Pronunciation: [mˈʌskjʊləs ɪd͡ʒˈakjʊlˌe͡ɪtə sˈɛmɪnˌiz] (IPA) 
Correct spelling for the English word "musculus ejaculator seminis" is [mˈʌskjʊləs ɪd͡ʒˈakjʊlˌe͡ɪtə sˈɛmɪnˌiz], [mˈʌskjʊləs ɪdʒˈakjʊlˌeɪtə sˈɛmɪnˌiz], [m_ˈʌ_s_k_j_ʊ_l_ə_s ɪ_dʒ_ˈa_k_j_ʊ_l_ˌeɪ_t_ə s_ˈɛ_m_ɪ_n_ˌi_z] (IPA phonetic alphabet).
Musculus ejaculator seminis, commonly known as the ejaculatory muscle, is a small striated muscle located within the male reproductive system that plays a crucial role in the process of ejaculation. This muscle is found in the pelvic region and is responsible for aiding in the expulsion of semen from the penis during sexual climax.
The musculus ejaculator seminis is situated around the base of the urethra, within the deep perineal pouch in males. It surrounds the ductus deferens - the tube connecting the epididymis to the urethra - and encloses the prostate gland. This muscle is composed of smooth muscle fibers that are arranged in a circular fashion.
During sexual arousal and stimulation, the musculus ejaculator seminis contracts rhythmically and forcefully, producing powerful waves of contractions that propel the semen through the ejaculatory ducts and out of the urethra. These contractions are essential for successful ejaculation and enable the release of sperm and seminal fluid into the female reproductive tract during sexual intercourse.
The function of the musculus ejaculator seminis is regulated by the autonomic nervous system, specifically the sympathetic division. Nerve impulses from the sympathetic nervous system stimulate the muscle to contract, initiating the ejaculation process.
Overall, the musculus ejaculator seminis plays a vital role in male reproductive function by facilitating the ejaculation of semen, and its proper function is critical for fertility and sexual satisfaction.
M. Bulbocavernosus.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
