Integumentary Lab
__________ glands are found primarily in the genital and axillary areas.
Apocrine
Vitiligo is a disorder in which the pigmentation of the skin is uneven, resulting in white patches. Recent research suggests that vitiligo might be an autoimmune disorder. Which cells would you expect to be most affected?
Melanocytes
This structure located in the epidermis serves as a tactile (touch) receptor.
Merkel cell
Which of the statements below is true for both eccrine and apocrine glands?
They produce sweat.
The ________ is the structure responsible for goose bumps.
arrector pili
The hypodermis is ________.
composed primarily of adipose tissue
Pressure receptors, called lamellar (Pacinian) corpuscles, are located in this layer of the integument.
dermal reticular layer
These are the most abundant epidermal cells.
keratinocytes
This layer of the dermis is responsible for fingerprints.
papillary layer
The ducts of __________ glands usually empty into a hair follicle but may also open directly on the skin surface.
sebaceous
These glands are found all over the skin except in the palms of the hands and soles of the feet. They produce an oily substance that lubricates skin and hair.
sebaceous glands
The portion of a hair that projects from the scalp surface is known as the __________.
shaft
Like all epithelial membranes, the skin has an epithelial layer and a connective tissue layer. The keratinized epithelial and connective tissues are ________.
stratified squamous and dense irregular
From deep to superficial, the layers of the epidermis of thin skin are ________.
stratum basale, stratum spinosum, stratum granulosum, stratum corneum
The cells in this layer of epidermis are dead, and their flat, scale-like remnants are filled with keratin.
stratum corneum
The most superficial layer of the epidermis is the __________.
stratum corneum
This layer of the epidermis contains translucent cells filled with keratin fibrils. It is found only in thick skin.
stratum lucidum
Nails originate from the epidermis.
true
