Lecture 15 and 16 Flashcards
What is a gametes
A haploid sex cells
What are the two functions of the urethra within males?
Cumming and peeing
What is the name of the dense white tissue that surrounds the testis?
Tunica Alberginea
What it the name of the structure that invaginated the testis dividing it into two different sub-sections?
septae
What is the function of Leydig cells?
Produce testosterone and other substances
Describe the pathway of sperm leaving the body:
- Semiferous tubules (convuluted in structure) 2. Open into straight section 3. Drains towards a middle like structure (rete) 4. Exit the testis via the efferent tubules
What is the function of sertoli cells?
Support the development of the germ cells (produce a blood sperm barrier) so that the body will not destroy itself
What is the name of the nerve that supplies the scrotum?
The pudendal nerve
What is the main muscle that can act to withdraw the testis?
The cremaster muscle
Where is the tunica dartos muscle and what it the function of it?
The tunica dartos is within the muscle itself and it can act to change the surface area of the skin
The scrotum is enclosed in a double layer of what kind of tissue?
Serous tissue
What is the name of the cord like jelly material that assists in the descent-ion of the testicle from the testis to the scrotum?
Called the gubernaculum
What is the mesorchium?
Serous tissue associated with the ductus deferens
What is the name of the white outer fibrous tunic that surrounds the testis?
tunica alberginea
What is produced by leydig cells?
testosterone
Name the following structure shown below
- spermatic cord/pampiniform plexus
- caput/ head of the epididymus
- tunica vaginalis
- semiferous tubules
- nothing
- vas deferens
- efferent ductules
- single epidymal duct
- rete testis
- mediastinum
- corpus/body of the epididymus
- straigtht tubules
- cauda/tail of the epidymus
Name the following structures:
- cauda epidymus
- caput epidymus
- rete testis
- pampinform plexus
- corpus epididymus
- mediastinum testis
What is the name of the divison between the two testis?
the scotal septum
Describe the layers of the scrotum going from the outside to the inside:
The outer most layer is called the tunica dartos, inner layer is the scrotal fascia then the cremaster muscle and then the tunica vaginalis
Name the following structures of the diagram below:
- spermatic cord
- vas deferens
- scrotal skin with dartos muscle
- visceral layer of tunica vaginalis
- parietal layer of the tunica vaginalis
- scrotal fascia
- scrotal septum
- cauda/ tail of the epidymus
- visceral layer of tunica vaginal on testis
- cremaster muscle
Where does the testicular artery branch of from?
from the aorta between the cranial and the mesenteric arteries
What is the name of the net of veins that surrounds the arteries and what it the function of it?
pampiniform plexus, helps to cool the arteries via counter-current heat exchange
What is the main blood supply for the accesory reproductive glands?
The main blood supply for the accesory reproductive glands is via the internal pudendal artery
Name the following structures shown below:
- Seminal vesicle
- ureter
- prostatic urethra
- vas deferens
- memebranous urethra
- urogenital diaphragm
- corpus cavernosum
- corpus spongiosum
- spongy urethra
- glans penis
- prepuce
- external urethral orrifice
- testis
- epidymus
- bulbourethral gland
- prostate
- ejaculatorry duct
- Ampulla of the vas deferens
Name the following structures shown in the image below:
- Bladder
- ampullary duct of the vas deferens
- seminal vesicle
- prostate
- bulbourethral gland
- suspensory ligament
- crus of the penis
- rectrator penis muscle .
- cremaster muscle
- testis
- head of epidymus
- corona of glans penis
- prepuce
- spermatic cord
Differentiate between the terms musculocavernous and fibrolastic:
A musculocavernous penis requires greater engorgement and therefore time. Whereas a fibroelastic penis undergoes rapid erection and deetumescene aided by retractor muscles.
Where is the corona glandis in the penis?
circumfrence at the base of the glands penis
What is an os penis?
An os penis is a bony like component of the penis
What is the bulbus glandis and what is the function of it?
An erectile tissue structure within the penis of canines. When the penis enters the vagina this strucutre will swell up preventing the penis from being able to be removed.
What is the urethral groove?
a temporary indentation on the underside of the male penis that is present during developement
