Table of Contents
What is papillary layer responsible for?
The upper, papillary layer, contains a thin arrangement of collagen fibers. The papillary layer supplies nutrients to select layers of the epidermis and regulates temperature. Both of these functions are accomplished with a thin, extensive vascular system that operates similarly to other vascular systems in the body.
In which kind of injection is the fluid released between the upper layers of the epidermis?
A subcutaneous injection is a method of administering medication. Subcutaneous means under the skin. In this type of injection, a short needle is used to inject a drug into the tissue layer between the skin and the muscle.
Where are large blood vessels found that transport nourishment to the skin and nerves?
Underneath the epidermis lies the dermis. The dermis contains: Blood vessels that nourish the skin with oxygen and nutrients.
Where is the papillary layer located?
dermis
The papillary layer is the superficial layer of the dermis that projects into the stratum basale of the epidermis to form finger-like dermal papilla (plural = dermal papillae) (see Figure 5.6).
Where does the papillary layer lie?
The papillary dermis is the superficial layer, lying deep to the epidermis. The papillary dermis is composed of loose connective tissue that is highly vascular.
Where are oil glands located?
The sebaceous glands are located in the dermis, the middle layer of the skin, and they develop from the epithelial cells of the hair follicle itself (the external root sheath of the hair follicle). Sebaceous gland ducts thus usually open up into the upper part of a hair follicle, called the infundibulum.
What is human skin oil made of?
Sebum, secreted by the sebaceous gland in humans, is primarily composed of triglycerides (≈41%), wax esters (≈26%), squalene (≈12%), and free fatty acids (≈16%). The composition of sebum varies across species. Wax esters and squalene are unique to sebum and not produced as final products anywhere else in the body.
What part of the skin provides a protective cushion and energy storage for the body?
161 Cards in this Set
| Coiled structures attached to hair follicles found in the underarm and genital areas that secrete sweat | Apocrine glands |
|---|---|
| What is another name for the subcutaneous layer of the skin? | hypodermis |
| What part of the skin provides a protective cushion and energy storage for the body? | subcutaneous layer |
What tissue is located in the papillary layer?
areolar connective tissue
The papillary layer is made of loose, areolar connective tissue, which means the collagen and elastin fibers of this layer form a loose mesh.
Where are the melanocytes located?
epidermis
A cell in the skin and eyes that produces and contains the pigment called melanin. Anatomy of the skin, showing the epidermis, dermis, and subcutaneous tissue. Melanocytes are in the layer of basal cells at the deepest part of the epidermis.
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