Final answer:
The term 'ejaculat' in 'ejaculation' refers to the process of expelling sperm and semen from the male body. It involves muscle contractions and the release of testosterone, with sperm constituting about 5 percent of the semen volume.
Step-by-step explanation:
Ejaculation is the process during which sperm and semen are expelled from the male body. During ejaculation, muscle contractions propel sperm from the epididymis and out through the urethra. An important hormone involved is testosterone, which is secreted by Leydig cells under the control of luteinizing hormone (LH) and is necessary for normal spermatogenesis and sexual development.
The term ejaculat, as a root, is associated with this process of expelling substances, particularly referring to semen in the context of the male reproductive system. Sperm, which make up only about 5 percent of semen by volume, are mixed with fluids from the seminal vesicles, prostate, and bulbourethral glands to form semen. A typical ejaculate contains 50-120 million sperm per milliliter of fluid.
The root ejaculat in the term ejaculation refers to the process in males where muscle contractions propel sperm from the epididymes and out through the urethra in semen.