Non-seminoma can grow more quickly and can be less responsive to those treatments. Seminoma can grow slowly and respond very well to radiation and chemotherapy. There are two types of germ cell cancers (GCTs). More than 90 percent of testicular cancers begin in the germ cells, which produce sperm. Testicular cancer happens when cells in the testicle grow to form a tumor. The size of both testicles should be about the same, though one may be larger than the other. The firmness should be the same throughout. Healthy testicles have a firm, slightly spongy feel. Testosterone controls the sex drive in men and starts the growth of muscle, bone and body hair. The testicles also make male hormones like testosterone. From there, sperm moves into the vas deferens (a “tube” behind the testicles) and out the urethra when ejaculated. The testicles are two small egg-shaped glands, held in a sac below the penis (the scrotum). Carry sperm into the female reproductive tract.Make and move sperm for reproduction, and fluid to protect it (semen).Make and release male sex hormones for growth of muscle, bone, and body hair.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |