Erectile tissue is a type of spongy tissue found in certain parts of the body, primarily in the penis and clitoris. This tissue can fill with blood, leading to an increase in size and rigidity, which is essential for sexual arousal and function. In males, it is primarily located in the corpora cavernosa and corpus spongiosum. When stimulated, the erectile tissue relaxes and allows blood to flow in, causing an erection in males or swelling in females. This process is controlled by the nervous system and involves various chemical signals. Proper function of erectile tissue is crucial for sexual health and reproductive capability.