the epidermis is primarily made up of keratinocytes and functions as a protective barrier, while the dermis contains connective tissue, blood vessels, nerves, hair follicles, and glands, providing structural support and flexibility to the skin.
where are carcinomas most commonly found
they start in the epithelial tissue
what acts as an insulator in the subcutaneous layer
adipose tissue, also known as body fat
what pigment is produced by the melanocytes
melanin
what makes up the shaft of a hair
keratin
what are the parts of a nail
Nail plate
Lunula
Eponychium
Cuticle
Hyponychium
Nail folds
Nail matrix
Matrix
Free edge
Sterile matrix
Nail groove
Onychodermal band
Germinal matrix
Muehrcke nails
Paronychium
Nail anatomy
Mantle
Nail malformation
Nail tip free edge
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where do we find the various glands associated with the integumentary system
sudoriferous/sweat glands, sebaceous/oil glands, ceruminous/earwax gland, mammary/produce milk
what type of muscle tissue make up the arrector pili muscles
smooth muscle
why is it important to maintain body temperature
enzymes in a body’s cells must have the correct temperature to be able to catalyse chemical reactions
