The Pineal Body

From WikiMD free medical encyclopedia
Jump to: navigation, search

Anatomy > Gray's Anatomy of the Human Body > XI. Splanchnology > 4e. The Pineal Body

Henry Gray (1821–1865). Anatomy of the Human Body. 1918. 4e. The Pineal Body The pineal body (epiphysis) is a small reddish-gray body, about 8 mm. in length which lies in the depression between the superior colliculi. It is attached to the roof of the third ventricle near its junction with the mid-brain. It develops as an outgrowth from the third ventricle of the brain. In early life it has a glandular structure which reaches its greatest development at about the seventh year. Later, especially after puberty, the glandular tissue gradually disappears and is replaced by connective tissue. Structure—The pineal body is destitute of nervous substance, and consists of follicles lined by epithelium and enveloped by connective tissue. These follicles contain a variable quantity of gritty material, composed of phosphate and carbonate of calcium, phosphate of magnesium and ammonia, and a little animal matter. It contains a substance which if injected intravenously causes fall of blood-pressure. It seems probable that the gland furnishes an internal secretion in children that inhibits the development of the reproductive glands since the invasion of the gland in children, by pathological growths which practically destroy the glandular tissue, results in accelerated development of the sexual organs, increased growth of the skeleton and precocious mentality.

Gray's Anatomy Contents | Gray's Anatomy Subject Index

About Classic Gray's Anatomy

External Links

WikiMD Sponsors - W8MD Weight Loss, Sleep and MedSpa Centers

Pronounced weightMD, our state of the art W8MD weight loss, sleep, holistic IV nutrition and aesthetic medicine programs can help you not only to lose weight, and sleep better but also look your best! Since its inception in 2011, W8MD’s insurance physician weight loss program has successfully helped thousands of patients.

W8MD Weight Loss

W8MD’s Physician weight loss is unique in many ways with a comprehensive multidisciplinary approach to weight loss. Weight Loss Success Stories....

W8MD Sleep Services

Sleep medicine program uses state of the art technology to diagnose and treat over 80 different sleep disorders. W8MD Sleep Services…

W8MD Medical Aesthetic Services

Medical aesthetic program offers a wide variety of advanced laser skin treatments including oxygen super facials, photofacials and Affordable Botox. W8MD Aesthetic Services…

IM and IV nutrition therapy includes booster shots for B12, vitamin B complex, Vitamin C, Detox treatments and IV nutrition therapy. W8MD IV Nutrition…

W8MD weight loss | Philadelphia medical weight loss | NYC medical weight loss | NJ medical weight loss

W8MD Weight Loss, Sleep & Medical Aesthetics

Intro to W8MD Weight Loss, Sleep & Medical Aesthetics


Disclaimer: The entire contents of WIKIMD.ORG are for informational purposes only and do not render medical advice or professional services. If you have a medical emergency, you should CALL 911 immediately! Given the nature of the wiki, the information provided may not be accurate and or incorrect. Use the information on this wiki at your own risk! See full Disclaimers.WikiMD is supported by W8MD Weight loss, Poly-Tech Sleep & Medical Aesthetic Centers of America.