1. INTEGUMENTARY SYSTEM THE DERMIS
C L G S B

2. THE DERMIS Dense irregular connective tissue
Collagen and elastic fibers
As we age – number of fibers decrease
VASCULAR – blood vessels help to maintain body temperature
Special structures of DERMIS: nerves, sebaceous (oil) glands, sudoriferous (sweat) glands, blood vessels, hair follicles, etc.

3. 2 LAYERS OF THE DERMIS: PAPILLARY LAYER  RETICULAR LAYER 
Areolar tissue
PAPILLAE are projections into the epidermis that create fingerprints
Pain and touch receptors
RETICULAR LAYER 
Dense irregular tissue
Contains blood vessels and glands

4. Inside the dermal papillae:
Blood capillaries and Meissner corpuscles
Meissner corpuscles are nerve endings in this layer of the dermis that are mechanoreceptors (sensory receptors that respond to pressure for sense of touch)

5. Nerve endings:
There are also nerve endings in the dermal papillae that
are sensitive
to:
hot, cold =
thermoreceptors
pain, itch,
pressure etc.

6. Sensation of Touch: Merkel cells in the stratum basale that are
in contact with sensory
neurons are also function
in recognition of touch