Question

hormones of the testes
the paired oval testes of the male are suspended in a sac, the scrotum, outside the pelvic cavity in addition to male sex cells, or sperm, the testes also produce male sex hormones, or ( 1. ) of which testosterone (tes-tostê-rôn) is the most important. at puberty, testosterone promotes the growth and maturation of the ( 2. ) system organs to prepare the young man for reproduction it also causes the males ( 3 ) sex characteristics (growth of facial hair, development of heavy bones and muscles, and lowering of the voice) to appear and stimulates the ( 4. ) sex drive.
in adults, testosterone is necessary for continuous production of sperm. in cases of hyposecretion, the man becomes sterile, such cases are usually treated by ( 5 ) injections. testosterone production is specifically stimulated by lh (luteinizing hormone) (chapter 16, which deals with the reproductive system, contains more information on the structure and exocrine function of the testes ) table 9 1 (pp 328-329) summarizes the major endocrine glands and some of their hormones
1 androgens 2 reproductive 3 secondary 4 male 5 testosterone
1 male 2 testosterone 3 androgens 4 reproductive 5 secondary
1 secondary 2 male 3 testosterone 4 androgens 5 reproductive
1 testosterone 2 androgens 3 reproductive 4 secondary 5 male
1 reproductive 2 secondary 3 male 4 testosterone 5 androgens

Explanation:

• 1. Androgens: Male sex hormones are called androgens, with testosterone being the main one.
• 2. Reproductive: Testosterone at puberty promotes growth of reproductive system organs.
• 3. Secondary: Facial hair growth, bone/muscle development, and voice - lowering are secondary sex characteristics.
• 4. Male: Testosterone stimulates male sex drive.
• 5. Testosterone: Hyposecretion (low production) is treated with testosterone injections.

Answer:

1 androgens 2 reproductive 3 secondary 4 male 5 testosterone