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41 Cards in this Set
- Front
- Back
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epidermis?
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top layer of the skin
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dermis?
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contains specialized epithelial cells to form hair and nails.
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what does the dermis contain?
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hair follicles
sweat glands connective tissue nerve endings blood vessels sebaceous glands |
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where do wrinkles develop?
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dermis
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melanin?
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skin color
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axial skeleton?
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cranium (skull), vertebrate
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appendicular system?
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arms and legs, pectoral girdle and pelvic girdle
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function for the skeleton?
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support
anchor point for muscles protective cage for internal organs |
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describe skull?
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frontal bone, parietal, occipital, temporal, nasal, maxillia, mandible
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describe spine?
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7 cervical: atlas and axis
12 thoracic 5 lumbar sacrum coccyx cartilaginous disks between vertebrae |
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periosteum?
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tough covering which supplies blood vessels, nutrients and oxygen to the bone
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what are the 5 structures of the bone?
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periosteum
shaft compact bone spongy bone osteocytes |
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compact bone?
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dense strong bone
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what are the two types of compact bone?
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haversian canals
lamella |
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haversian canals?
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network of tubes with vessels and nerves
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lamella?
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circular layers
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two types of spongy bone?
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red marrow
yellow marrow |
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spongy bone?
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porous bone
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yellow marrow?
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contains fat and nerve cells
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red marrow?
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found in the spongy bone makes red and white blood cells
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osteocytes?
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cells that manufacture bone cells- embedded in compact and spongy layers
deposits calcium to make the bone |
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ligaments?
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connect bone to bone
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tendons?
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connect muscle to bone
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joints?
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place where 2 bones come together
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immovable joint?
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no movement, interlocking pieces of puzzle: skull
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4 types of movable bones?
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ball and socket
hinge pivot gliding |
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ball and socket?
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widest range of motion, circular type of movement
hip (femur and pelvis) & shoulder |
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hinge?
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back and forth movement: elbow and knee
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pivot?
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allows side to side and up and down movement: atlas/axis
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gliding?
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some bending and twisting: wrist and vertebrate
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3 types of muscle?
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striated muscle
smooth muscle cardiac muscle |
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striated muscle?
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voluntary- skeletal muscle
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smooth muscle?
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voluntary- muscles surrounding internal organs, arteries and diaphragm
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cardiac muscle?
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heart muscle
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list of 6 in muscular system?
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actin and myosin, filaments, myofibrils, muscle fibers, bundles, muscle
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flexor?
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biceps- causes limbs to flex (bend)
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extensors?
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triceps- causes limbs to extend (straighten)
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origin?
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tendon location where muscle starts (proximal end)
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insertion?
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tendon location on adjacent bone (distal end)
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T or F:
nerve impulses do not contract the muscle |
false, never impulses DO contract the muscle
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skeletal muscle are usual found in?
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antagonistic pairs
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