In 2016, the Louvre was the world's most visited art museum, receiving 7.3 million visitors. The museum is housed in the Louvre Palace, originally built as a fortress in the late 12th to 13th century under Philip II. Remnants of the fortress are visible in the basement of the museum.
The primary sex organ of a male is the testis. The testis is the reproductive gland of males. It produces spermatozoa and the androgens.
1 Penis-Main organ involved in sexual intercourse. 2  This organ is composed of erectile tissue, connective tissue, and skin. 3  The urethra extends through the length of the penis, allowing urine and sperm to pass. 4  Testes-Male primary reproductive structures that produce male gametes (sperm) and sex hormones.econdary organs aid in the growth and maturation of gametes and developing offspring. 1  Female Reproductive System. 2  Labia majora-Larger lip-like external structures that cover and protect sexual structures. 3  Labia minora-Smaller lip-like external structures found inside the labia majora.