Ch. 8 SKIN General Flashcards
Term for skin as an organ
Cutaneous Membrane
Most prominent organ of the integumentary system
Skin
Organs comprising the integumentary system other than the skin
Skin derivatives (accessory organs)
Where do skin derivatives originate from?
Modified skin cells early in fetal development
What tissues make up the majority of the dermis?
Dense irregular and areolar connective tissues
Another term for the hypodermis
Subcutaneous Tissue
What tissues make up the hypodermis?
Areolar and adipose connective tissues
What tissue makes up the epidermis?
Stratified squamous epithelium
What does the relative depth of the epidermis determine?
Whether skin is considered thick or thin
Why is thin skin called hirsute skin?
Because it often has hair
hirsute= hairy
Why is thick skin called glabrous skin?
Because it lacks hair
glabrous= smooth
What type of gland does thick skin lack?
Sebaceous (oil) glands
3 classifications of epidermal surface features on adult skin
Surface pattern lines
Flexure lines
Friction ridges
What type of epidermal surface feature has triangular/polygonal line patterns seen only on thin skin?
Surface pattern lines
What type of epidermal surface feature is deeper than surface pattern lines and exists in areas that are repeatedly flexed?
Flexure lines
