Class notes
Animal Reproduction Lecture Notes
- Course
- ANSC 318 (ANSC318)
- Institution
- Louisiana Tech University
In class lecture notes of Animal Reproduction for corresponding exams. class code is ANSC 318 at Louisiana Tech University.
[Show more]
Seller
Follow
Content preview
Animal Reproduction Dr. GreenANSC 318
Lecture 1: Male Reproduction (12/5)
Testicles
●Development:
○Develop in the area of the kidney, intra-abdominal.
○Remain there until the animal reaches puberty.
○Exception: Horses have testicles already in the scrotum at birth.
●Movement to Scrotum :
○Necessary to produce sperm, as body temperature in the abdomen is too high.
○Hormones released during embryological development cause the Gubernaculum testis to pull the testicle down through:
■Vaginal process (an out pocket of the peritoneum)
■Inguinal ring
■Internal inguinal canal
■External inguinal canal
■Into the scrotum.
●Inguinal Canal Muscles :
○Internal abdominal oblique
○External abdominal oblique
○Transverse abdominis
●Anatomy Surrounding Testicles :
○Vaginal tunic (peritoneum surrounding testicles in the scrotum):
■Parietal
■Visceral
○Tunica albuginea: Skin layer covering the testicles.
○Dartos muscle: Regulates testicle temperature.
○Cremaster muscle: Raises and lowers the testicles.
○Spermatic cord components:
■Tunica vaginalis
■Cremaster muscle
■Veins
■Arteries
■Nerves
■Gubernaculum testis
■Vas deferens
●Cells and Structures :
○Sertoli cells: Provide nutrition for testicles.
○Leydig cells: Produce hormones for testicles.
○Seminiferous tubules: Where sperm is formed.
○Rete testis: Sperm moves here from seminiferous tubules.
○Epididymis: Storage and maturation of sperm.
○Vas deferens: Tube that attaches to the urethra.
○Ampulla: Funnel-like structure attaching to the urethra (in some animals).
●Accessory Organs :
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller kendallwilder073. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
53340 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now