Skin Layers
This is the most superficial layer of the 3 main skin layers.
What is the epidermis?
This is the most superficial layer of the epidermis.
What is the stratum corneum?
The uneven joining of the dermis and epidermis, in order to increase the amount of contact and surface area, creates this feature.
What are epidermal ridges?
A 1st-Degree burn damages this layer of skin.
What is the epidermis?
The production and growth of the nail comes from this point.
What is the nail root?
This is the middle of the 3 primary layers of skin, housing most of the accessory structures.
What is the dermis?
The hypodermis is composed primarily of this tissue/cell type.
What is adipose tissue/fat cells?
This is the pigment that creates varying skin color, and the name of the cells that produce it.
What is melanin produced by melanocytes?
The repair stage of hemostasis constricts blood vessels and forms a clot, creating this.
What is a scab?
This is the small bump in the hair bulb that contains the nerve ending and blood vessels.
What is the hair papilla?
This layer of skin is the deepest.
What is the hypodermis?
This is the layer of the epidermis where the cells die and begin producing keratin.
What is the stratum granulosum.
Sebaceous glands produce this oil, acting as a hydrating boost and antibacterial substance in hair and skin.
What is sebum?
A 2nd-Degree burn is more detrimental, as it damages what layer(s) of skin?
What are the epidermis and the (upper) dermis?
This is the layer of stratum corneum that covers the nail root.
What is the cuticle?
This layer of the epidermis contains stem cells, and is the deepest layer.
What is the stratum basale?
This layer of the epidermis is only present in thick skin.
What is the stratum lucidum?
These types of sweat glands produce a substance to help regulate body temperature that is roughly 90% water and 10% electrolytes.
What are merocrine sweat glands?
A scar is noticeable compared to the rest of the skin because it is made primarily of this fiber, which grows only in one pattern/direction.
What is collagen?
This part of the hair bulb contains epithelial stem cells that keratinize and push upwards, causing hair growth.
What is the hair matrix?
This layer of the dermis contains most of the nerves and blood vessels, adjoining with the epidermis.
What is the papillary layer?
This layer of the dermis is composed of dense irregular connective tissue and joins the dermis with the hypodermis.
What is the reticular layer?
This type of sweat gland produces an oily, odorous secretion that acts as a pheromone.
What is an apocrine gland?
A bruise transitions from red/purple to a greenish yellow due to the breakdown of hemoglobin into these two structures.
What are biliverdin and bilirubin?
This is the muscle that contracts in many mammals to make hair stand straight up.
What is the arrector pili muscle?