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40 Cards in this Set
- Front
- Back
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ABORAL SURFACE
ab-oral surface |
the surface which is away from the mouth (does not contain the mouth). ab = away, oral= mouth
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CARDIAC STOMACH
car-di-ac stomach |
the lower (oral) portion of the stomach in starfish. It may be everted during feeding
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CHITIN
chi-tin |
the organic component of arthropod exoskeleton, consisting of a complex, nitrogen-containing polysaccharide
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COCOON
co-coon |
a protective covering usually protecting pupa in arthropods, or eggs in annelids
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COMPOUND EYE
com-pound eye |
an eye made up of many units (ommatidia in arthropods)
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DIGESTIVE CAECA (singular ce-cum)
digestive cae-ca |
found in the anterior portion of the midgut. they secrete digestive juices
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DIOECIOUS
di-oe-cious |
having separate sexes where the male and female reproductive systems are found on different individuals
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ENDOSKELETON
en-do-skel-e-ton |
a skeleton covered by other soft body tissues (in contrast with exoskeletons found in animals such as arthropods)
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FOREGUT
fore-gut |
in crayfish, consists of mouth, esophagus and a two chambered stomach
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GANGLION
gang-li-on |
an aggregation of neuron cell bodies
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GASTRIC MILL
gast-ric mill |
a grinding structure found in within the stomach of crustaceans
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GASTROLITH
gas-tro-lith |
a storage structure that contains high levels of calcium
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GIZZARD
gizz-ard |
a portion of the foregut that contains chitinized teeth that grinds food
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GONADS
go-nads |
an organ that produces sex cells in animals (ovary: females, testis: males)
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HEMIMETABOLOUS
hemi-meta-bol-ous |
a life cycle in which the egg hatches into an organism similar to the adult. Oftentimes called DIRECT to imply the absence of a dramatic metamorphosis.
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HEMOLYMPH
hemo-lymph |
the fluid found within an organism that has an open circulatory system
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HEMOCOEL
hemo-coel (hemocell) |
sinus or space filled with blood; not a true coelom
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HEPATIC CAECA
he-pat-ic cae-ca |
found in starfish, also called pyloric or digestive caeca. Most digestion and absorption of food occurs here
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HERMAPHRODITE/ MONOECIOUS (pronounced mo-ne-cious)
herm-aphro-dite |
having both male and female reproductive systems in the same individual. Another term is monoecious
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HOLOMETABOLOUS
holo-meta-bol-ous |
A life cycle in which the egg hatches into an organism very dissimilar to the adult. Oftentimes called INDIRECT to emphasize the presence of a dramatic metamorphosis. In this life cycle, terms larva and pupa can be used.
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LARVA
lar-va |
the immature stage of an invertebrate which differs greatly from the adult. Term used to describe stage of holometabolous life cycle.
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MADREPORITE
mad-re-po-rite |
sieve-like opening to that water-vascular system in starfish. It is perforated by small holes that are lined with cilia
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MALPIGHIAN TUBULES
mal-pig-hian tub-ules |
a type of protonephridium found in insects
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MOLTING
molt-ing |
the process of shedding all or part of an outter covering
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OMMATIDIUM
om-ma-tid-i-um |
one of the many units (up to 2,000) in the compund eye of arthropods
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PUPA
pu-pa |
the encased developmental stage that intervenes between the larva and the adult in holometabolous insects
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PERICARDIUM
peri-car-di-um |
in arthropods, the sinus around the heart
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PYLORIC STOMACH
py-lor-ic sto-mach |
the upper (aboral) portion of the stomach in starfish. Opposite of cardiac stomach
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RECTUM
rec-tum |
terminal portion of the gut which ends at the anus
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SOMITE
so-mite |
a segment
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SPIRACLE
spi-ra-cle |
hole in integument (the tough outer protective layer) for air to enter the trachea. Found in either side of the first 7 or 8 abdominal segments
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SWIMMERETS
swim-mer-ets |
small paired appendages located on the ventral surface of the abdomen of crustaceans used for swimming or reproduction
---get it? swimmerets can mean swimming or sperm |
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TRACHEA
tra-che-a |
silvery tubules as seen in your dissections. the trachea extends from each spiracle and become finely branched tracheoles. I don't know if each trachea is connected.
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Caecum
cae-cum |
a pouch connected to the junction of the small and large intestines
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Echinodermata
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Have 5 phyllum,
Asteroidea, Echinoidea Holothuroidea Ophiuroidea Crinoidea ::::: exclusively MARINE, and only coelomic invertebrates to display RADIAL symmetry AS ADULTS. most have conspicuous CALCAREOUS ENDOSKELETON (covered with surface layer of epithelium). Endoskeleton is made up of SMALL calcareous PLATE joined together by tough connective tissue. |
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Starfish
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Asteroidea
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Sea urchins, sand dollars
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Echinoidea
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Sea cucumbers
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Holothuroidea
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Brittle stars
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Ophiuroidea
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Sea lily, feather stars
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Crinoidea
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