INTEGUMENTARY SYSTEM
The integumentary system is another organ made of skin, hair, nails, and exocrine glands. Skin forms as the outer covering, forming a barrier to protect the body from disease, UV light, and other bodily harm.
Epidermis layer is the most superficial layer of the skin that covers almost the entire body surface. The epidermis is made of several specialized types of cells: Keratinocytes, Melanocytes, Langerhans, and Merkel cells. Keratinocytes cover 90% of the body and makes the keratinocytes- which is very tough, scaly and water-resistant. Melanocytes form 8% in the epidermis and produces pigment melanin to protect skin from UV radiation. Langerhans cells make up just over 1% of all epidermal cells, detect and fight pathogens attempting to enter the body through the skin. Lastly, Merkel cells make up less than 1% of all epidermal cells but have the function of sensing touch.
The dermis is the deep layer of the skin found under the epidermis. The dermis is mostly made of dense irregular connective tissue, nervous tissue, blood, and blood vessels. Within the dermis there are two distinct regions: the papillary layer and the reticular layer.
The papillary layer is the superficial layer of the dermis bordering the epidermis. Blood flow delivers nutrients and oxygen for the epidermal cells. The dermal papillae nerves feel touch, pain, and temperature. The reticular layer is the thicker and tougher part of the dermis, made of dense irregular connective tissue- tough collagen and stretchy elastin fibers giving strength and elasticity to the skin. The reticular layer also contains blood vessels to support the skin cells and nerve tissue to sense pressure and pain in the skin.
The hypodermis (or subcutaneous tissue) serves as the flexible connection between the skin and the underlying muscles and bones as well as a fat storage area. Areolar connective tissue contains elastin and collagen fibers. Fatty adipose tissue stores energy and also helps insulating by trapping body heat.
To add on, hair and nails also are part of the integumentary system along with the different types of glands; Sudoriferous, Sebaceous, Ceruminous. Hair helps to protect the body from UV radiation by preventing sunlight damaging the skin and insulates the body by trapping warm air around the skin. Nails prevent infection of the underlying tissues. Sudoriferous glands are exocrine glands found in the dermis of the skin (AKA sweat glands). Sebaceous glands have sebum which lubricates and protects the cuticles of hairs. Ceruminous glands produce a waxy secretion known as cerumen to protect the ear canals and lubricate the eardrum.
In addition: keratinization, temperature homeostasis, Vitamin D synthesis, protection, and skin color are all part of the physiology of the integumentary system.
Inner Body: Integumentary System
http://www.innerbody.com/anatomy/integumentary
The integumentary system is another organ made of skin, hair, nails, and exocrine glands. Skin forms as the outer covering, forming a barrier to protect the body from disease, UV light, and other bodily harm.
Epidermis layer is the most superficial layer of the skin that covers almost the entire body surface. The epidermis is made of several specialized types of cells: Keratinocytes, Melanocytes, Langerhans, and Merkel cells. Keratinocytes cover 90% of the body and makes the keratinocytes- which is very tough, scaly and water-resistant. Melanocytes form 8% in the epidermis and produces pigment melanin to protect skin from UV radiation. Langerhans cells make up just over 1% of all epidermal cells, detect and fight pathogens attempting to enter the body through the skin. Lastly, Merkel cells make up less than 1% of all epidermal cells but have the function of sensing touch.
The dermis is the deep layer of the skin found under the epidermis. The dermis is mostly made of dense irregular connective tissue, nervous tissue, blood, and blood vessels. Within the dermis there are two distinct regions: the papillary layer and the reticular layer.
The papillary layer is the superficial layer of the dermis bordering the epidermis. Blood flow delivers nutrients and oxygen for the epidermal cells. The dermal papillae nerves feel touch, pain, and temperature. The reticular layer is the thicker and tougher part of the dermis, made of dense irregular connective tissue- tough collagen and stretchy elastin fibers giving strength and elasticity to the skin. The reticular layer also contains blood vessels to support the skin cells and nerve tissue to sense pressure and pain in the skin.
