AnimalDairy Science 434 Lec 3 Male Reproductive Tract
- Slides: 27
Animal/Dairy Science 434 Lec 3: Male Reproductive Tract Anatomy
Male Reproductive System LEARNING OBJECTIVES: To learn the nomenclature and structures of the male reproductive system. To understand the functions of these structures and how they are interrelated to prove the complete reproductive process in the male.
Testis Factory • 1 -25 X 109 sperm/day • “Plant” must be air conditioned Penis Delivery System • Erection • Protrusion • Ejaculation Epididymis Finishing School • Fluid Absorption • 8 -25 X 109 sperm – membrane changes – nuclear & flagellar stabilization – motility, fertility – cytoplasmic droplet translocation Tail of Epididymis Warehouse and Delivery Accessory Sex Glands Alterations & Packaging • Metabolic substrates • Surface coatings • Transport for sperm • Storage 10 -50 X 109 sperm • Sperm for 5 -10 ejaculates • Smooth muscle contractions upon sexual stimulation
Bull Reproductive Tract
Reproductive Organs of the Bull Testis
Bull Testis Tunica Vaginalis • parietal • visceral Tunica Albuginea
Bull Tract • • • Thermosensor Radiator Protective sac Testis Scrotum
Scrotal Cross Section testicular parenchyma mediastinum
Testis Testicular Parenchyma Mediastinum
Structure of the Testis Seminiferous Tubule Tunica Albuginea Rete Testis (within the mediastinum)
Mediastinum Rete Testis Seminiferous Tubule The Testis
Structure of the Testis Caput Epididymis Spermatic Cord Vas Deferens • Vasectomy Vas Efferentia 6 -12 tubules Seminiferous Tubule Tunica Albuginea Corpus Epididymis Rete Testis (within the mediastinum) Cauda Epididymis
Spermatic Chord • Vascular, lymphatic and nerves Pampiniform Plexus • Heat exchanger • Houses cremaster muscle Testicular Artery Pampiniform Plexus • Counter Current Exchange Ø 39°C - 34°C Ø 70 ng T/ml - 4. 8 ng T/ml
Testis Arterial Pulse
Spermatic Chord Vas Deferens Cremaster Muscle Pampiniform Plexus Parietal Tunica Vaginalis
Bull Tract Testis Scrotum Tunica Dartos
Contraction of the Tunica Dartos Testis Tunica Dartos • Smooth muscle • Androgen dependent (Testosterone)
Bull Tract Pelvic Genitalia Spermatic Chord Pampiniform Plexus Testis Scrotum Gubernaculum Epididymus Tunica Dartos
Pelvic Genitalia of the Bull Pelvic Urethra Muscle
Bulb of the Penis
Reproductive Organs of the Bull Rectum Prostate Cowpers Gland Seminal Vesicles Ampulla Bladder Retractor Penis Muscle Vas Deferens Sigmoid Flexure Glans Penis Caput Epididymis Scrotum Testis Gubernaculum Cauda Epididymis
Cross Section of Bull Penis
Penis Cross Section
Arterial Supply
Glans Penis
Glans Penis
- Extrapyramidal tract function
- Anterior spinothalamic tract
- Nursing management of reproductive tract infection
- I ii iii
- Function of cervix
- Reproductive system function
- Male and female reproductive system
- Exercise 42 review male reproductive system
- Oogenesis diagram
- Female anatomy
- What is reproductive system
- The reproductive system chapter 16
- Reproductive physiology
- Male reproductive system of a plant
- Art-labeling activity: the male reproductive system, part 1
- Male reproductive system information
- Where is the sperm located
- Functions of testis
- Male prostate
- Examples of asexual reproduction
- Disease traductor
- Is croaker a cartilaginous fish
- Uterus is the part of which system in pila
- Bladder fetal pig
- Male plant reproductive system
- Figure 28-2 the female reproductive system
- Base of prostate gland
- Lesson 20.2 the male reproductive system