endocrine system fall 2009. outline overview hormones specific endocrine organs & hormones

Endocrine System

Fall 2009

Outline

• Overview

• Hormones

• Specific Endocrine Organs & Hormones

Endocrine System: Overview• Endocrine system – the body’s second great controlling

system

• Major processes controlled– Reproduction– Growth & Development– Mobilization of body’s defenses– Maintenance of electrolyte, nutrient and water balance– Regulation of cellular metabolism– Energy balance

Hormones

Types of Hormones

Types of Hormones

Amino Acid–Based Hormone Action: cAMP Second Messenger

Figure 17.1a

Amino Acid–Based Hormone Action:

PIP-Calcium

Figure 17.1b

Steroid Hormones

Figure 17.2

Hormone Concentrations in the Blood

Control of Hormone Synthesis and Release

Figure 17.3a

Major Endocrine Organs: Pituitary

Figure 17.5

Figure 17.5

Pituitary-Hypothalamic Relationships: Anterior Lobe

Figure 11.15

Figure 11.16

Figure 11.17

Figure 11.18

Metabolic Action of Growth Hormone

Figure 17.6

Homeostatic Imbalances

Thyroid Gland

Figure 17.8a

Thyroid Hormone (TH)

Hypothyroidism

Graves Disease

Effects of Parathyroid Hormone

Figure 17.11

Adrenal Glands

Figure 11.06

Figure 11.19

Cushings Syndrome

Addisons Disease

Gonadocorticoids

Pancreas - Insulin

Pancreas - Glucagon

Pineal Gland

• Small gland hanging from the roof of the third ventricle of the brain

• Secretory product is melatonin• Melatonin is involved with:

– Day/night cycles– Physiological processes that show rhythmic

variations

Summary

• Overview

• Hormones

• Specific Endocrine Organs & Hormones