receptor in the hypothalamus that monitors the concentration of electrolytes in the blood

mechanism by which water and solute concentrations are maintained at desired levels

organism that maintains its tonicity irrespective of its environment

transport of water through a semipermeable membrane according to the water's concentration gradient across the membrane that results from the presence of solute that cannot pass through the membrane

balance of the amount of water and salt input and output to and from a biological system without disturbing the desired osmotic pressure and solute concentration in every compartment

pressure exerted on a membrane to equalize solute concentration on either side

connective tissue that constitutes the endoskeleton

one of the three bones of the middle ear

(also, osteogenesis) process of bone formation by osteoblasts

bony fish

bone cell responsible for bone formation

large bone cells with up to 50 nuclei, responsible for bone remodeling

mature bone cells and the main cell in bone tissue

subunit of compact bone

cylindrical structure aligned parallel to the long axis of the bone