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9. The Endocrine System. The Endocrine System. I. Introduction A. = control system composed of Endocrine Glands that make Hormones B. Major Organ Systems & Processes Controlled. Pineal gland. Hypothalamus. Pituitary gland. Thyroid gland. Parathyroid glands. Thymus. Adrenal glands.
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9 The Endocrine System
The Endocrine System I. Introduction A. = control system composed of Endocrine Glands that make Hormones B. Major Organ Systems & Processes Controlled
Pineal gland Hypothalamus Pituitary gland Thyroid gland Parathyroid glands Thymus Adrenal glands Pancreas Ovary (female) Testis (male) Figure 9.3
C. How Hormones work *Hormones: Define 2. *Target Cells & Organs = 3. Protein Receptors 4. How do Hormones affect the DNA molecules? Then, proteins do what? 5. Connection to Brain: Brain/Hypothalamus Hormone DNA Specific Proteins then produced ORGAN RESPONSE: proteins affect what cells and organs are doing Receptor TTARGET CELL
I-C. How Hormones Work … II. Specific HormonesA. Pituitary Gland 1. *Location: *Two lobes: name and give type tissue 2. Importance: Hypothalamus Pituitary Gland
Hypothalamus Hypothalamus Releasing hormones secreted into portal circulation Hypothalamus Anterior pituitary Posterior pituitary Hypophyseal portal system Adrenocorticotropic hormone (ACTH) Growth hormone (GH) Thyrotropic hormone (TH) Adrenal cortex Bones and muscles Prolactin (PRL) Follicle-stimulating hormone (FSH) and luteinizing hormone (LH) Mammary glands Thyroid Testes or ovaries Figure 9.4
3. Hormones of the Anterior Pituitary a. Stimulus for Release: b. Growth hormone ii) *Target Organs: the two main ones are? iii) Functions: Overall is Metabolism Cell Division & Growth of: Use of Fats for energy, iv) *Disorders– What is the Cause and Affect? *Pituitary dwarfism *Gigantism
Hormones of the Anterior Pituitary… c. *Prolactin *Target Organ *Function: d. Reproductive Stimulating Hormones *Target Organ Function: Involvement of Hypothalamus:
4.*Hormones of the Posterior Pituitary Name them & give Target a. *Where are Hormones made? b. ADH = *__________________ hormone *Target Organ Function: c. *____________________ *Target Organs Functions: (1) (2)
B. Thyroid Gland Stimulus for Release: *Location Hormones– Name the two hormones a. * _________________ Target Cells Functions Disorders: Hyper- and Hypo-Thyroidism: Thyroid Gland
Hyperthyroidism (Graves’ Disease) Figure 9.9
C. Adrenal Glands– Adrenal Medulla 1. *Location: 2. Hormones– many, we will do two Epinephrine (adrenaline) b. Norepinephrine (noradrenaline) Deal with: Adrenal Gland
D. Pancreas-- Pancreatic Islets 1. *Location: 2. HormonesName the two hormones a. * ___________-- Function: b. *___________-- Function: 3. Disorders-- Hyperglycemia 4. Other Pancreas Function: Pancreas
E. Gonads *Gonads: define *Location *Hormones of the Ovaries name the two hormones *_________________ Function: *_________________ Function: 3. Hormones of the Testes name the hormone *___________________ Function: Gonads
F. Other Organs that make one or a few Hormones • Kidney produces Erythropoietin: • Stomach and Intestine produce Gastrin: END