Integumentary system
is the most largest organ in the body
Skin
The relevant Greek and Latin roots
include dermato and cutis, both of which mean
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Integumentary system
is the most largest organ in the body
Skin
The relevant Greek and Latin roots
include dermato and cutis, both of which mean
Hair, nail, and glands
skin is composed of
Epidermis
the most outer layer of the skin
Keratinocytes
a cell present in epidermis that produce keratin
Melanocytes
a cell present in Epidermis that produce melanin
Langerhans cells
a cell present in epidermis which serves as garbage patrol
Merkel cells
a cell present in epidermis which serves as photoreceptors
Stratum corneum
outer most layer, composed of 20 30 layers keratinized dead and flattened cell
Stratum lucidum
composed of lucid and thin layer of cell found in palms of the hand and soles of the feet
Stratum granulosum
It is found just below the stratum
lucidum, composed of granular cells that contain keratin and deformed nuclei.
Stratum sphinosum
It has several layers thick, with cells having dark and spiny projections.
Sweat glands
glands that secrete liquid waste
Eccrine glands
is
responsible for secreting sweat. coiled ducts from the bottom of the skin that connects to the surface
Apocrine glands
appear once humans reached adolescence and are abundant in armpits
Cerumious glands
These are modified apocrine glands in the external ear canal lining; it secretes cerumen or
earwax, a sticky substance that functions to repel foreign material.
Sebaceous glands
These are also known as Oil Glands and can be
found all over the body except in the palms and soles
of the feet.
Stratum basale
It is the deepest layer of the epidermis; consist of a layer of actively dividing cells and the keratinocytes, melanocytes, and merkel cells which are present in this layer.
Fibroblast
are the main cells in the dermis, usually found in the dermal papillae and
decrease its number in the deeper layer of the dermis known as reticular dermis.
Dermis
It is also known as Corium.
Dermis
It is a thicker, fibrous structure. A layer of tissue supporting the skin, and is made up of 80%water, elastic, and collagen fibers. It also contains blood vessels, glands, nerves and hair follicles.
Hair
It has a medulla that contains keratin and air, cortex (contains pigment that
gives hair color) and cuticle (outermost layer mand has cells that overlap like scales), and composed of cornified threads of cells.
Hair follicle
It is a tiny cup shaped pit buried in the fat of the scalp and it is the point from which the hair grows.
Hair shaft
It is the part of the hair that is seen above the skin and is made up of dead cells.
Nails
These are productive coverings on the end of the fingers and toes.
Burn
one of the most serious and frequent problems that affect the skin. It is an injury
caused by fire or by contact of the skin with a hot surface.
Psoariasis
It is a chronic skin disease in which cells in the epidermis divides seven times more frequently than normal.
Skin cancer
It is the result of excessive cell division by cells that have lost control of the process.
Warts
These are small skin tumours that have a normal skin color.
Acne
It occurs most frequently during adolescence. This condition results from more than fivefold increase in sebum secretion between ages of 10 to 19.
Scabies
It is a contagious skin condition caused by the itch mite
Dandruff
It is the excessive shedding of the dead epidermal cells from the scalp as a result of excessive cell production.
Skin aging
it affects appearance, temperature regulation, and vitamin D activation. As the time goes by, the epidermis thins as it becomes fewer yet epidermal cells grow larger and irregular in shape.