Fert07 - Sperm Transport and Fertilization For today, read...

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon
Sperm Transport and Fertilization For today, read Chapter 12, Senger Gamete Transport Development of Sperm Fertilizing Ability Sperm-Egg Binding and Fusion Egg Activation and Block to Polyspermy Preimplantation Development
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Why Study Fertilization? Improve fertility of humans and animals Develop better diagnostic tests to identify the cause of infertility and treat effectively Control fertility Develop new contraceptives with fewer side effects A unique and interesting cell-cell interaction
Background image of page 2
Events Following Semen Deposition
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Phagocytes
Background image of page 4
Female Tract Barriers and Reservoirs for Sperm Fluid Cilia Transport and Storage of Gametes Ampulla
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Sperm and Oocyte Transport Necessary for internal fertilization (mammals, birds) Internal Fertilization <50 sperm at site of fertilization at any one time Sperm bind to walls in storage sites-release provides constant supply to site of fertilization Sperm moved by fluid flow and smooth muscle contractions (motility NOT sufficient)
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Types of Sperm Transport 1. Rapid transport done in minutes but sperm in oviduct are not fertile 2. Sustained transport provides steady supply to ampulla from sperm reservoirs (cervix, isthmus) How oocyte brought to sperm (opposite direction?)- Cilia in ampulla
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Development of Sperm Fertilizing Ability Ejaculated sperm are not immediately able to fertilize an egg Capacitation-Final maturation in female tract required to give sperm ability to fertilize oocytes Require some residence time in the female reprod tract prior to fertilization Completed in oviduct Can also be done in vitro
Background image of page 10
Image of page 11
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/09/2008 for the course ANSC 331 taught by Professor Kestler during the Spring '08 term at University of Illinois at Urbana–Champaign.

Page1 / 34

Fert07 - Sperm Transport and Fertilization For today, read...

This preview shows document pages 1 - 11. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online