Epidermis
It acts as a protective barrier, creates new skin, and provides skin color
What are the functions of the epidermis?
It grows hair, makes oil, produces sweat, and supplies blood
What does the dermis do?
The bottom, fatty layer of skin
What is the hypodermis?
This layer has dead keratinocytes that secrete defensins and are part of our first immune defense
What is the stratum corneum?
This is located in the mid-dermis and almost always develops alongside a hair follicle
What are Sebaceous Glands?
The process of fat in the hypodermis keeping you from getting too cold or hot
What is regulation of body temperature?
It contains diamond shaped cells with keratohyalin granules and lamellar granules that protects our body from invasion by foreign particles
What is the Stratum granulosum?
This sweat gland is more common and distributed through the skin
What is the Merocrine sweat gland?
This is given with a hypodermic needle; it penetrates into these vessels so the drug can be delivered directly into the bloodstream
What is a subcutaneous injection?
It is known as the deepest layer of the epidermis that contains mitotically active stem cells that are constantly producing keratinocytes
What is the Stratum basale?
The production this oily substance is critical for maintaining skin homeostasis, lubrication, and physiological defense against environmental and infectious insults. It helps to seal in moisture and prevent desiccation of the skin
What is Sebum?
This is known as BODY FAT in the hypodermis that protects muscles and bones from injuries when you fall or are in an accident
What is adipose tissue?
Also known as the prickle cell layer; dendritic cells can be found in this layer that boosts immune responses
What is the Stratum spinosum?
This thin layer of the hair follicle is both a chemical and physical niche for cells that regenerate the cycling portion of the hair follicle and generate the hair shaft
What is the dermal papilla?
As you age, your hypodermis decreases in size, and Collagen and elastin production slow down.
Why does our skin sag as we age?