Recommended
More Related Content
Similar to PHYSIOLOGY OF ENDOCRINE SYSTEM.pptx
Similar to PHYSIOLOGY OF ENDOCRINE SYSTEM.pptx (20)
Recently uploaded
Recently uploaded (20)
PHYSIOLOGY OF ENDOCRINE SYSTEM.pptx
- 1. PHYSIOLOGY OF ENDOCRINE SYSTEM
- 2. OVERVIEW OF ENDOCRINE SYSTEM • INTRODUCTION • HORMONES • PITUITARY GLAND • THYROID GLAND • PARATHYROID GLAND & PHYSIOLOGY OF BONE • ENDOCRINE FUNCTION OF PANCREAS • ADRENAL CORTEX • ADRENAL MEDULLA • ENDOCRINE FUNCTION OF OTHER ORGANS • LOCAL HORMONES
- 3. All the physiological avtivities of the body are regulated by two major system : NERVOUS SYSTEM ENDOCRINE SYSTEM
- 4. ENDOCRINE SYSTEM • Consist of Endocrine glands • Also called as Ductless Glands ( because the hormone secreted by them are released directly into the blood without any duct. • Endocrine glands are the glands which synthesize and release the classical hormones into the blood.
- 5. FUNCTION OF ENDOCRINE SYSTEM • Endocrine system functions by secreting some chemical substances called Hormones. • It’s play an important role in Homeostasis & control of various activities in the body through their hormones.
- 6. ACTION OF ENDOCRINE SYSTEM Endocrine system works via cell-to-cell signaling CELL-TO-CELL SIGNALING:- Refers to the transfer of information from one cell to another ( through some chemical substances called CHEMICAL MESSENGERS) • It’s also called cell signaling or, intercellular communication.
- 7. CHEMICAL MESSENGERS • The chemical substances which involved in cell signaling is known as chemical messengers. • These messengers are mostly secreted from endocrine glands. • All the chemical messengers carry the message from sigaling cell (controlling cells) to target cells
- 8. CLASSIFICATION OF CHEMICAL MESSENGERS 1. ENDOCRINE MESSENGERS Transported by blood to the target organ or tissues. e.g. Growth hormone & Insulin 2. PARACRINE MESSENGERS Transport through interstitial fluid. e.g.PGs & Histamine 3. AUTOCRINE MESSENGERS Acts on same cell. e.g. leukotrienes 4. NEUROCRINE MESSENGERS A. NEUROTRANSMITTER:- Transport of messengers through the synaptic cleft. E.g Acetylcholine , Dopamine B. NEUROHORMONE:- Transport of messengers through blood . E.g. Oxytocin
- 9. •Chemical messengers are usually classified into two types:- 1.Classical Hormones ( secreted by Endocrine Glands) 2. Local Hormones ( secreted from other Tissues)
- 10. HORMONES SECRETED FROM MAJOR ENDOCRINE GLANDS ENDOCRINE GLANDS HORMONES ENDOCRINE GLANDS HORMONES 1. ANTERIOR PITUITARY 1. GROWTH HORMONE (GH) 2. THYROID- STIMULATING HORMONE (TSH) 3. ADRENOCORTIOC OTROPIC HRMONE (ACTH) 4. FOLLICLE- STIMULATING HORMONE (FSH) 5. LUTEINIZING HORMONE (LH) 6. PROLACTIN 5.ADRENAL CORTEX MINERALOCORTICOIDS 1. ALDOSTERONE 2. 11- DEOXYCORTICOSTERON E GLUCOCORTICOIDS 1. CORTISOL 2. CORTICOSTERONE SEX HORMONES 1. ANDROGENS 2. ESTROGEN 3. PROGESTERONE 2. POSTERIOR PITUITARY 1. ANTIDIURETIC HORMONE (ADH) 2. OXYTOCIN 6.ADRENA MEDULLA 1. CATECHOLAMINES 2. ADRENALINE (EPINEPHRINE) 3. N0RADRENALINE (NOREPINEPHRINE) 4. DOPAMINE