22 Questions
What is the primary function of Ø extenders in sperm preservation?
To stabilize the sperm plasmalemma and conserve motility
What is the consequence of using liquid semen without Ø extenders?
Sperm numbers per insemination decrease
What is the role of energy substrates in Ø extenders?
To provide energy for sperm motility
What is the benefit of using Ø extenders in semen preservation?
Improved sperm fertility over time
What is the primary component of Ø extenders responsible for sperm plasmalemma protection?
Egg yolk
What is the effect of pH on sperm motility in the absence of Ø extenders?
Sperm motility decreases
What is the purpose of Ø extenders in preventing cryogenic injury?
To prevent ice crystal formation
What is the role of Ø extenders in semen extender formulation?
To stabilize the sperm plasmalemma
What is the primary function of semen extenders in reducing cryogenic injury?
Preventing acrosome damage during freezing
Which component of semen extenders is essential for maintaining sperm cell membrane integrity?
Egg yolk lipids
What is the primary mechanism by which semen extenders prevent acrosome preservation during freezing?
By reducing water influx into the sperm cell
What is the main advantage of using egg yolk-based semen extenders over other formulations?
Better protection against cryogenic injury
What is the primary function of glycerol in semen extenders?
Reducing the freezing point of the semen
What is the main consideration in formulating semen extenders for optimal sperm preservation?
Maintaining a consistent osmotic pressure
What is considered the ultimate test of sperm quality?
Fertility
What is the primary function of semen extenders?
To resolve problems in the storage of semen for shipment and use in the field
Which of the following is a key aspect of sperm cell membrane protection?
Cryogenic injury prevention
What is the role of egg yolk in semen extenders?
To provide nutrients to the sperm
What is the primary goal of acrosome preservation?
To preserve the sperm's ability to fertilize an egg
What is the hypo-osmotic swelling test used to evaluate?
Sperm membrane integrity
What is a key aspect of semen extender formulation?
Phosphate buffer concentration
Which of the following is a critical aspect of cryogenic injury prevention?
Gradual cooling of sperm
Study Notes
Semen Extenders
- Protect sperm, conserve motility, and fertility over time by stabilizing the plasmalemma, providing energy substrates, and preventing harmful effects.
- Allow for reduced sperm numbers per insemination, from 100 million to 4 million, while maintaining fertility.
Sperm Quality
- Fertility is the ultimate test of sperm quality.
- Quality is determined by factors such as sperm motility, morphology, and the hypo-osmotic swelling test.
Pre-AI Techniques and Development
- Semen extenders resolve the problem of storing semen long enough for shipment and use in the field.
- Techniques are used to preserve semen quality and fertility during storage and transport.
This quiz covers pre-AI techniques and development, with a focus on semen extenders. It assesses understanding of semen extenders and their applications.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
