Lab 10 – Animal Diversity 2 Deuterostomes

A collection of vocabulary flashcards covering key terms and definitions from Lab 10 on Animal Diversity 2 Deuterostomes.

Deuterostomes

A category of animals that includes organisms like sea stars and humans, characterized by their developmental stage.

Phylum Echinodermata

A phylum of marine animals including sea stars, characterized by a unique water-vascular system.

Water-vascular system

A unique system found in echinoderms, consisting of canals carrying water that aids in movement and feeding.

Madreporite

A porous plate on echinoderms that serves as an entry point for water into the water-vascular system.

Tube feet

Small, suction cup-like structures found on echinoderms that aid in locomotion and feeding.

Endoskeleton

An internal skeleton found in echinoderms, made of calcareous plates.

Phylum Chordata

A phylum of animals that includes both invertebrates and vertebrates, characterized by having a notochord.

Notochord

A flexible rod that serves as a primary support structure in chordates, located ventral to the nerve cord.

Subphylum Cephalochordata

A subphylum within Chordata that includes lancelets, which are invertebrate chordates.

Amphioxus

A genus of lancelets, small marine animals that exhibit basic chordate features.

Pharynx with gill slits

A structure in lancelets that aids in feeding and respiration, featuring openings for water flow.

Class Mammalia

A class that includes mammals, characterized by mammary glands and hair on the body.

Endothermic

Refers to mammals that maintain a constant body temperature through internal metabolic processes.

Peritoneum

A fine membrane lining the abdominal cavity and covering the abdominal viscera in mammals.

Digestive system

The system responsible for breaking down food and absorbing nutrients within the body.

Pericardium

A fibrous sac enclosing the heart and larger blood vessels.

Cerebrum

The largest part of the brain responsible for various higher brain functions, including voluntary movement and cognition.

Cerebellum

A brain region responsible for coordinating voluntary movements and maintaining balance.

Olfactory Bulbs

Paired structures at the front of the brain involved in the sense of smell.

Chordata

A phylum that includes animals like mammals, birds, reptiles, amphibians, and fish, characterized by features such as a notochord.