A&P Chapter 3 Quiz Review

The epidermis consists of five layers, with the deepest layer being the ___________.

• stratum corneum

• stratum lucidum

• stratum granulosum

• stratum basale

The primary protein produced by keratinocytes is ___________.

• keratin

• collagen

• elastin

• melanin

___________ are cells in the epidermis responsible for detecting foreign pathogens and initiating immune responses.

• Langerhans cells

• Keratinocytes

• Melanocytes

• Fibroblasts

Melanocytes are found in the ___________ layer of the epidermis.

• stratum basale

• stratum corneum

• stratum lucidum

• stratum granulosum

The sensory receptors found in the papillary layer of the dermis responsible for the perception of touch, pressure and low frequency vibrations are ___________ corpuscles.

• Meissner's

• Pacinian

• Ruffini

• Merkel

The ___________ layer of the dermis contains dense irregular connective tissue.

• papillary

• reticular

• epidermal

• subcutaneous

The hypodermis primarily consists of ___________ tissue, which provides insulation and energy storage.

• adipose

• muscle

• epithelial

• nervous

Keratinocytes originate from ___________ stem cells located in the stratum basale.

• epidermal

• dermal

• mesenchymal

• neural

The ___________ is the layer of the epidermis where cells begin to produce keratohyalin.

• stratum corneum

• stratum lucidum

• stratum granulosum

• stratum basale

___________ receptors on keratinocytes help recognize and respond to microbial infections.

• Toll-like

• G-protein coupled

• Ion channel

• Nuclear