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Title: ENDOCRINE
Description: EDEXCEL PEARSONS BTEC LEVEL 3 APPLIED SCIENCE PASS MERIT DISTINCTION
Description: EDEXCEL PEARSONS BTEC LEVEL 3 APPLIED SCIENCE PASS MERIT DISTINCTION
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UNIT 12
Assignment: 2
TASK 1
The endocrine system is the group of organs that deliver hormones that control digestion system, development and
growth, tissue function, sexual function, reproduction, rest, and mood, in addition to other things such as chemical
substances created in the body that regulate the activity of cells or organs
...
Specifically, into the blood as opposed to through a duct
...
A hormone is the body's chemical messenger
...
They
work gradually, after some time, and influence a wide range of procedures, including the development and growth
...
Hormones are utilized to impart in the middle of organs and tissues to manage physiological and behavioural exercises,
for example, processing, digestion system, respiration, tissue function, rest, discharge, lactation, anxiety, development
and growth, movement, reproduction, and mood
...
Insulin is a little protein involving an alpha chain of 21 amino acids associated by two disulfide (S—S) structure to a
beta chain of 30 amino acids
...
It revives skeletal muscle strands to take up glucose and
convey it into glycogen; take up amino acids from the blood and change over them into protein
...
Taken together, these exercises result in: the limit of the dissolvable supplements held from the digestive tract into
insoluble (glycogen, protein, fat)
...
Glucagon acts essentially on the liver where it stimulates the change of glycogen into glucose ("glycogenolysis") and fat
and protein into moderate metabolites that are in the end changed over into glucose ("gluconeogenesis")
...
Glucagon release is engaged by low levels of glucose in the blood;
Blocked by strange states, and ruined by amylin
...
The adrenal cortex, the external piece of the organ, produces hormones that are crucial to life, for example, cortisol
(which directs digestion system and offers your body some assistance with responding to stretch) and aldosterone
(which controls pulse)
...
This is the body's reaction to risk or threat
...
Initially named for
its capacity to empower us to physically battle or flee when confronted with threat, it's presently enacted in
circumstances where neither one of the responses is proper, as in activity or amid an upsetting day at work
...
The fight or flight reaction, otherwise called the intense anxiety reaction, alludes to a mental response that happens in
the vicinity of something that is frightening, either rationally or physically
...
The thoughtful sensory systems fortify the adrenal organs setting off the arrival of catecholamine, which incorporate
adrenaline and noradrenaline
...
After the danger is
gone, it takes between 20 to an hour for the body to come back to its pre-excitement levels
...
Basically, the reaction readies the body to
either battle or escape the risk
...
TASK 4
Homeostatic mechanisms
...
The
consistent checking and changing of these add to homeostasis, which empowers the body to work at an ideal enduring
state
...
These systems change the variable back to its
unique state or "perfect worth"
...
The indoor
regulator contains the receptor (thermometer) and control focus
...
At the point when
glucose rises, receptors in the body sense a change
...
When glucose levels achieve homeostasis, the pancreas quits discharging
insulin
...
With negative
feedback, the yield decreases the first impact of the jolt
...
A decent case of a positive feedback framework is labour
...
The increment in
withdrawals makes more oxytocin be discharged and the cycle goes ahead until the child is conceived
...
Another great illustration of a positive feedback system is blood thickening
...
The platelets keep on heaping up and
discharge chemicals until a coagulation is framed
...
TASK 5
The nervous system reacts to stimuli by transfer of electrical action potentials along neurons, which in turn convey
these action potentials to their target cells using neurotransmitters, the chemical messenger of the nervous system
...
Page 2 of 4
UNIT 12
Assignment: 2
Hormones are created at a distance from their target cells, and pass through the bloodstream or intercellular fluid until
they reach these cells
...
This procedure takes considerably longer, as hormones must first be produced, conveyed to their target cell, and
signal or enter the cell
...
Although hormones act more slowly than a nervous impulse, their effects are long lasting
...
The CNS and endocrine system cooperate to maintain homoeostasis
...
The endocrine system recognises longer – term adjustments by conveying chemical messengers
(hormones) into the circulation system
The CNS and endocrine system are connected in three key areas, structure, substance, and function
...
Both SYSTEMS are the COMMUNICATION connections of the body and help
the body's life SYSTEMS to work accurately and in connection to one another
...
Not just does the hypothalamus release hormones into the circulatory system, IT ALSO
directs the arrival of hormones in the back pituitary organ
...
The
adrenal medulla is DERIVED from the same cells that create certain ganglia
...
N
...
, 2013
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30
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com, 'Hormones of the Pancreas'
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p
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Title: ENDOCRINE
Description: EDEXCEL PEARSONS BTEC LEVEL 3 APPLIED SCIENCE PASS MERIT DISTINCTION
Description: EDEXCEL PEARSONS BTEC LEVEL 3 APPLIED SCIENCE PASS MERIT DISTINCTION