Where are the Testes located? | the testes are located in the scrotum |
Define the scrotum | the scrotum is skin and superficial fascia that surrounds the testes |
What muscles are connected to the Testes? | - the Dartos muscle
- the Cremaster muscle |
Define the Dartos muscle and its function | The dartos muscle is a layer of smooth muscle and is responsible for the wrinkling of scrotal skin |
Define the Cremaster muscle | the Cremaster muscle are bands of skeletal muscle surround the testes
its function is to elevate the testes, allows sperm to move up the vast deferens |
What encloses the testes | The tunica vaginalis encloses the testes |
Define Tunica Vaginalis | serous sac |
What divides the testes into lobules? | The tunica albuginea is a fibrous capsule that divides the testis into lobules |
Where do the sperms get produced? | Sperm is produced in the lobules found within the testes |
Where does the sperm travel | the sperm travels through tubes or the Epididymis which is a comma shaped structure on posterior testes |
How are the seminiferous tubules seperated? | The seminiferous tubules are separated by areolar connective tissue |
Define the function of spermatogenic cells | spermatogenic cells are sperm forming cells
begin at puberty |
What is the function of columnar sustentocytes? | they are support cells |
What do seminiferous tubules produce? | Seminiferous tubules in the male testes continually produce new spermatogonia |
What is spermatogonia | diploid germ cells |
What occurs to the spermatogonia during meiosis? | produce sperm (haploid male gametes) |
What is the sequence of sperm formation? | spermatogonium --> primary spermatocyte --> secondary spermatocyte --> spermatid --> immature sperm |
What surrounds the seminiferous tubules? | myoid cells |
Function of myoid cells | contract rhythmically |
What is the function of intersitial endocrine cells? | secrete testosterone |
What tissue make up the epididymis | pseudostratified columnar epithelium
- contains cilia |
How many days does it take for the sperm to pass all the tubules | 20 |
What is a spermatozoon | a mature sperm |
Define the structure of a spermatozoon | head: contains DNA and an enzyme cap
midpiece: mitochondria
flagellum: allows movement |
What is the acrosome? | head portion of the mature sperm |
What can be found inside the acrosome? | nutritional lips and carbohydrates |
Define the function of the urethra | the urethra carries sperm form the ejaculatory ducts to the "outside" |
what are the 3 parts to the male urethra? | - prostatic urethra
- intermediate part of urethra
- spongy urethra |
Where do the seminal glands lie | lie on the posterior surface of the urinary bladder |
Function of the seminal glands | secrete about 60% of the volume of semen |
what does fluid found in semen contain | - fructose (to nourish sperm)
- substances to enhance sperm motility
- prostaglandins
- substances that suppress immune response against semen |
Function of the prostrate gland | encircles the prostatic urethra
secretes about 25-30% of the seminal fluid
act as a nutritional bio concentrator |
What does the prostrate gland contain? | - 20-30 compound tubuloalveolar glands
- substances the enhance sperm motility
- enzymes that clot and then liquefy semen |
Name the Structure | Ureter |
Name the Structure | Urinary bladder |
Name the Structure | Testis |
Name the Structure | Scrotum |
Name the Structure | Ductus Vas Deferens |
Name the Structure | Seminal Vesicle |
Name the Structure | Ejaculatory Duct |
What is the difference between a male and female urethra? | the female urethra is shorter than a male's urethra |
Name the Structure | Epididymis |
Name the Structure | Prostatic urethra |
Name the Structure | Spongy Urethra |
Name the Structure | Bulbo-urethral gland |
Name the Structure | Ductus Vas Deferens |
Name the Structure | Efferent Ductule |
Name the Structure | Body of Epididymis |
Name the Structure | Duct of Epididymis |
Name the Structure | Tail of Epididymis |
Name the Structure | Spermatic Cord |
Name the Structure | Testis |
Name the Structure | Straight Tubule |
Name the Structure | Tunica Albuginea |
Name the Structure | Cavity of Tunica Vaginalis |
Name the Structure | Tunica Vaginalis |
Name the Structure | Myoid Cells |
Name the Structure | Areolar Connective Tissue |
Name the Structure | Seminiferous Tubule |
What is The epithelium found in the Testis is composed of? | - spermatogenic cells (sperm forming cells)
- columnar sustentocytes (support cells) |
Name the Structure | Urethra |
Name the Structure | Epididymis |
Name the Structure | Scrotum |
Name the Structure | Testis |
Name the Structure | Vas Deferens |
Name the Structure | Bladder |
Name the Structure | Ureter |
Name the Structure | Seminal Vesicle |
Name the Structure | Prostate |
Name the Structure | Ejaculatory Duct |
Name the Structure | Septa |
Name the structure | Seminiferous tubules |
Name the structure | Vas deferens |
Name the structure | Epididymis |
Name the structure | Loose connective tissue outside of the duct |
Name the structure | Duct of Epididymis |
Name structure | Pseudostratfied columnar epithelium |
Name the structure | Smooth muscle around duct |
Name the structure | Sperm inside the lumen |
Name the structure | Lumen |
Name the structure | Mucosa (pseudostratified columnar epithlium) |
Name the structure | Lamina Propria |
Name the structure | Adventitia |
Name the structure | Acrosome |
Name the structure | Mitochondria |
Name the structure | Flagellum |
Name the structure | Mucosal glands |
Name the structure | Urethra |