INTEGUMENTARY SYSTEM Flashcards
epithelial coverings, skeletons, and muscles are interrelated in these 3 functions
protection,
support, and
movement
these protect underlying tissues and have several other functions
epithelial coverings
this system can range from fluid-filled compartments to shells, to a system of bones
skeletal system
these two systems work together to produce movement
the skeletal system and muscular system
this tissue covers and protects all external and internal surfaces of the animal body, and may be modified as sensory cells that detect light, chemical stimuli, or mechanical stimuli
epithelial tissue
in insects, the epithelium secretes a ________; mollusks secrete a shell made of ____________
CUTICLE;
CALCIUM CARBONATE
arthropod exoskeleton is a good example of what
animal adaptation to its structures
this system includes the skin and a variety of structures that develop from it
vertebrate integumentary system
in _________, structures derived from skin include claws (or nails) hair, sweat glands, oil glands, and several types of sensory receptors (pressure, temperature, and pain)
mammals
mammalian skin also contains these glands, specialized in females for secretion of milk
MAMMARY GLANDS
this layer of the skin provides a waterproof barrier and creates our skin tone
EPIDERMIS
the epidermis consists of two strata:
STRATUM BASALE (bottom) STRATUM CORNEUM (top)
what layer is beneath the epidermis
DERMIS
this layer of the skin is a dense, fibrous connective tissue composed mainly of collagen fibers
DERMIS
this layer of the skin contains the blood vessels, sensory receptors, hair follicles and sweat glands
DERMIS
these cells in stratum basale and the dermis produce melanin
PIGMENT CELLS (such as melanocytes)
these cells found in the skin produce keratin
EPIDERMAL CELLS
in humans, exposure to ultraviolet radiation causes the epidermis to ________ and ___________
thicken;
stimulates pigment cells to produce melanin, an important protective sunscreen
how can UV radiation cause skin cancer
UV radiation damages DNA, causing mutations that lead to skin cancer
the most lethal type of skin cancer
MALIGNANT MELANOMA
what organ in our body produces vitamin D
skin
what are the seven different types of tissues found in the skin
STRATIFIED SQUAMOUS EPITHELIUM (epidermis)
DENSE CONNECTIVE TISSUE (dermis)
MUSCLE TISSUE (arrector pili)
ADIPOSE CONNECTIVE TISSUE (subcutaneous layer)
NERVOUS TISSUE (sensory receptors)
SIMPLE CUBOIDAL EPITHELIUM (wall of glands)
CONNECTIVE TISSUE (blood)
