chapter 5 Integumentary Flashcards
the skin provides ? with chemical, physical and biological barriers from:
protection
skin provides protection from ?
mechanical damage pathogens environmental toxins harmful UV radiation excessive water loss
regulation of body temperature through control of peripheral blood flow, sweating, and pilo-erection
thermoregulation
heat, cold, pain, and deep and light pressure receptors are abundant as cutaneous sensory receptors
sensation
vitamin D, when the skin is stimulated by sunlight
synthesis
incidental elimination of water, salts & urea through sweat secreted for temperature regulation
excretion
The skins consists of two major layers that are?
the deeper dermis (‘true skin’)
and the more superficial epidermis.
Below the skin is the subcutaneous layer known as ? and is technically not part of the skin but associated with it
hypodermis (superficial fascia loose connective tissue),
hypodermis consists of what kind of cell/tissue common in the subcutaneous layer and which functions to store excess food energy, cushion the body, and help to insulate the body against excessive heat loss.
adipose tissue
The dermis has two sub layers called
reticular layer and papillary layer
the deepest sub layer of the dermis that adheres to the subcutaneous layer and is thicker 80% of the dermis is called
reticular layer
reticular layer consists of what kind of tissue
dense irregular, connective tissue
what kind of glands are associated with the reticular layer?
sudoriferous glands and sebaceous glands.
this sublayer is adjacent to the epidermis and thinner
papillary
papillary layer consists of what kind of tissue
loose connective tissue
what kind of irregulatories are shown with the papillary layer?
(ridges and papillae) often are reflected as irregularities in the surface of the epidermis, above (e.g., finger prints and texture of skin).
is the outermost layer of the skin and Skin appendages are derivatives from the
epidermis
what kind of tissue is the epidermis and literally means “many layers of flattened cells.”
stratified squamous epithelium