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Lecture

BIOB34 Animal Physiology Lecture 1.docx

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Department
Biological Sciences
Course
BIOB34H3
Professor
Rosada Silva
Semester
Fall

Description
Animal Physiology BIOB34 Lecture 1 – Prof DaSilva – September 11, 2012 Tutorials  not marked, but very important  September 20, 2012, 5-7 pm, Room AC223  October 4, 2012, 5-7 pm, Room AC223  November 1, 2012, 5-7 pm, Room AC223 Office Hours: SW540B (after lecture, by appointment) Tuesdays & Thursdays Virtual Office Hours – Mondays from 8-9 pm on blackboard Marking Breakdown Term Test 1 – 25% Term Test 2 – 25% Writing Assignment – 10%  Submission 1: October 9, 2012 by 12 pm  Submission 2: November 13, 2012 by 12 pm Final Exam – 40% -Animal physiology: we must consider the diversity of the animal kingdom Phylum Porifera (Sponges) o Sessile, most simple multicellular organisms o No organs, central body cavity, pores incurrent water o Still animals, still regulate their body FACT: If a sponge is broken up into tiny pieces, each piece would grown into another grown sponge Phylum Cnidaria o Jellyfish, corals or anemones o Can be floating (freeswimming – jellyfish)  Medusae o Corals & anemones – polyps  More sessile, but still have central body cavity within each of them Phylum Platyhelminthes o Flatworm & tapeworms (able to invade intestinal cavities) o Diffusion is used instead of many important body systems to pass important nutrients & liquids throughout the body o No real vision, only sense light with “eye spots” Phylum Nematoda (Roundworms) o Some nematodes are parasitic (e.g. hookworms in the intestine)  Still parasitic in some countries with poorer health conditions Phylum Annelida o Segmented earthworms & leeches o Capable of more complex movements (have the ability to control their inner environment) o Have a closed circulatory system Phylum Anthropoda o Arachnids, crustaceans, insects  Most abundant animals on Earth o Exoskeleton “suit of armour” made of chitin  Makes them able to adapt o Efficient gas exchange allows rapid oxygen supply to muscles  Development of respiratory systems Phylum Chordata o Chordates are individuals or animals that have a spinal cord  Fish, birds, mammals, amphibians & reptiles o Characteristics : dorsal hollow nerve chord  Respiratory systems ( or in fish gill slits) What is Animal Physiology? - Branch of biology that studies how animals perform vital functions - Focuses on the function of tissues, organs & organ systems of multicellular animals - An integrative science - Relies on an understanding of structure & function Themes in Animal Physiology 1. Physiological processes obey the law o
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