&part1=Olfactory Bulb
&part1_description=Part of the smell apparatus of the brain. Connected by nerves to both the olfactory lobe of the brain and to the smell receptors the line the nostrils.

&part2=Skull
&part2_description=Complex bony or cartilaginous protective skeleton of the head and support for moving parts such as the jaws and gill flaps.

&part3=Brain
&part3_description=The centralized part of the nervous system that includes all higher nervous centers.  Enclosed within the skull and continuous with the spinal cord.

&part4=Spinal Nerve Cord
&part4_description=Nerve fibers that run through the length of the vertebrae and connect to the brain.

&part5=Vertebral Column
&part5_description=Backbone consisting of multiple vertebrae through which the spinal never cord runs.  Support for body muscles (myotomes).

&part6=Myotomes
&part6_description=Blocks of body muscle that "flake" when cooked.  Two myotomes per vertebrae in some fishes.  Each myotome divided into four parts visible in a fish "steak".

&part8=Ovary
&part8_description=Paired female reproductive organs.

&part9=Gas Bladder
&part9_description=Gas-filled structure used to control buoyancy, produce or receive sound, and respiration.  Derived from digestive system or lung. May be absent.

&part10=Kidney
&part10_description=Paired excretory organ that filters wastes (urea) from blood.  Excretes waste and water as urine, and regulates osmotic concentration.  Variable structure and function.  

&part11=Stomach
&part11_description=Hollow, muscular organ between the esophagus and intestines where food is digested.  True stomach absent in many fishes.
  
&part12=Intestine
&part12_description=Elongate tubular canal, past the stomach and pyloric caeca.  Functions in digestion and elimination.  Shorter in  carnivores than herbivores.
 
&part13=Spleen
&part13_description=Structure involved in blood-cell formation.

&part14=Liver
&part14_description=Large usually bilobed gland that secretes bile and stores glycogen, among other functions.  Bile is used to digest fats.

&part15=Heart
&part15_description=Muscle that contracts and pumps blood that circulates through the body.

&part16=Gills
&part16_description=Paired structures used to extract dissolved oxygen from water. Consists of finely divided surface across which water flows and oxygen dissolves into the bloodstream.