Porifera-related terms
Asconoid – simplest canals
Synconoid – more complex canals
Leukonoid – best canals
Cnidaria-related terms
Gland cell – for digestion
Gastral filaments – stinging cells inside the gut of scyphozoans
Solenia – gastrodermal tubes in hexacorallia
Platyhelmithes-related terms
Rhabdite – rod like defensive structures and the cells that produce them in turbellaria.
Protonephridia (flame cells) – the excretory system in flatworms.
Nephridiopore – where the uric acid comes out.
Annelida-related terms
Mesentry – partitions between the right and left side of the body
Septa - partitions between coelom sacs
Peritoneum (‫ – )קרום צפק‬epithelial mesoderm that lines the coelom.
Parapodia – body wall that protrudes and serves as gills (mostly polychaeta)
Crop – where food is stored
Gizzard – where food is digested mechanically and with acidic enzymes.
Intestine – where food is digested mechanically and with alkaline enzymes.
Rectum – where water and nutrients are reabsorbed.
(meta)nephridia – excretory system
Nephrostome – funnel opening in one segment.
Nephridiopore – excretory site in the next.
Palps – sensory appendages in polychaeta
Sex atrium – where semen stored is after fuckies
Trochophores – Larvae that develop via metabolous
Clitellum – thick band on oligochaeta that secretes mucus for fuckies.
Vesiculae seminalis – stores semen before fuckies (oligo)
Recepticula seminalis – stores semen after fuckies (oligo)
Arthropoda-related terms
Epicuticle- external layer
Procuticle – internal layer, made of Exocuticle and endocuticle
Apodem – inward fold of the epidermis that serves as an attachment for muscles.
Holometabolous – cocoon
Hemimetabolous – no cocoon
Haemolymph – mixture of blood and coelom fluid.
Haemocoelom – the joint blood-coelom system
Proto-, deutero- tritocerebrum – the three brains of arthropods.
Sensillae (seta) – sensory hairs growing through the cuticle.
Retinulae – photosensitive cells
Omatidia – one cell of a compound eye
Rhabdom – the pillar running down the middle containing rhodopsin
Mandibles – main upper jaws
Maxillae – auxiliary jaws
Hypopharynx – lower jaws
Malpighian tubes – drain into intestine
Coxal glands – absorb waste in spiders
Echinodermata-related terms
Ambulacral – system of water legs designed for movement
Madreporite – the water's entrance into the echinoderm
Stone canal – connects the madreporite with the ring canal
Ring canal – supplies water to the water canals
Pyloric duct – tube in each arm for digestion
Pyloric caecum – digestive tract
Aristotle's lantern – chewing mechanism in sea urchins
Pedicellaria – small pincers that remove waste from the echinoderms body