Epidermis 1
This outermost layer of the skin is composed of keratinized stratified squamous epithelium.
What is the epidermis?
This epidermal layer is only found in thick skin such as the palms and soles.
What is the stratum lucidum?
This superficial dermal layer contains dermal papillae that increase surface area for diffusion.
What is the papillary layer?
What is the parietal layer?
These structures are considered epidermal derivatives.
What are hair, nails, and exocrine glands
These cells are the most abundant cell type in the epidermis and produce keratin.
What are keratinocytes?
Keratinization begins in this epidermal layer, where cells flatten, and organelles degrade.
This deeper dermal layer houses blood vessels, glands, nerves, and hair follicles.
This thin, fluid-filled space reduces friction between moving organs.
This type of hair is "peach fuzz” hair, which is found all over the body and may or may not be pigmented.
What are vellus hairs?
This is the most superficial epidermal layer composed of dead, anucleate keratinocytes.
What is the stratum corneum?
This epidermal layer contains immune cells that help initiate an immune response.
Damage to this skin layer can result in pain and bleeding, but not regeneration of epidermal cells
What is the dermis?
This serous membrane specifically surrounds the lungs.
What is the pleura?
This structure contains actively dividing cells and is responsible for the growth of certain integumentary structures.
What is the hair and nail matrix?
This epidermal layer is the site of active cell division and continuous mitosis.
What is the stratum basale?
These epidermal layers must be listed in correct superficial-to-deep order to receive full credit.
What are the stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum basale?
This connective tissue type gives the dermis strength in multiple directions.
What is dense irregular connective tissue?
Inflammation of this serous membrane would directly affect abdominal organs such as the intestines.
What is the peritoneum?
This small smooth muscle is responsible for “goosebumps.”
What is the arrector pili muscle?
Damage to this epidermal cell type results in the loss of pigment protection against UV radiation.
What are melanocytes?
This cancer type starts in the stratum spinosum. It may metastasize. It is not the most dangerous or the least dangerous.
The four structures that are housed in the bottom layer of the dermis.
What are blood vessels, glands, hair follicles, and nerves?
The three parts of the pericardium. For full credit must be listed from medial to lateral.
What are the visceral pericardium, the pericardial cavity, and the visceral pericardium?
This coiled, tubular gland secretes into hair follicles at the armpits and external genitalia.
What are apocrine glands?