The Dermis and Hypodermis

Topic 3 Lesson 2 NurseHub

Hypothalimus

Regulates body temperature.

Dermis

The middle layer of skin, contains collagen, blood vessels, glands, hair follicles, and nerve endings support and protect the skin and deeper layers, assist in thermoregulation, and aid in sensation.

Hypodermis (Subcutaneous)

The innermost layer of skin, storing energy, connecting the dermis layer of your skin to your muscles and bones, insulating your body, and protecting your body from harm.

Dermal Papillae

Protrusions of dermal connective tissue into the epidermal layer.

Sebaceous Glands

Microscopic exocrine gland in the skin that opens into a hair follicle to secrete an oily or waxy matter, called sebum

Sudiferous Glands (Sweat Glands)

Found in the dermis, the sweat duct that transports the secretion to the surface of the epidermis (eccrine glands) or into a hair follicle (apocrine glands).

Eccrine Glands

Sweat glands that are the most numerous and widely distributed over the body.

Hair Follicles

a tube-like structure (pore) that surrounds the root and strand of a hair.

Arrector Pili Muscles

Contract in response to cold, fear, or other stimuli. Pull the hair follicle upright, causing the hair to stand on end and create "goosebumps" 

Appocrine Glands

secrete their substances into the hair follicles. The secretions of these glands can develop odor.

Tactile Corpuscle

detects light touch and low-frequency vibrations.

Lamellated Corpuscle

sensory receptor that detects deep pressure and high-frequency vibrations.

Cutaneous Plexus

a network of arteries or nerves, or both, located in or near the skin.

Ceruminous Gland

a type of modified apocrine sweat gland found in the external auditory canal. It produces cerumen that lubricates the ear, protects the tympanic membrane, and protects the ear from microbes. lubricate the outer ear and not the inner ear.

ABCDE Rule

stands for asymmetry, border, color, diameter and evolving. These are the characteristics of skin damage that doctors look for when diagnosing and classifying melanomas.