Dermis and Hypodermis (Nursing)

00:01 So just deep to the epidermis, we have the dermal layer.

00:06 Recall that the dermis is the connective tissue layer of the integument.

00:13 The dermis can be subdivided into two different regions.

00:17 The most superficial region is the papillary region.

00:21 This region consist of areolar connective tissue and contains thin collagen as well as fine elastic fibers Also in this layer, you will find the dermal ridges which are going to play a role in the production of your fingertips and it also is going to house blood capillaries and corpuscles of touch which are the nerve endings that allow you to be able to feel touch sensations and also some free nerve endings.

00:56 The second layer deep to the papillary layer is the reticular layer of the dermis.

01:01 This is actually the most abundant layer of the dermis making up four-fifths of the entire dermis.

01:09 It is going to contain dense irregular connective tissue with bundles of thick collagen as well as some elastic fibers.

01:18 Also in this area, you will find adipose cells, hair follicles, nerves, and some of your glands including sebaceous glands and sudoriferous glands.

01:31 Deep to the dermis, we have the hypodermis.

01:34 Recall that the hypodermis is not actually a part of the skin but instead is attached to the skin and serves as an anchor between the skin and the underlying tissues and organs.

01:49 Located in the dermis of the skin, you have several different types of glands.

01:54 First, you have the sebaceous or oil glands which are glands that are directly connected to the hair follicles in the dermis.

02:03 You then have two different types of sweat glands.

02:07 There are eccrine sweat glands which are the most numerous and found all over the body and are not associated with the hair follicle And then you have apocrine sweat glands which are associated with hair follicles.

02:20 Finally, in the ears, you have a modified sweat gland known as ceruminous glands.

02:27 Ceruminous glands produce cerumen or what we refer to as earwax.