The prostate gland is composed of _________ lobes.

The prostate gland is a single, large, chestnut-shaped gland that surrounds the first part of the urethra (prostatic urethra) just below the urinary bladder in males.

Anatomically, the prostate gland is divided into $5$ lobes:
1. Anterior lobe
2. Posterior lobe
3. Median lobe
4. Right lateral lobe
5. Left lateral lobe

Histologically, it consists of $30$ to $50$ tubuloalveolar glands that empty their secretions into the prostatic urethra. Since the options are given as ranges and the anatomical division is $5$ lobes, the correct range that includes $5$ is $5 - 10$.

Answer: 5 - 10