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33 Cards in this Set

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  • Back
anatomy
study of the structure of an organism and the relationship of its parts
appendicular skeleton
bones of the upper and lower extremities of the body
articulation
joint
axial skeleton
the bones of the head, neck, and torso
bursae
small, cushion-like sacs found between moving body parts, making movement easier
cancellous bone
bone containing trabeculae; also known as spongy bone
cell
basic biological and structural unit of the body consisting of a nucleus surrounded by cytoplasm and enclosed by a membrane
compact bone
dense bone; contains Haversian systems
cranial nerve
any of 12 pairs of nerves that attach to the undersurface of the brain & conduct impulses between the brain & structures in the head, neck & thorax
dermis
deeper of 2 major layers of the skin, composed of dense fibrous connective tissue interspersed w/glands, nerve endings & blood vessels
enzyme
biochemical catalyst allowing chemical reactions to take place; functional proteins that regulate various metabolic pathways of the body
epidermis
outermost layer of skin; "false" skin
homeostasis
relative constancy of the normal body's internal environment
insertion
attachment of a muscle to the bone that it moves when contraction occurs
integumentary system
skin & it's related parts
ligament
band of white fibrous tissue connecting bones to other bones
matrix
intracellular substance of a tissue
melanin
brown pigment primarily in skin and hair
membrane
thin, sheetlike structure
meninges
fluid-containing membranes surrrounding the brain & spinal cord
metabolism
complex, intertwining set of chemical processes by which life is made possible for a living organism
nervous system
brain, spinal cord, and nerves
neuroglia
nonexcitable supporting cells of a nervous tissue (glia).
neuron
nerve cell, including its processes (axons/dendrite).
neurotransmitter
chemicals by which neurons communicate; the substance is released by a neuron, diffuses across the synapse, and binds to teh postsynaptic neuron
organelle
cell organ
origin
attachment of a muscle to the bone, which doesn't move when contraction occurs.
physiology
study of body function
reflex
automatic involuntary reaction to a stimulus resulting from a nerve impulse passing over a reflex arc.
skeletal system
bones, cartilage & ligaments that provide the body w/ a rigid framework for support & protection
spinal nerve
nerve that connects the spinal cord to peripheral structures such as the skin & skeletal muscles.
synapse
membrane-to-membrane junction between a neuron & another neuron, effector cell, or sensory cell; function to propagate action potential
tendon
bands or cords of fibrous connective tissue that attach a muscle to a bone or other structure.