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Hormone Notes

The pancreas controls blood glucose concentration through the release of hormones. It contains clusters of cells called the Islets of Langerhans. Alpha cells secrete glucagon if blood glucose levels fall, signaling the liver to convert glycogen to glucose and release it into the blood. Beta cells secrete insulin if blood glucose rises, stimulating uptake of glucose by tissues and reducing blood glucose levels. The pancreas balances blood glucose levels through these hormones to maintain homeostasis.

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49 views8 pages

Hormone Notes

The pancreas controls blood glucose concentration through the release of hormones. It contains clusters of cells called the Islets of Langerhans. Alpha cells secrete glucagon if blood glucose levels fall, signaling the liver to convert glycogen to glucose and release it into the blood. Beta cells secrete insulin if blood glucose rises, stimulating uptake of glucose by tissues and reducing blood glucose levels. The pancreas balances blood glucose levels through these hormones to maintain homeostasis.

Uploaded by

laeticia schmies
Copyright
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We take content rights seriously. If you suspect this is your content, claim it here.
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CE 3 GUC S

·
pancreas cells control blood
glucose concentration

deviation of blood glucose


level from Immol/L (80-g0mg/dL) lead to homeostasy process initrated
by moulin &
glucagon

hypotonic
·
too much too less celk become
or ,
or
hypertonic

pancreas two
glands
:

organ
in

exocrine trasue release


digestive enzymes Intestine
·
into

· endocrine trobue release hormones into blood Golets of


Langerhans
If blood
·
level fall below set point
Alpha celly
Synthesize + Secrete
glugon glucose

broken down
glycogen to
glucose in liver I released into blood

Beta 4 Secrete insulin if blood level rise point


Cells
Synthese glucose above set

Stimulate Skeletal muscle


uptake of glucose by various trosues ,
ie . a liver to convert to
glycogen

reduce blood
glucose con

insulin broken down


by cells It acts on

broken I are absorbed bloodstream


1. After meals, Carbohydrates are down into
glucose molecules into the

2 Cells that require


.
are in tissues that are
suddenly increasing the rate of respiration are
going to more
glucose than normal

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