integumentary system Flashcards
Functions of the integumentary system
protect, regulates temperature, be aware of surroindings
layers of the skin
epidermis, dermis and subcutaneous
Epidermis
keratin - hardens cells, waterproof
melanocytes - produce pigments
dermis
collagen fibers that prevent tearing elastic fibers that mantain tension blood vessels that nourish skin sensory receptors connective tissue
subcutaneous
Adipose tissue (insulation energy storage)
Which are the accessory organs
nails, hair follicles, oil glands, sweat glands
What is melanoma
Type of cancer from the melanocytes (pigment cells)
What is vitiligo?
Autoimmune skin disease, destruction of melanocytes.
Functions of bones
structure to the body, production of cells, protect organs, movement of body
What is the diaphysis?
the long part of the long bone
what is the epiphysis?
the ends of the long bone
what is the periosteum?
the outside layer of the long bone
which kind of muscle is in the diaphysis
compact bone
which king of muscle is in the epiphysis
spongy bone
what is articular cartilage
the last part of the bone where bone connects
what is scoliosis
condition that causes the spine to curve to the side
what is osteoporosis
loose of mass and minerals in bones loos of minerals so the bone gets weaker, more common in women, more probable to fractures
what is a fracture
disorder of bones caused by stress in a bone
Axial bones
skull, vertebral column, pelvis, sacrum, ribs, sternum
which are the two main layers of the skin?
epidermis and dermis
They are in charge of the contraction of the muscle
actin and myosin
