1 / 6

The kidneys

The kidneys. Steroid hormone, Calcitriol : Calcium uptake from kidneys, requires Vitamin D 3 . Peptide hormone, Erythropoietin (EPO) : stimulates RBC production, increase in O 2 .

tirza
Télécharger la présentation

The kidneys

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The kidneys • Steroid hormone, Calcitriol: Calcium uptake from kidneys, requires Vitamin D3. • Peptide hormone, Erythropoietin (EPO): stimulates RBC production, increase in O2. • Enzyme, Renin: released when blood volume and pressure is low; forms Angiotensin II which increases ADH and aldosterone production.

  2. The thymus • Location: posterior to the sternum • Maximum size at puberty; gradual decrease in size over time • 40g @ puberty  12g @ 50 • Hormone: thymosins • Function: development and balance of immune system

  3. The gonads (Table 10-4, P. 352) Testes Ovaries Cells: Follicles Estrogens Maturation of ova (eggs), female secondary sex characteristics, associated behaviors Progestins Progesterone: movement of fertilized eggs and preparation of uterus • Cells: Interstitial cells • Androgens • Testosterone: sperm production, maintain function of male reproductive tract, secondary sex characteristics, protein synthesis, aggression

  4. Adipose tissue • Two peptide hormones • Leptin: relay to hypothalamus for satiation and appetite control; gonadotropin synthesis • Resistin: insulin insensitivity, possible link between obesity and type 2 diabetes

  5. Hormones and aging • Aging does not dramatically affect the endocrine system • Exceptions: • Estrogen: decrease production during menopause; linked to bone loss and osteoporosis. • As tissues age, their sensitivity to hormones may decrease. (ex. Glucocorticoids, decreased metabolism)

  6. Homework • CO 5 (Pituitary, Thyroid, Parathyroid, Adrenal, Pineal, Pancreas, Kidneys, Thymus, Testes, Ovaries & Adipose Tissue) • Vocab: Infundibulum, Prolactic, Oxytocin, Erythropoietin • Due: Wednesday, 3/20 • Study for Unit Test: Monday, March 25th.

More Related