Anaphy (Integumentary System Part 2)

The epidermis is composed of several types of cells. Most
cells of the epidermis are called

produce the pigment melanin, which contributes to skin color

are specialized epidermal cells associated with
the nerve endings responsible for detecting light touch and superficial pressure

This stratum derives its name from the
presence of protein granules of

Two Tissue Layers of Dermis

is loose connective
tissue with thin fibers that are somewhat loosely arranged

which is composed of dense irregular
connective tissue, is the main layer of the dermis

which is composed of dense irregular
connective tissue, is the main layer of the dermis

structure of the skin which protrudes above the surface
of the skin

The base of the root is expanded to form the

is the central axis of the hair, and it consists of two or three layers of cells containing soft keratin

surrounds the medulla and forms the bulk of the hair

is a tubelike invagination of the epidermis
that extends into the dermis

Associated with each hair follicle are smooth muscle cells called

2 types of sweat glands

are the most
common type of sweat gland.

The resulting hyposmotic fluid that leaves the duct is called

are simple, coiled, tubular
glands that usually open into hair follicles superficial to the opening of the sebaceous gland

are modified apocrine sweat glands
located in the breasts. They produce milk

has all five epithelial strata

contains fewer cell layers per stratum, and the stratum
lucidum is usually absent. Hair is found only in thin skin

is connective tissue divided into two layers

Produces cells of the most superficial strata; melanocytes produce and contribute melanin, which protects against ultraviolet light

Produces keratin fibers; lamellar bodies form inside keratinocytes

Produces keratohyalin granules; lamellar bodies release lipids from cells; cells die

Disperses keratohyalin around keratin fibers

Provides structural strength due to keratin within cells; prevents water loss due to lipids surrounding cells; sloughing off of most superficial cells resists abrasion