Hypogonadism Testing Algorithm. Hypogonadism is one of the most common endocrine disorders in men and is characterized by low serum testosterone levels and/or low sperm counts with clinical signs and symptoms of androgen loss. Prevalence ~4-5 million men in U.S. 20% of men â¥60 years.
Diencephalon: The diencephalon, along with the telencephalon (cerebrum) comprise the two major divisions of prosencephalon (forebrain). Main structures of the diencephalon include the hypothalamus, thalamus, epithalamus (including the pineal gland), and subthalamus.The diencephalon relays sensory information between brain regions and controls many autonomic functions of the peripheral nervous system.unction: The diencephalon is involved in several functions of the body including: 1  Directing Sense Impulses Throughout the Body. 2  Autonomic Function Control. 3  Endocrine Function Control. 4  Motor Function Control. 5  Homeostasis. 6  Hearing, Vision, Smell, and Taste. 7  Touch Perception.
The diencephalon, or interbrain, is located between the cerebral hemispheres and the brain stem. One can see it by cutting into the central section of the brain. The diencephalon includes the thalamus and the hypothalamus. (Fig. 6-10.) The two parts of the thalamus form the lateral walls of the third ventricle (see Figs.