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.
Chapter 10 - Thalamic Organization. The diencephalon consists of the hypothalamus, subthalamus, dorsal thalamus and epithalmus. These structures basically surround the third ventricle, and comprise the lateral wall and floor of this ventricle. The hypothalamus has been discussed with the limbic system (section IXa).