Principles of Animal Science Lecture Review

These flashcards cover key concepts and facts related to male reproductive anatomy, the estrous cycle, and assisted reproductive technologies in animal science.

What tissues make up the testes and their functions?

The testes are made up of parenchyma and mediastinum tissue; the parenchyma is the site of spermatogenesis and houses Sertoli cells, while the mediastinum forms a central connective tissue core and houses the tubules that sperm travel through.

What muscle contracts to hold the testes closer to the body?

The cremaster muscle contracts to hold the testes closer to the body.

What are the accessory sex glands?

The accessory sex glands include the ampulla, vesicular glands, prostate, and bulbourethral gland.

Which hormone is produced by the corpus luteum in the luteal phase?

The corpus luteum produces progesterone during the luteal phase.

What energy source do sperm use in seminal plasma?

Sperm use fructose as a source of energy that is present in seminal plasma.

What does estrous describe?

Estrous describes the period of sexual receptivity or standing heat in the female.

What is one benefit of estrus synchronization?

Synchronizing calving & breeding to reduce labor, costs, & use resources efficiently.

Which hormone causes the cervix to relax for parturition?

Relaxin is the hormone responsible for causing the cervix to relax and dilate to allow for parturition.

What hormone is required for superovulation?

FSH (Follicle Stimulating Hormone) is required to cause superovulation.

What is AI in the context of reproduction?

AI (Artificial Insemination) is a method of breeding utilizing straws/doses of semen collected from males.