Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Pineal gland

pineal gland

Related Books

Free with a 30 day trial from Scribd

See all
  • Login to see the comments

Pineal gland

  1. 1. PINEAL GLAND Small body attached to the roof of the 3rd ventricle of the brain Containing nerves that connect to the hypothalamus 10mm long, reddish and surrounded by capsule Becomes atrophy after puberty and calcified later in life Secrete the hormone melatonin
  2. 2. Function of Melatonin Coordinating circadian rhythm. As a timing signal to coordinate events the light-dark cycle in the environment. It increasing secretion of GnRH and sex hormones. Inhibits growth and development of sex organs before puberty.
  3. 3. THYMUS GLAND specialized organ of the immune system locate at upper part of the chest, behind the breastbone, and is made up of two lobes that join in front of the trachea. Secretes hormone called thymosin thymus produces and "educates" T- lymphocytes (T cells)
  4. 4. Function of Thymosin Its function is to transform lymphocytes (white blood cells developed in the bone marrow) into T-cells (cells developed in the thymus). These cells are then transported to various lymph glands, where they play an important part in fighting infections and disease.

×