Female Avian Reproductive System

Lecture 27 CONT

What is unique about the ovaries in avians?

only one, left ovary

What is shown?

Ovary (grapes)

What does each ball represent?

follicles

What is the follicle made of?

yolk and outer wall

What is the order of the oviduct parts?

Infundibulu, magnum, isthmus, uterus, vagina

Where does fertilization of the ova occur?

oviduct, specifically infundibulum

#1? #1’ ?

1: Yolk 1’: Yolk Membrane

#3? #3’ ?

3: Chalaziferous layer 3’ : Chalaza

4 & 4’:

Albumen

5? 5’ ?

5: Shell membrane 5’ : air cell

6?

Shell

#7?

cuticle

What is shown?

Infundibulum

About how long does the ovum spend in the infundibulum?

15 minutes

In the infundibulum the first layer of the ___________ layer is deposited.

chalaziferous

What is shown?

Magnum

How long does the egg spend in the magnum?

3 hours

Which segment is the longest in the oviduct?

magnum

What is shown?

Isthmus

What is deposited in the isthmus?

the rest of the albumen and the shell membrane

How long does the egg spend in the isthmus?

1 hour

What is shown?

Uterus

What is the uterus also referred to as?

shell gland

Which part of the oviduct does the egg spend in the uterus?

near 24 hours

In the uterus, the majority of the ____ and the ______ are deposited.

shell, cuticle

What is shown?

Vagina

What is the function of the vagina?

pushes the egg out the cloaca and vent