Identify the 'master gland' and list hormones II, III, V, and VI. Describe consequences of testosterone deficiency and other functions of progesterone.

a) The gland described as the master gland is the pituitary gland.

b) The hormones are:

• II: Testosterone
• III: Follicle-Stimulating Hormone (FSH)
• V: Luteinizing Hormone (LH)
• VI: Progesterone

c) Consequences of deficiency of hormone II (Testosterone) in man include:

• Reduced spermatogenesis, leading to infertility.
• Underdevelopment of male secondary sexual characteristics, such as reduced muscle mass, less body hair, and a higher-pitched voice.

d) Other functions of hormone VI (Progesterone) include:

• Maintaining pregnancy by preventing uterine contractions.
• Promoting the development of mammary glands for milk production.