Podcast
Questions and Answers
What is the primary function of the ductus deferens in the spermatic cord?
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?
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?
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?
Which nerve supplies the cremaster muscle in the spermatic cord?
What is the main component of the spermatic cord that conveys sperms from the epididymis to the ejaculatory duct?
What is the main component of the spermatic cord that conveys sperms from the epididymis to the ejaculatory duct?
What is the function of the sympathetic nerve fibres in the spermatic cord?
What is the function of the sympathetic nerve fibres in the spermatic cord?
Which structure is biologically homologous to the scrotum?
Which structure is biologically homologous to the scrotum?
What is the average wall thickness of the scrotum?
What is the average wall thickness of the scrotum?
Which structure suspends the testis in the scrotum?
Which structure suspends the testis in the scrotum?
Where does the spermatic cord begin?
Where does the spermatic cord begin?
Which fascia is derived from the transversalis fascia?
Which fascia is derived from the transversalis fascia?
The cremasteric fascia and muscle are derived from which muscle?
The cremasteric fascia and muscle are derived from which muscle?
Which structure does the spermatic cord traverse?
Which structure does the spermatic cord traverse?
Which covering is NOT part of the spermatic cord?
Which covering is NOT part of the spermatic cord?
To which vessels is the deep inguinal ring lateral?
To which vessels is the deep inguinal ring lateral?
Where does the spermatic cord end?
Where does the spermatic cord end?
What is the main attribute of the scrotum necessary for the production of viable sperm?
What is the main attribute of the scrotum necessary for the production of viable sperm?
Which fascia is continuous posteriorly with the Colles fascia?
Which fascia is continuous posteriorly with the Colles fascia?
Which artery is NOT involved in the blood supply to the scrotum?
Which artery is NOT involved in the blood supply to the scrotum?
Where do the scrotal veins drain?
Where do the scrotal veins drain?
What nerve supplies the anterolateral surface of the scrotum?
What nerve supplies the anterolateral surface of the scrotum?
What structure is responsible for suspending each testis in the hemiscrotum?
What structure is responsible for suspending each testis in the hemiscrotum?
What layer surrounds the testes except at the epididymis and the spermatic cord?
What layer surrounds the testes except at the epididymis and the spermatic cord?
What is found between the visceral and parietal layers of the tunica vaginalis?
What is found between the visceral and parietal layers of the tunica vaginalis?
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.
