Day 6
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Day 6

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Day 6 presentation for Bio2

Day 6 presentation for Bio2

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Day 6 Day 6 Presentation Transcript

  •  Responsible in regulating physiological processes and adjustments in metabolism, fluid balance, growth and reproduction. › Works closely with the Nervous System.  The study of the Endocrine System is called Endocrinology.
  • Hormones – chemical messengers produced and secreted by endocrine glands responsible for the regulation of body processes. They stimulate specific tissues to do processes.
  •  Fatty acid derivatives Steroid hormones Amino acid derivatives Peptide hormones
  • › Some hormones enter the cell and activate genes› Many hormones act by signal transduction
  •  Epinephrin – causes adrenaline rush Angiotensin – causes vasoconstriction Angiotensinogen – causes vasoconstriction Calcitonin – reduces blood Ca2+ Cholecystokinin – release of bile and digestive enzymes from the pancreas
  •  Gastrin – stimulates the release of gastric juices Ghrelin – stimulates appetite Glucagon – increases blood glucose Growth Hormone – stimulates growth and cell production Insulin – lowers blood glucose
  •  Leptin – lowers appetite, increases metabolism Orexin – stimulates awakeness Parathyroid hormone – increases blood Ca2+ Testosterone – libido, increase in muscle mass and strength
  •  Responsible for defending the body from foreign materials that cause diseases, called pathogens. › Immunology is the study of the Immune System. › Vertebrates are special because they have WBCs that are specialized in carrying out immune responses.
  •  Antigens – causes the production of the antibodies Antibodies – identifies and neutralizes foreign materials like bacteria or viruses
  •  Lysozyme Cytokines Interferons Macrophages Interleukins Phagocytes
  •  Body’s response to pathogen invasion or physical injury. › Mast cells › Edema, or swelling › fever
  •  Antibody-mediated Cell-mediated
  •  Phagocytes › Neutrophils › macrophages Lymphocytes › T cells › B cells › NK cells
  •  A very complicated process involving antibodies. Takes two to three days to discuss. We’ll skip this.
  •  Active immunity Passive immunity
  •  Asexual Sexual
  •  Budding Fragmentation Parthenogenesis
  •  Internal Fertilization Hermaphroditism
  •  Sperm Scrotum Epididymis Vas deferens Ejaculatory duct Seminal Vesicles Bulbourethral gland Penis
  •  Egg Follicle Oviduct Uterus Endometrium Vagina