Videos that have been shown in Biology 441 lectures

January 7

early cleavages in a fertilized mouse egg

link to the video of sea urchin cleavage, by Rachel Fink of Mt. Holyoke College

January 9

gastrulation in a sea urchin egg

January 12

early fish egg

animation of teleost gastrulation (epiboly)

January 16

animation of cleavage in a frog egg

early cleavage in a frog egg

gastrulation in a frog egg

neurulation in a frog egg

January 21

serial sections from a chicken embryo, arranged to simulate progression of neurulation from anterior to posterior

January 23

Fundulus oocyte

mammal egg and polar body

mammal egg being fertilized

mammal blastocyst

chick primitive streak

February 9

human leucocyte moving among red blood cells

Labyrinthula

active movement and rearrangement of sponge cells

development of blood vessels

February 11

a shelled amoeba

Amoeba proteus, multiple pseudopods and phagocytosis

mesenchymal cells moving on an adhesion gradient

cells on a grid with islands of palladium metal

the Turing pascal program shown in class

cell growing on silicone rubber and creating wrinkles

rearrangement of collagen demonstrated using birefringence

clumping of fibroblasts growing on a collagen gel

formation of Liesegang rings

back to syllabus