Layers
The largest organ in the whole body is part of the integumentary system. What is it?
Skin
What are the five strata starting with the one closest to the basement membrane?
stratum...germinativum, spinosum, granulosum, lucidum, and corneum
There are four main organs that are found in the integumentary system. What are they?
Skin, hair, nails and exocrine glands.
What part of the skin can you find the melanocytes
Stratum germinativum
What is produced by cells called melanocytes
Melanin is a pigment that gives skin their color.
This layer is composed mainly of adipose
hypodermis (subcutaneous)
What strata is responsible for creating new cells
stratum germinativum
In order to warm up the body when cold, the hair stands on end. What causes this?
arrector pili
If a tumor is benign, what does that mean? Malignant?
noncancerous and cancerous (spreading)
Exposure to ultraviolet light darkens the skin by stimulating production of
Melanin
Which type of tissue is present and makes up the epidermis?
Stratified Squamous Epithelium
This layer is usually the thickest of all of the strata (hint: keratinized cells)
stratum corneum
What are hair, nails, and epidermal cells composed of?
Keratin
This type of burn kills the epidermal cells and might affect the dermis and cause blisters
2nd degree
Which pigment can cause an orangish color change
carotene
Fingerlike projections of the dermis into the epidermis to increase surface area
dermal papillae
What layer is missing that makes most of our body into thin skin
stratum lucidum
Which type of gland is responsible for oil secretions into the hair follicles
sebaceous glands
The granulations that appear during the healing of a large, open wound are composed mainly of
fibroblasts around blood vessels
What is the function of the Keratin which is produced by the Keratinocytes?
To make skin tough and waterproof.
What layer of the skin contains the capillaries and nerve supplies
dermis
In what strata do the cells stop dividing and start making large amounts of keratin
stratum granulosum
Sudoriferous glands have an important function in the body which is...?
regulation of body temp
Squamous cell carcinomas generally effect what strata of the skin
Stratum corneum (more superficial layers)
Reduction in circulatory supply or loss of oxygen causes the skin to turn a bluish color as part of what condition
cyanosis