Endocrine-Topic1.Sp10.pptx

Endocrine-Topic1.Sp1 - Topic#1 Endocrinology 1 Organization of Endocrine Lecture 1 • Endocrine System as a Regulatory System • Comparison to

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Unformatted text preview: Topic #1 Endocrinology 1 Organization of Endocrine Lecture 5/18/10 1 • Endocrine System as a Regulatory System • Comparison to Neural Regulation & Interaction between Nervous and Endocrine Systems. • Action of Hormones and How They Regulate Function • Hormones Action on Target Site – Distant with transport in blood, Paracrine , Autocrine & Neurocrine • Classification of Hormones Based on Structure and Action – Peptides/Proteins , Neuropeptides , Amines & Steroid Hormones , Pheromones • Review of Negative and Positive Feedback • Endocrine Pancreas – Insulin, Glucagon & Somatostatin. • Insulin Role in Absorptive State. • Glucagon Role in Post-Absorptive State. • Somatostatin Role in Limiting Swings in Blood Glucose when a Large Meal is Consumed. • Regulation of Calcium and Phosphate Balance through • Vitamin D, (Calcitriol) • Parathyroid Hormone (PTH) • (and Calcitonin .) • Physiology of Bone & Bone Remodeling. • Neuroendocrine Regulation – Hypothalamus and Pituitary Axis . • Action and Regulation of Growth Hormone • Action and Regulation of Thyroid Hormones • Adrenal Cortex and Steroid Hormones Required Reading for Reproduction: pp. 780 – 796 (Implantation, Gestation, Parturition, & Lactation. Topic #1 Endocrinology 2 Introduction 5/18/10 2 Endocrinology – Regulation and Homeostasis through the actions of Hormones Hormone – Peptides, Steroids and Amines • Secreted by ductless glands, • Hormones act locally or are carried by the vascular system to other tissues of the body. Neurocrines – neurotransmitters having an endocrine action • Neurotransmitters released into the circulatory system and have a systemic effect • Topic #1 Endocrinology 2 Introduction 5/18/10 2 Endocrinology – Regulation and Homeostasis through the actions of Hormones Hormone – Peptides, Steroids and Amines • Secreted by ductless glands, • Hormones act locally or are carried by the vascular system to other tissues of the body. Neurocrines – neurotransmitters having an endocrine action • Neurotransmitters released into the circulatory system and have a systemic effect • Act on other neurons whose neurotransmitters have a systemic effect Topic #1 Endocrinology 3 Comparison of Regulation by the Nervous System and Endocrine System 5/18/10 3 Nervous System Endocrine System • Rapid Action – msec to sec. • Localized, Specific Site of Action. • Communicates using neurotransmitters among neurons & effector tissues • Neurotransmitters act locally over very short distances. • Slow Action – seconds, minutes, hours, days. • Generalized Action on Metabolism, Growth and Development, & Regulation Body Water • Communicates through neurosecretions and hormones that can act locally, act on adjacent cells and tissue, or at tissues distant from the site of secretion....
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This note was uploaded on 09/23/2010 for the course NPB 8746546 taught by Professor Goldberg during the Spring '10 term at UC Davis.

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Endocrine-Topic1.Sp1 - Topic#1 Endocrinology 1 Organization of Endocrine Lecture 1 • Endocrine System as a Regulatory System • Comparison to

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