41 Questions
What is the part of the epididymis where sperm cells undergo further modifications?
Body
What is the function of the principal cells in the epididymis?
To remove water and residual bodies
What is the muscle layer in the epididymis responsible for?
Peristalsis during ejaculation
Where does the ductus deferens begin?
At the inferior pole of the testis
What is the pathway of the ductus deferens?
It ascends posterior to the testis and medial to the epididymis
What is the function of the ductus deferens?
To transport sperm
Where do the ductus deferens and ducts of the seminal glands merge?
At the ejaculatory ducts
What is the name of the structure formed by the enlargement of the ductus deferens?
Ampulla of the ductus deferens
Where do primordial germ cells migrate to by the 3rd week?
Yolk sac close to the allantois
What happens if primordial germ cells fail to reach the genital ridges?
The gonads do not develop
At which week do the gonads acquire male and female morphological characteristics?
7th week
What do the epithelial cells of the genital ridges do after the arrival of primordial germ cells?
Proliferate and penetrate the underlying mesenchyme
What are the gonads known as before differentiation between male and female gonads?
Indifferent gonads
Where do primordial germ cells migrate to by the 5th week?
Primitive gonad
What forms after the proliferation of epithelial cells in the genital ridges?
Primitive sex cords
What is the term for the irregularly shaped cords that form in both sexes?
Primitive sex cords
What is a characteristic of the epithelial lining of the seminal glands?
Simple or pseudostratified columnar epithelial cells
What is the function of the elastic fibers in the lamina propria of the seminal glands?
To allow for the expansion of the gland during ejaculation
What is a key difference between the seminal vesicle and the fallopian tube?
The number of lumens present in the tubes
What is the approximate percentage of the seminal volume made up by the secretions of the prostate gland?
20%
What is the origin of the arterial supply to the prostate gland?
Internal iliac artery
What is the name of the venous plexus that drains the prostate gland?
Prostatic venous plexus
What type of muscle is present in the wall of the seminal glands?
Smooth muscle
What is the function of the smooth muscles in the seminal glands?
To facilitate the emptying of the gland during ejaculation
What is the approximate size of the prostate gland?
3cm long, 4cm wide, 2cm in the anteroposterior depth
What percentage of the prostate gland is fibromuscular?
⅓
What is the name of the structure that surrounds the prostatic urethra?
Fibrous prostatic sheath
Where do the prostatic ducts open directly into?
Prostatic sinuses
How many prostatic ducts are there approximately?
20-30
What is the function of the prostatic secretions?
To facilitate the passage of sperm through the urethra
What is the name of the structure that forms the fibrous prostatic sheath?
Visceral layer of the pelvic fascia
What is the anterior part of the fibrous capsule continuous with?
Puboprostatic ligaments
What is the common function of the penis?
Semen and urine outlet
What is the anatomical position of the penis?
Erect
What are the three cylindrical bodies of the penis composed of?
Erectile tissue
What is the outer covering of the cavernous bodies of the penis?
Tunica Albuginea
What is the function of the Buck Fascia?
It binds the erectile tissues together
What is the crura of the penis attached to?
Pubic arch
Where is the bulb of the penis anchored?
Perineal membrane
What muscle covers the crura of the penis?
Ischiocavernosus muscle
What is the location of the attached part of the penis?
Superficial perineal pouch
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