Integumentary, Skeletal, Muscular Systems Flashcards
what is the function of the integumentary system?
Protection
Vitamin D production
Sensory receptors
Excretion
Temperature regulation
what are the layers of the skin?
Epidermis
Dermis
Hypodermis
describe the epidermis
outermost layer of the skin
contains living and dead cells
deepest layer produces pigment
describe the dermis layer
middle layer of the skin
made up of connective tissue = elasticity/strength
contains blood vessels;s, nerves, sweat/oil glands, hair follicles
describe the hypodermis
bottom layer
made of fat (adipose) and connective tissue
controls body temperature
what is the function of the skeletal system?
support
protect
assist in movement
storage of minerals
blood cell production
bone growth
what important minerals are stored in the bones?
calcium and phosphate
describe blood cell production
red/white blood cells are formed in the red bone marrow
found in flat bones/ends of long bones
what are the classification of bones?
long
short
flat
irregular
describe long bones
longer than wide
ex: femur/humerus
describe short bones
allow movement
provide elasticity, flexibility, shock absorption
ex: bones of wrist/ankle
describe flat bones
protect/provide attachment sites for muscles
ex: ribs, sternum, scapula
describe irregular bones
support weight
dissipate loads
protect the spinal cord
contribute to movement
provide sites for muscle attachment
ex: skull, vertebrae
what are joints?
the region where two or more bones meet
what are the groups within joints?
fibrous
cartilaginous
synovial
describe fibrous joints
immovable joints
bones in close contact
ex: skull
describe cartilaginous joints
slightly moveable joints
held together by cartilage/ligaments
ex: vertebrae
describe synovial joints
freely movable joints
ex: knee and elbow
what is the function of the muscular system?
produce body movement
stabilize joints
posture
heat production
what are the types of body movement?
voluntary
involuntary
describe voluntary movement
conscious control
describe involuntary movement
not controlled consciously
what are the types of muscle tissue
cardiac
skeletal
smooth
describe cardiac muscle
found in the heart
involuntary muscles
pushes blood into arteries
