Integumentary System Flashcards
integumentary system consists of …
nails, hair, sweat glands, and sebaceous glands
what are the 2 layers of the cutaneous?
dermis and epidermis
What is the name of the layer that deals with fat storage?
subcutaneous layer (hypodermis)
What is the largest organ in the body?
skin
What types of tissues does the integument consist of?
epithelial
connective
smooth
nervous
the _____________ tissue serves to protects underlying body layer
epithelial
the ________________ tissues contain blood vessels that provide nutrients, strength, and resilience to the skin
connective
the _______________ muscle tissue controls both blood vessel diameter and hair position
smooth
the _______________________ tissue supports and monitors sensory receptors in the skin
nervous
skin is water __________________, but not water ___________.
resistant
proof
The two distinct layers of the skin are the epidermis and dermis. The layer of __________________________ __________________ epithelium is epidermis. Then the dermis is the deeper layer of dense __________________ __________________ tissue.
stratified squamous
irregular connective
deep to the dermis is a layer of areolar and adipose connective tissue called the subcutaneous layer, or __________________
hypodermis
What are the 5 layers of the epidermis?
TOP
stratum corneum
stratum lucidum
stratum granulosum
stratum spinosum
stratum basale
BOTTOM
What layer is where cells are created and are one cell layer thick?
stratum basale
What layer is made up of keratinocytes and varies on size or depth depending on location (2-5/7 layers thick)
stratum spinosum
what layer is more block-like and is 3-5 cell layers? Transformation of live to dead cells…
stratum granulosum
what layer is more water resistant and above the granulosum? Cells are flatter when cells die
stratum lucidum
What is the most impermeable layer and very thick?
stratum corneum
How many weeks would it take for a wound to heal?
4 weeks
What is a melanocyte and where is it?
produces melanin (pigment)
spinosum
what is an epidermal dendritic (langerhans) cell and where is it?
helps fight infections and localized immune response
spinosum
What are tactile and merkel cells and where are they?
pain perception and pressure (touch)
spinosum
Where is thick skin found and what does it not have?
palms and soles
no hair
TRUE OR FALSE
All 5 epidermal strata are in the thick skin
TRUE