The integumentary System Flashcards
What are the three layers of skin In order
1/epidermis
2/Dermis
3/subcutaneous layer
Describe the epidermis layer
1/the outer superficial layer of the skin.
2/it consists of epithelial cells and is about 10 to 30 cells thick.
3/it contains keratin which is a protein which waterproofs and protects the cells and tissues that lie underneath the Abdulmaqsud.
4/it has switch pores which originates in the dermis layer but the sweat pores release the sweats next line next line
5/hair shafts where the hair pokes through the skin
6/it contains melanin which is a big pigments absorbs lights and protects the deeper cells from the facts of ultraviolet rays that come from the sunlight as well as it affects the skin tone color
Describe the dermis layer
1/lays beneath the epidermis directly, the second layer of skin.
2/contains glands of oil and sweats
3/it contains the nerve cells, it is in the second layer so we wouldn’t be too sensitive
4/has muscle tissues, for flexibility.
5/hair follicles, there originates in the subcutaneous layer but they pass through the dermis.
6/sebaceous glands, they lubricate the skin and hair
Hair
they are part of the integumentary system, contain keratin and develop from epithelial cells.
Her cells grow out of cavities in the dermis called her follicles,
Hair follicles are usually associated with glands such as dissipation is glands and there’s too much oil production the follicles could be blocked in which results in under grown hair
Nails
Nails and toenails grow from specialized epithelial cells at the base of each now. Nails grow about half to 1.2 mm per day
What are the functions of the integumentary system
1/temperature regulation
In order to regulate body temperature, the person sweats. Next line next line
Goosebumps are caused by the contraction of muscle cells in the dermis.
2/vitamin production :
Scan response ultraviolet rays by producing vitamin D
3/protection and senses:
Intact skin prevents the entry of microorganisms and other forms of sins.
Skin helps maintain body temperature by preventing excessive water loss and protects the body against ultraviolet trees
What could cause damage to the skin
Cuts and scrapes
Effects of the sun and burns
What are the 3° of cards
1/scrape, epidermis, skin cells
 2/ blood and tissue. dermis
3/organs, Subcutaneous layer, stitch and tissue transplant
What are the effects of sunburns on the skin
As people age the elasticities of the skin decreases and they get wrinkles exposure to ultraviolet rays from the sun accelerates this process and can result in burning of the skin another damages
What are the classifications of burns
first- degree/
Cells in the upper dermis are injured and may die
– redness and swelling
– mild pain
Second-degree/
Cells deeper in the upper dermis die, cells in the dermis are injured and may die
- blisters
– pain
Third-degree /
Cells in the epidermis and dermis die, nerve cells and muscle cells are injured
Dash skin function lost
– healthy skin needs needs to be transplanted
– no pain because of nerve cell damage
Explain skin cancer
Ultraviolet radiation damage the DNA and skin cells, causing those cells to grow and divide uncontrollably, when this happens skin cancer results
What are the two main categories of skin cancer
Non melanoma and melanoma begins in the melanocytes which produce the pigment melanin. It is the deadliest form of skin cancer, can spread to internal organs and the lymphatic system.
Who are at-risk of getting skin cancer
Everyone but specifically individuals with light skin or light colored eyes lighter color
