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Sharde Lamar
Anatomy
Term | Definition |
---|---|
hyperpolarization | potassium ions keep leaking out of the cell via potassium channels. This diffusion of potassium ions (positively charged ions) into the extracellular space makes the membrane potential more ne |
Repolarization | is a stage of an action potential in which the cell experiences a decrease of voltage due to the efflux of potassium (K+) ions along its electrochemical gradient. |
acetylcholine (ACh) | neurotransmitter that binds at a motor end-plate to trigger depolarisation. |
actin | protein that makes up most of the thin myofilaments in a sarcomere muscle fibre. |
action potential | change in voltage of a cell membrane in response to a stimulus that results in transmission of an electrical signal; unique to neurons and muscle fibres. |
cartilage | semi-rigid connective tissue found on the skeleton in areas where flexibility and smooth surfaces support movement. |
central nervous system (CNS) | anatomical division of the nervous system located within the cranial and vertebral cavities, namely the brain and spinal cord. |
coxal bone | hip bone |
dorsal | describes the back or direction toward the back of the body; also referred to as posterior. |
elastic cartilage | type of cartilage, with elastin as the major protein, characterised by rigid support as well as elasticity |
homeostasis | steady state of body systems that living organisms maintain. |