EGG ANATOMY Flashcards
(8 cards)
protective hard shell made almost entirely out of calcium carbonate and minerals. consists of multiple layers that are built on top of a fibrous shell membrane
EGGSHELL
non-calcified layer that sits around the shell to protect it. also called as the “cuticle” since the calcium crystallizes as nanosphere cuticles. it is the protection against infections, harmful radiation, and water
BLOOM
contains the albumen
SHELL MEMBRANES
a.k.a egg white. 90% water mixed with proteins and some minerals and vitamins.
ALBUMEN
structure inside the egg that keeps the yolk in place. consists of two spiral bands of protein fibers
CHALAZA
expanded upper end of flask shaped mass of white yolk in a birds egg
NUCLEUS OF PANDER
resides in the vitelline membrane that separates the yolk from albumen. it is a protein barrier that prevents microbial infection
EGG YOLK
a.k.a blastoderm, a tiny spot on the yolk’s surface. earliest stage of the embryo of a fertile egg.
GERMINAL DISK