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Integumentary System

Chapter 5 Anatomy & Physiology

QuestionAnswer
The skin and it appendages (Hair, nails, Skin glands) are collectively know as the Integumentary System
the outer most layer of the skin that consists of stratified squamous epithelial tissue, is called Epidermis
the inner deep layer of the skin that is composed of connective tissue, is called Dermis
Finger-like projects that extend upward from the dermis is called Papillae
Beneath the skin is a layer of subcutaneous tissue called the Hypodermis
this layer is also know as the stratum germinativum Stratum Basale
in the layers of the epidermis, the innermost layer is called Stratum Basale
in the layers of the epidermis, the outermost layer is called Stratum Corneum
new arriving flattened cells are called Keratinocytes
these replace the dead cells that flake away Keratinocytes
A tough, fibrous protein that replaces the cytoplasm and nucleus in each cell Keratin
scatter throughout the basal layer of the epidermis are cells called Melanocytes
melanocytes produce a substance that accumulates in the cells of the epidermis called Melanin
A reddish pigment is called Pheomelanin
Brown-Black pigment is called Eumelanin
A deficiency of oxygen in circulating blood, that result in you skin having a blue tint to it is called Cyanosis
Yellow discoloration to the skin and whites of the eyes is called Jaundice
a golden brown skin color Bronzing
extremely pale skin, white hair, and pink eyes Albinism
Abnormal redness of the skin Erythema
Pale skin Pallor
Bluish, black, or yellowish mark on the skin Bruise
part of the hair that extends above the skin is called the Shaft
each hair lies within a sheath of epidermis called a Hair Follicle
the lowest part of the hair where growth occurs Hair bulb/root
at the base of the hair is a cluster of connective tissue and blood vessels called the Papilla
excessive hair lose is called Alopecia
a type of hair lose that is mainly in men who have High levels of testosterone Male Pattern Baldness
the fold of skin that surround the nail body is called the cuticle
the visible part of the nail is called the Nail Body
the crescent shaped white area at the base of the nail is called the Lunula
the layer of epithelium under the nail is called Nail bed
the proximal end of the nail that's hidden underneath overlaying tissue is called the Nail Root
this gland is widespread throughout the body, but are especially abundant on the palms, soles, forehead, and upper torso. Eccrine Glands
this gland produces Sweat! Eccrine Glands
these glands open into the hair follicle and secretes an oily substance called sebum Sebaceous Glands
this helps keep hair and skin from drying out and becoming brittle Sebum
this gland is mainly located in the axillary and anogenital regions Apocrine Glands
these are scent glands that respond to stress and sexual stimulation Apocrine Glands
these glands are found in the ear canal Ceruminous Glands
the wax in our ears that we refer to as "ear Wax" is called Cerumen
Created by: Leci81