Endocrine System SAQs.docx

The Endocrine System SAQs - What is an endocrine gland?  1. A ductless gland that secretes hormones into the blood  - What hormone is produced by the pituitary gland?  1. ADH  - What hormone is produced by the Thyroid gland? 1. Thyroxine  - What is the function of thyroxine? A. I...

The Endocrine System SAQs - What is an endocrine gland?  1. A ductless gland that secretes hormones into the blood  - What hormone is produced by the pituitary gland?  1. ADH  - What hormone is produced by the Thyroid gland? 1. Thyroxine  - What is the function of thyroxine? A. It controls the rate of metabolism  - What is the feedback mechanism?  1. when the production of one hormone turns on or off the production of another hormone to aid homeostasis.  - Which gland has both endocrine and exocrine roles? 1. The pancreas  - What is the exocrine role of the pancreas? A. secretes pancreatic juice that flows through ducts to duodenum - What is the endocrine role of the pancreas? A. its 'Islets of Langerhans' secrete insulin which regulates blood sugar levels  - State 1 use of hormone supplements  1. Insulin used in the treatment of diabetes/ Oestrogen and progesterone used in the contraceptive pill to prevent pregnancy  - Name a disorder of the endocrine system that occurs when there is a thyroxine deficiency 1. Goitre  - State the symptoms of Goitre. A. lack of energy, fatigue, confusion, depression, weight gain**. ** - Name a treatment for goitre A. hormone replacement therapy**/** an iodine rich diet - Name a disorder of the endocrine system that occurs when there is an excess of thyroxine. A. Grave's Disease  - State the symptoms of Grave's Disease a. **raised metabolism, weight loss, nervousness.**  - Name a treatment for Grave's Disease