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6 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Hypothalamus |
Links nervous and endocrine system. Controls: - temperature - hunger + satiety centre - thirst centre - integrating centre of ANS Hormones: - TRH- Thyrotropin - PRF- Prolactin releasing factor 1 - PRIF- Prolactin releasing inhibitory factor - CRH- corticotrophin releasing hormone - causes anterior pituitary gland to secrete ACTH. This travels in the bloodstream to the adrenal Cortex to the zona fasciculata which releases cortisol this controls blood glucose concentration and regulates metabolism. - GnRH- Gonadotrophin releasing hormone ( Stimulates anterior pituatiry gland to secrete FSH) -GHRH- growth hormone releasing hormone - SS- somatostasis- Growth hormone inhibiting hormone |
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Pituitary gland |
Anterior pituitary produces 6 hormones and closed by a capsule of collagenous connective tissue and surrounded by thin walled blood vessels FSH ACTH LH GH PRL Thyroid Stimulating hormone posterior pituitary produces ADH and oxytocin. hormones travel Down axons into secretory vesicles |
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Pineal gland |
Secrets melatonin increases at night making you sleepy |
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Thyroid gland |
Thyroxine- responsible for growth and cell metabolism Triiodothyroninne- Cacitonin- produced by C cells in the thyroid gland stimulates born building in order to decrease increased calcium iron levels and phosphate levels and increased amount excreted by the kidney
Hyperthyroidism- increased weight loss, rapid heart rate and increased perspiration. Causes thyroid eye disease Symptoms: - watery eyes - redness - Eyelid swelling - light sensitivity
Hypothyroidism- tiredness and weight gain |
When core body temperature decreases this is detected by the hypothalamus and secrets thyrotropin-releasing hormone testing causes the anterior pituitary gland to secrete thyroid stimulating hormone follicular epithelial cells of the thyroid gland produce thyroglobulin thyroglobulin is broken down into triiodothyronine and thyroxine the Liver muscle will then produce more ATP which will increase the basal metabolic rate and therefore increase the core body temperature |
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Thymus gland |
Produces thymosin which is for white blood cell production and maturation |
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Ovaries and testes |
Ovaries- oestrogen + progesterone- has a role in secondary sexual characteristics. Progesterone works with oestrogen in the menstrual cycle Testes- testosterone |
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