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Exam 2
Integumentary and Skeletal System
25
Anatomy
Undergraduate 1
09/20/2011

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Term
integumentary system
Definition
Composed of skin, hair, oil & sweat glands, nails, & sensory receptors
Maintains body temperature, protects body, & provides sensory information of the environment
Body’s first line of defense
Term
Dermatology
Definition
study of skin
Term
Integument
Definition
Covers external surface of body
Largest organ in the body
2 m2 (22 ft2) and ~5 kg (~11 lbs)
Thickness ranges
Two main parts: Epidermis & dermis
Term
arthrology
Definition
arthr-joint; logy-study of
Term
kinesiology
Definition
kinesi-movement logy-study of
Term
fibrous joints
Definition
no synovial cavity; dense irregular connective tissue (collagen fibers) little movement; sutures; syndesmoses; interosseous membranes
Term
cartilaginous joints
Definition
no synovial cavity; cartlilage medium movement;
Term
synovial joints
Definition
synovial cavity; dense irregular connective tissues most movement; planar joints-biaxial; hinge joints- convex&concave; pivot joints-monoaxial; condyloid joints-knuckle
Term
synarthosis
Definition
immoveable joints
Term
amphiarthorsis
Definition
slightly moveable
Term
bursae
Definition
saclike structures- resemble joint capsules
Term
tendon sheath
Definition
tubelike bursae, wrap around tendons
Term
flexion
Definition
decrease in angle between articulating bones
Term
extension
Definition
increase in angle between articulating bones
Term
abduction
Definition
away from the midline
Term
adduction
Definition
toward the midline
Term
circumduction
Definition
movement of the distal end of a body part in a circle
Term
elevation
Definition
closing mouth
Term
depression
Definition
opening mouth
Term
protraction
Definition
jaw out
Term
retraction
Definition
jaw back
Term
saddle joints
Definition
(synovial)- articular surface fits into a saddle
Term
osteogenic cell
Definition
transforms into an osteoblast
Term
osteoclast
Definition
functions in resorption, breakdown of bone matrix
Term
osteocyte
Definition
maintains bone tissue
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