Topic: Applied anatomy of diaphragm, perineum and inguinal region
Question: Write a detailed note on the anatomy of prostate. Add a note on the different lobes and the blood supply.
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The prostate is a small gland that’s part of the male reproductive system. It’s located just below the bladder and in front of the rectum, and it surrounds the urethra (the tube that carries urine and semen out of the body). The prostate is about the size and shape of a walnut in younger men, but it can enlarge as men age.
The prostate is made up of several different types of tissue, including glandular tissue, fibromuscular tissue, and connective tissue. The glandular tissue produces a fluid that’s a component of semen, while the fibromuscular tissue helps to propel semen out of the body during ejaculation.
The prostate can be divided into several different lobes, including:
- Anterior lobe: This is the smallest lobe of the prostate, and it’s located at the front of the gland. It doesn’t contain any glandular tissue.
- Posterior lobe: This is the largest lobe of the prostate, and it’s located at the back of the gland. It contains most of the glandular tissue.
- Median lobe: This lobe is located between the anterior and posterior lobes, and it extends upwards towards the bladder.
- Lateral lobes: These lobes are located on either side of the prostate, and they contain a mixture of glandular and fibromuscular tissue.
The blood supply to the prostate comes from several different arteries, including:
- Prostatic artery: This artery is a branch of the internal iliac artery, and it provides most of the blood supply to the prostate.
- Inferior vesical artery: This artery is also a branch of the internal iliac artery, and it provides blood to the posterior and lateral lobes of the prostate.
- Middle rectal artery: This artery is a branch of the internal iliac artery, and it provides blood to the posterior surface of the prostate.
The venous drainage of the prostate is primarily through the prostatic venous plexus, which drains into the internal iliac veins.
