The Endocrine System- glands

Pituitary, master gland
1. Luteinising hormone
2. Follicle stimulating hormone
3. Growth hormone
  1. Cause body cells to absorb amino acids and form protein- results in growth especially elongation of bones
Hypothalamus
1. Secretes hormones that control the pituitary gland in response to messages from the brain and other hormones
  1. Anti diuretic hormone
    1. Causes water to be reabsorbed in the kidneys
Pineal
1. Melatonin
  1. Produced when we are asleep
    1. Involved in biological rhythms such as ovulation, sleep and activity patterns
Thyroid
1. Trachea
  1. Thyroxine (tyrosine+iodine)
    1. Controls metabolism
Parathyroid(4 glands)
1. Parathormone
  1. Stimulates the release of calcium from bones into blood plasma
Thymus
1. Behind the breast bone and in the upper chest
  1. Thymosin
    1. Causes lymphocytes to mature and become active
2. Degenerate around puberty
Adrenals
1. Kidneys
  1. Adrenaline
    1. Helps the body cope with stress- 'fright/fight/flight' hormone
Pancreas
1. Both exocrine and endocrine gland
  1. Exocrine Bulk of the pancreas produce enzymes that flow to the duodenum through ducts
  2. Islets of langerhans
    1. Insulin
      1. Causes cells, muscle and fat cells, to absorb glucose from the blood
Ovaries and testes

Resource summary

	Created by Niamh O'Dowd about 7 years ago