Body Systems (SMSDFE) Flashcards
(48 cards)
What are the Skeletal Functions?
shape & support, move (locomotion), protect organs, produce blood cell, store minerals
What is the Vertebral Column?
backbone
What is the vertebrae?
disc-like small bones separated
by cartilage
What are joints?
where two bones come together;
allows bones to move in different ways
What are ligaments?
tissue holding joints together;
bone to bone
What is cartilage?
cushion
What is the hinge joint?
Hinge joint: forward/backward; ex: knee,
elbow
What is the ball and socket joint?
free movement; ex:
shoulder, hip
What is the pivot joint?
side to side rotation; ex: neck
What is the gliding joint?
sliding motion; ex: wrist,
ankle
What is the Compact Bone?
hard, dense;
carrying blood vessels and nerves
What is the Spongy Bone?
holes (porous);
lightweight but strong
What is Marrow?
soft tissue inside bone
What are Involuntary Muscles?
not under conscious control
What are Voluntary Muscles?
under conscious control
What does striated mean?
muscles with lines
What does nonstriated mean?
muscles without lines
What are the 3 types of muscles?
Cardiac muscles, Smooth muscles, Skeletal muscles
Why do muscles work in pairs?
Muscle cells can only contract (they can not extend or expand).One muscle contracts, the other muscle
relaxes
What are the Skin Functions?
Covers and protects from injury, infection,
water loss
Regulates body temperature
Removes waste (perspiration)
Collects environmental information
Produces Vitamin D
What does the skin consist of?
epidermis – outer layer
dermis – inner layer
What are the Epidermis Fuctions?
protects, cushions, carries away
bacteria, produces melanin.
What is Melanin?
skin (color) pigment which protects
against burning
What are sweat glands?
produce perspiration
