What are the two major components of the Integumentary System?
- Cutaneous Membrane
- Accessory Structures
What are the three layers of the Integumentary System?
- Subcutaneous or Hypodermis
What are the five major functions of the Integument?
- Temperature Maintenance
- Synthesis and storage of nutrients
- Sensory Reception
- Excretion and Secretion
Thick skin is found on the palms of the hands and soles of the feet. How many layers does the thick skin consist of?
Thin skin is found on majority of the body. How many layers does the thin skin consist of?
Name the 5 layers of the thick skin. (internal to external)
- Stratum germinativum
- Stratum spinosum
- stratum granulosum
- stratum lucidum
- stratum corneum
What is the deepest layer of the thick skin?
________ membrane separates the epidermis from the dermis.
Large stem cells or_______ cells dominate the stratum germinativium making it the layer where new cells are generated and begin to grow.
The divison of ___________cells replace cells that are lost or shed at the epithelial surface.
What layer of thick skin consist of cell division and add thickness to the epithelium?
Stratum spinosum(spiny layer)
In the _______ cells have stopped dividing and start to produce the protein keratin.
stratum granulosum(grainy layer)
What is extremely durable and water-resistant?
What are the 4 functions of Keratin?
- Coats the skin
- Forms the
- basic structure of hair, calluses, and nails
The ________ is the most superficial layer and consist of 15-30 layers of flattened, dead epithelial cells. It also contains large amounts of Keratin
How long does it take for the cells to progress through the layers where it is then shed off?
The color of your skin is caused by what two interactions?
- epidermal pigmentation
- dermal blood supply
______ is a orange-yellow pigment that normally accumulates in epidermal cells. It can be converted into vitamin A and it is also found in orange colored vegetables.
_____ is a brown, yellow-brown, or black pigment produced by melanocytes.
What is the most common form of skin cancer?
Basal cell carcinoma
What is the layer named after the dermal papillae? It consist of loose connective tissue that supports and nourishes the epidermis.
What sweat glands that secrete their products into hair follicles in the armpits, nipples, and groin?
Apocrine Sweat glands
What is the most common sweat gland? They discharge their secretions directly onto the surface of the skin.
______ gives sweat its salty taste.
What burn only involves epidermis and is also called superficial burns?
What burn involves epidermis and dermis? Intense pain and blistering usually occur, also called partial-thickness burn.
second degree burns
What burn involves damage to all three layers of skin? Also called full thickness burn.
Name the 5 primary functions of the skeletal system.
- produce blood cell
_______ accounts for almost 2/3 weight of bone.
A long bone has a central shaft called?
The Central marrow cavity contains what?
The end of each bone contains ________ which are covered by ______.
Epiphsis and articular cartliage
The outer surface of the bone is covered by______, fibers of tendons and ligaments intermingle with this and attach the skeletal muscle to bone.
_______ lines the marrow cavity and other inner surfaces.