Male Genitalia and Rectum Introduction

Male Reproductive System

• The penis plays a crucial role in urination and sexual reproduction.

Urethral Meatus

• The urethral meatus is located at the tip of the penis.

Foreskin/Prepuce

• The foreskin or prepuce is a fold of skin that covers the glans penis and helps to protect it.

Scrotum

• The scrotum is a sac of skin and muscle that contains the testes, located below the penis.

Cremaster Muscle

• The cremaster muscle is responsible for moving the testes upwards towards the body for warmth and downwards away from the body for cooling.

Testes

• The testes produce spermatozoa and testosterone, essential for male reproduction.

Tunica Vaginalis

• The tunica vaginalis is a serous membrane that surrounds the testes, providing protection and reducing friction.

Spermatic Cord

• The spermatic cord is a bundle of structures that includes the vas deferens, arteries, and veins, and it provides a pathway for the vas deferens to travel through.

Vas Deferens

• The vas deferens travels through the spermatic cord and into the prostate gland, where it empties into the urethra.

Prostate Gland

• The ejaculatory duct, which is formed by the union of the vas deferens and the seminal vesicle, empties into the urethra within the prostate gland.

Inguinal Area

• The inguinal area is located in the lower abdomen, where the spermatic cord passes through the inguinal canal.

Inguinal Canal

• The inguinal canal is a passageway that runs diagonally between the anterior superior iliac spine and symphysis pubis.

Spermatic Cord Contents

• The spermatic cord contains the vas deferens, arteries, veins, and nerves.

Testes Suspension

• The testes are suspended in the scrotum by the spermatic cord.

Epididymis

• The epididymis is a tube-like structure that stores and matures spermatozoa, allowing them to develop mobility and fertility.

Semen Formation

• The seminal vesicle, prostate gland, and urethra mix with sperm to form semen.