Integumentary Vocab
T or F
The dermis is the only living layer
True
the outermost layer of the epidermis
stratum corneum
Hair follicles begin to grow in the ______layer of the skin
Dermis
___________is the fatty tissue of skin
Hypodermis or subcutaneous
Nails grow about______ per week
1 mm
sweat is pungent when mixed with
Bacteria
The region under the skin is the_____________
subcutaneous layer
The first structure where a needle will pass
Epidermis
The function of the skin is
Vitamin D production
protection
regulates body temperature
sensory function
Skin color is directly related to______
Melanin
The 2 levels of skin
dermis, epidermis
Melanin is produced by______
Melanocytes
Primary function of melanin
Absorb UV rays
__________is a protein and gives skin a rough leathery texture and makes us waterproof
Keratin
The structure that contracts to cause "goose bumps" is the
arrector pili muscle
The epidermis is made largely of ________that act as a barrier
keratinocytes
this layer contains nerve endings and muscles
dermis
What covers the skin?
Hair
a tiny muscle fibers that attaches to the base of a hair follicle at one end and to dermal tissue on the other end and stands up in certain conditions
Arrector pili
Hair, nails, and the outer layer of the skin are made mostly of a tough waterproof protein called
Keratin
Name the 6 items in the integumentary system
Dermis, epidermis, hypodermis, glands, hair, nails
Two types of glands found in the skin are the
sudoriferous; sebaceous
Squamous, basal and melanoma are types of_______
Skin cancer
made up of primarily water and a small amount of sodium chloride
Sweat glands/sudoriferous glands
the best way to stop the spread of disease is
handwashing
these are ridges in the stratum germinativum that help with grip
what is papillae
this is the reproductive layer of the skin
stratum germinativum
this is made up of loose connective tissue, sits under the dermis, and contains half the body's stored fat
what is the subcuatneous layer
the best way to provide protection against pathogens and water loss is
healthy intact skin
How many skin cells does the average human have?
The Average Human has over 300 million cells of skin, A single inch of skin has 19 million cells.
What is the study of skin?
Dermatology
this secretes sebum to protect and lubricate the skin
What is the Sebaceous Gland?
matrix
Name some Diseases of the Integumentary System
Skin Cancer, Sunburn, Acne, Psoriasis, Eczema, Blisters and Atrophy Scarring are all diseases of the Integumentary System
as we age our skin
has decrease circulation
decrease elasticity
decrease collagen
decrease sebum