ADRENALGAdreno
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Transcript of ADRENALGAdreno
WELCOME
SAJITHA SROLL NO:23
TOPIC: ADRENAL GLAND
UNIT : THE CHEMISTRY BEHIND THE RESPONSES
STANDARD : 10OBJECTIVES : To understand about
the functions adrenal gland
TOPIC : ADRENAL GLAND
ADRENAL GLAND & HORMONES
Endocrine glands Suprarenal glands Sit at the top of the kidneys Right handed triangular shaped Left handed semilunar shaped responsible for releasing hormones
introduction
Two distinct parts
Outer adrenal cortex Inner adrenal medulla
ADRENAL GLAND
Corticoids Divided into 3 layers1. Zona glomerulosa(outer layer)2. Zona fasciculata(middle layer)3. Zona reticularis(inner layer)
Adrenal cortex
Zona glomerulosa mineralocorticoids mainly aldosterone functions of aldosterone: salt and water balance in body,Reabsorb sodium iones and water,Excretion of k+ and phosphate iones Deficiency:Addison’s disease
Adrenal cortex
Zona fasciculata
Gluco corticoids Cortisol, Cortisone, corticosterone Functions : Increases blood glucose level, Promote gluconeogenesis, Stimulates RBC production, Breaks down Protiens & Fats, Stores glycogen in liver , Produces anti inflammatory reactions & suppresses the immune response Cushing’s syndrome
Adrenal cortex
Zona reticularis Gonado corticoids Androgen & Oestrogen Helps growth & functions of sex organs Masculinisation - females Gynaecomastia - males
Adrenal cortex
Adrenaline & Noradrenaline Catecholamines Emergency hormones or Hormones of fight / flight Secreted in response to stimulation by sympathetic
nerve Functions : Increases heart beat ,Increase Pupilary
dilation ,Piloerection ,Sweating,Increase strength of heart contraction & rate of respiration , Breakdown of glycogen resulting in an increased concentration of glucose in blood, Breakdown of lipids & proteins,Increase Blood pressure,Increase blood supply to the extrimities
ADRENAL MEDULLA
They modulate the functioning of every tissues , organ , glands
Have important effects on the way you think and feel
Enable your body to deal with stress from every possible source , ranging from injury and disease
To keep your body’s reactions to stress in balance so that they are appropriate and not harmful
CONCLUSION
QUESTIONS ?????............
Thank
you