Lab 5 - Squid Flashcards
Paired, feathery organs used for respiration
Gills
Thin tube connecting the mouth to the stomach
Esophagus
Small sac where food is stored and digested; digestion is entirely extracellular in cephalopods
Stomach
Small, granular digestive gland that secretes enzymes into the stomach to assist in the breakdown of food
Pancreas
Large, elongated gland that releases secretions into the stomach to facilitate enzymatic digestion of food
Liver
Large, thin-walled digestive chamber prominent along the dorsal end of the body
Cecum
Portion of digestive tract leading to anus
Rectum
Large sac that opens into the rectum and secretes a dark brown or black fluid when the animal is alarmed
Ink Sac
Terminal portion of digestive tract located near siphon
Anus
Produces sperm; located in dorsal end of body tube
Testes
Open-ended chamber that receives and stores sperm
Vas deferens
Coiled, convoluted tubules that package sperm cells into spermatophore packets
Spermatophoric gland (male)
Muscular organ that gathers spermatophores and releases them outside the body where they are transferred by the male’s hectocotylus to the female during mating
Penis (male)
Site of egg production
Ovary (female)
Open-ended chamber that receives eggs from the ovary
Oviduct (female)
