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Study Guide 1 Vocabulary
Study Guide 1 Vocabulary
19
Anatomy
Undergraduate 3
02/04/2013

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Term
Wheel Organ
Definition
Projections into the vestibule of Amphioxus (Feeding organ that creats water current into mouth)
Term
Pharynx
Definition
A pharynx that is perforated by openings to either the exterior or an atrium.
Term
Atrium
Definition
Where respiratory water is deposited
Term
Atriopore
Definition
Oxygen depleted water is ejected via an atriopore
Term
Coelom
Definition
Body Cavity
Term
Myomere
Definition
One of a series of muscle segments
Term
Endostyle
Definition
Midventral mucus-producing organ groove in pharynx of Protochordates; homologue of Craniate thyroid.
Term
Hepatic Caecum
Definition
Protochordates' hepatic organ; homologue to liver
Term
Notochord
Definition
Cord-like skeleton of the back
Term
Sinus Venosus
Definition
Thin walled chamber in the heart receiving venous blood; partially incorporated into the atrium or serving as SA node in amniotes.
Term
Tunic
Definition
Coat or wrap
Term
Incurrent Siphon
Definition
Opening in a turnicate (Urochordata) for the entrance of water
Term
Excurrent Siphon
Definition
Opening in a turnicate (Urochordata) for the exit of water
Term
Ocellus
Definition
Pigmented light-sensitive organ in Amphioxus.
Term
Statocyst (Otolith)
Definition
A small organ of balance and orientation is some aquatic invertebrates, consisting of a sensory vesicle or cell containing statoliths
Term
Adhesive papillae
Definition
Site of attachment in metamorphosing sea squirts
Term
Stomachord
Definition
Diverticulum of the foregut extending into proboseis in acorn worms
Term
Gametes
Definition

A mature haploid male or female germ cell that is able to unite with anoter of the opposite sex in sexual reproduction to form a zygote

 

Term
Metazoans
Definition
Multicellular anomals with differentiated tissues
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