Biology 1102Biology 1102

Lecture 5Lecture 5

Slide 2 - Animalia

Slide 3 – True body cavity (coelom)

Slide 4 - Coelomates

Slide 5 – Fertilizing an egg

Slide 6 – Mitosis (interphase)

Slide 7 – Formation of the blastomere

Slide 8 - Blastula

Slide 9 - Morphogenesis

Slide 10 - Gastulation

Slide 11 – Blastopore and Archenteron

Slide 12 - Neurulation

Slide 13 – Radial and spiral cleavage

Slide 14 – Cleavage patterns

Slide 15 – Protostome and deuterostome body plan

Slide 16 – Protosomes - schizocoelom

The blastopore is the single opening of the archenteron and in protosomes, the blastopore forms the mouth.

The development of the mesoderm in protosomes are called schizocoelom which is defined as the developing mesoderm rises from the area near the blastophore where division takes place forming the mesoderm

Slide 17 – Deuterostomes - enterocoelom

In deuterosomes, the blastopore (single opening of the archenteron) forms the anus.

The development of the mesoderm is called an enterocoelom which is defined as the developing mesoderm rises from a pair of mesodermal pouch from the primitive gut (endoderm). This pouch enlarges until they meet and fuse

Slide 18 - Mollusca

Slide 19 – Molluscs – general structure

Slide 20 – Type of circulatory system comparison

Slide 21 – Molluscs - bivalves

Slide 22 – Molluscs - cephalopods

Slide 23 – Giant squid

Slide 24 – Molluscs - gastropods

Slide 25 – Annelids - Segmented worms

Slide 26 – Phylum Annelida – Class Polychaeta

Slide 27 – Phylum Annelida – class Oligochaeta

Slide 28 - Phylum Annelida – Class Hirudinea

Slide 29 – Leeches in medicine