Prostate Cancer and Male Reproductive System

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Questions and Answers

What is the primary function of the ductus deferens in the spermatic cord?

To provide nerve supply to the cremaster muscle

To supply blood to the testis and epididymis

To regulate the temperature of the testes

To convey sperms from the epididymis to the ejaculatory duct (correct)

Which artery branch arises from the inferior epigastric artery to supply the spermatic cord?

Cremasteric artery (correct)

Inferior vesical artery

Artery of the ductus deferens

Testicular artery

What is the term for the network of veins that terminate as right or left testicular veins in the spermatic cord?

Scrotal septum

Epididymal plexus

Pampiniform venous plexus (correct)

Dartos fascia

Which nerve supplies the cremaster muscle in the spermatic cord?

Genital branch of the genitofemoral nerve Signup and view all the answers

What is the main component of the spermatic cord that conveys sperms from the epididymis to the ejaculatory duct?

Ductus deferens Signup and view all the answers

What is the function of the sympathetic nerve fibres in the spermatic cord?

To regulate the contraction of arteries and ductus deferens Signup and view all the answers

Which structure is biologically homologous to the scrotum?

Labia majora Signup and view all the answers

What is the average wall thickness of the scrotum?

8 mm Signup and view all the answers

Which structure suspends the testis in the scrotum?

Spermatic cord Signup and view all the answers

Where does the spermatic cord begin?

At the deep inguinal ring Signup and view all the answers

Which fascia is derived from the transversalis fascia?

Internal spermatic fascia Signup and view all the answers

The cremasteric fascia and muscle are derived from which muscle?

Internal oblique Signup and view all the answers

Which structure does the spermatic cord traverse?

Superficial inguinal ring Signup and view all the answers

Which covering is NOT part of the spermatic cord?

External spermatic fascia Signup and view all the answers

To which vessels is the deep inguinal ring lateral?

Inferior epigastric vessels Signup and view all the answers

Where does the spermatic cord end?

At the posterior border of the testis Signup and view all the answers

What is the main attribute of the scrotum necessary for the production of viable sperm?

Its relatively cool temperature Signup and view all the answers

Which fascia is continuous posteriorly with the Colles fascia?

Dartos fascia Signup and view all the answers

Which artery is NOT involved in the blood supply to the scrotum?

Superior mesenteric artery Signup and view all the answers

Where do the scrotal veins drain?

Superficial inguinal lymph nodes Signup and view all the answers

What nerve supplies the anterolateral surface of the scrotum?

Genitofemoral nerve Signup and view all the answers

What structure is responsible for suspending each testis in the hemiscrotum?

Spermatic cord Signup and view all the answers

What layer surrounds the testes except at the epididymis and the spermatic cord?

Visceral layer of tunica vaginalis Signup and view all the answers

What is found between the visceral and parietal layers of the tunica vaginalis?

A layer of fluid Signup and view all the answers

Study Notes

Prostate Cancer and Its Effects

Radical prostatectomy can lead to erectile function impairment due to damage to nerve bundles.
Prostate cancer is the most frequently diagnosed cancer in men.
Benign prostatic enlargement can be detected during a rectal examination.

Seminal Glands/Vesicles

Seminal vesicles are elongated structures located between the bladder and rectum, posterior and superior to the prostate.
These glands secrete an alkaline fluid containing fructose and a coagulating agent, contributing to semen composition.
The duct of the seminal gland merges with the ductus deferens to form the ejaculatory duct.
Blood supply comes from inferior vesical and middle rectal arteries; lymphatic drainage occurs via internal and external iliac nodes.
Innervation is primarily sympathetic.

Spermatic Cord

The spermatic cord suspends the testis in the scrotum, originating at the deep inguinal ring and extending through the inguinal canal.
It consists of the internal spermatic fascia and cremasteric fascia/muscle derived from the internal oblique muscle.
The scrotum regulates temperature, critical for viable sperm production, and has a midline scrotal raphe indicating its septum.
Blood supply includes anterior and posterior scrotal branches; lymphatic drainage is into superficial inguinal lymph nodes.
Innervation is provided by the genital branch of the genitofemoral nerve and the ilioinguinal nerve.

Testis

The testes are paired ovoid gonads situated in the hemiscrotum, typically with the left testis positioned lower than the right.
Each testis is surrounded by the visceral layer of the tunica vaginalis, with a parietal layer enclosing the entire testicular structure, including the epididymis.
A fluid layer between the visceral and parietal layers facilitates testicular motion.

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Description

This quiz covers the topics of prostate cancer, its effects on erectile function, and the male reproductive system, including the prostate gland and seminal vesicles.