The hypodermis (or subcutaneous tissue) serves as the flexible connection between the skin and the underlying muscles and bones as well as a fat storage area. Areolar connective tissue contains elastin and collagen fibers. Fatty adipose tissue stores energy and also helps insulating by trapping body heat.
To add on, hair and nails also are part of the integumentary system along with the different types of glands; Sudoriferous, Sebaceous, Ceruminous. Hair helps to protect the body from UV radiation by preventing sunlight damaging the skin and insulates the body by trapping warm air around the skin. Nails prevent infection of the underlying tissues. Sudoriferous glands are exocrine glands found in the dermis of the skin (AKA sweat glands). Sebaceous glands have sebum which lubricates and protects the cuticles of hairs. Ceruminous glands produce a waxy secretion known as cerumen to protect the ear canals and lubricate the eardrum.
In addition: keratinization, temperature homeostasis, Vitamin D synthesis, protection, and skin color are all part of the physiology of the integumentary system.
Inner Body: Integumentary System
http://www.innerbody.com/anatomy/integumentary
HERE'S SOMETHING TO LOOK AT
PubMed: The healing effect of stem cells loaded in nanofibrous scaffolds on full thickness skin defects.
In both humans and animals, stem cell had a significant effect on wound closure and repair. These stem cells also proved efficient in the healing of skin defects.
http://www.ncbi.nlm.nih.gov/pubmed/23980496
Integumentary System
This website provides great information about the skin, fun facts, and certain disorders.
http://healthfairintegumentarysystem.weebly.com/index.html
GLOGSTER
Glogster is compared to a digital poster, great for projects and design methods.
This glogster sums up the integumentary system in a well organized and detailed manner.
http://www.glogster.com/stdknee/the-integumentary-system-glog-by-stdknee/g-6lb2m9vrr39j01sdunemva0
This glogster was made by yours truly--ME! My poster is about the damaging effects of sun and tanning, many precautions need to be taken to avoid skin cancer.
http://hira95.edu.glogster.com/sun-safety-facts/
PubMed: The healing effect of stem cells loaded in nanofibrous scaffolds on full thickness skin defects.
In both humans and animals, stem cell had a significant effect on wound closure and repair. These stem cells also proved efficient in the healing of skin defects.
http://www.ncbi.nlm.nih.gov/pubmed/23980496
Integumentary System
This website provides great information about the skin, fun facts, and certain disorders.
http://healthfairintegumentarysystem.weebly.com/index.html
GLOGSTER
Glogster is compared to a digital poster, great for projects and design methods.
This glogster sums up the integumentary system in a well organized and detailed manner.
http://www.glogster.com/stdknee/the-integumentary-system-glog-by-stdknee/g-6lb2m9vrr39j01sdunemva0
This glogster was made by yours truly--ME! My poster is about the damaging effects of sun and tanning, many precautions need to be taken to avoid skin cancer.
http://hira95.edu.glogster.com/sun-safety-facts/
SOURCES
- "Integumentary System." InnerBody. N.p., n.d. Web. 30 Nov. 2013.
- HS, KESHEL, and BIAZAR E. "Result Filters." National Center for Biotechnology Information. U.S. National Library of Medicine, n.d. Web. 03 Dec. 2013.
- "Integumentary System - Home." Integumentary System. N.p., n.d. Web. 03 Dec. 2013.
- BRINK, SYDNEY. "Glogster Home Page." Glogster. N.p., n.d. Web. 03 Dec. 2013.
- NADEEM, HIRA. "Sun Safety Facts." : Text, Images, Music, Video. Glogster, 28 Oct. 2013. Web. 03 Dec. 2013.
- "P32's Revision Blog." P32's Revision Blog. N.p., n.d. Web. 03 Dec. 2013.