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Melatonin funciton and location
Pineal Gland
its function is to regulate Circadian Rythm (sleep)
Antidiuretic Hormone ADH location and function
Located in Posterior Pituitary Gland
Function is to enhance water re-absorption for kidney to maintain stable blood pressure
Oxytocin function and location
Located in Posterior Pituitary
Its function is milk ejection
T4 Thyroxine location and function
located in Thyroid Gland
Function is to regulate metabolism
T3 Triiodothyronine location and function
located in Thyroid gland
its function is to regulate metabolism
Calcitonin location and function
Located in Thyroid gland
its function is to reduce blood calcium levels
enhance calcium deposition in bones and decrease calcium re-absorption in kidney
Parathyroid hormone PTH
Located in Parathyroid gland
Increase Blood calcium level
increase bone breakdown
decrease calcium excretion from kidney
increase abosrption by enhancing Vitamin D3 synthesis
Aldosterone (Mineralocorticoids) location and function
Located in Adrenal Glands
↑Blood pressure by ↑ Na+ reabsorption in kidney ↓ K+ levels
Cortisol (Glucocorticoids)/stress hormone location and function
located in Adrenal Glands
regulates the bodies response to stress
Sex hormone (androgens) location and function
located in Adrenal glands
regulates reproductive functions
Epinephrine (adrenaline, peptide) location and function
Located in Inner layer of Medulla
Fight or flight response
Difference between Primary and Secondary endocrine systems
Primary endocrine organ
:Primary job is to secret hormone–e.g Hypothalamus, pituitary glands, parathyroid glands
Secondary Endocrine organ
:Secreting hormone is not its major function–e.g Heart, Stomach, Liver
Describe Anterior Pituitary gland
produces own hormone
thyroid stimulating hormone TSH
Adrenocorticotrophic hormone ACTH
NO neural connection w/ hypothalamus
Describe Posterior Pituitary gland
Hormone storage only
Neural connention w/ hypothalamus
Antidiuretic hormone ADH
oxytocin
What are the 3 hormones secreted by Thyroid gland?
T3 triiodothyronine
T4 Thyroxine
Cacitonin
What are the 3 hormones secreted by the Adrenal Glands?
Aldesterone
Cortisol
Sex hormone
Pancreas secretes
Endocrine and Exocrine
Define Exocrine
Enzymes and secretion for digestion
Define Endocrine
Hormone secretion
α cell
: Glucagon ↑ blood glucose
β cell
: Insulin ↓ blood glucose
What is Hyposecretion?
Too little secretion of hormones
ex
: type 1 diabetes
What is Hypersecretion?
Too much secretion of hormone
ex
: too much hormone gigantism acromegaly
How does the body regulate blood glucose level?
What is Abnormal tissue responsiveness?
Normal hormone levels
Tissue responds inappropriately
E.g Type 2 diabetes
Difference between primary and secondary secretion disorders
Primary
: Abnormality in the endocrine organ that secrets the hormone
Secondary
:Abnormality in hypothalamus or anterior pituitary
High CRH + High ACTH + High Cortisol =
Secondary Hypersecretion in hypothalamus
Low CRH + High ACTH + High Cortisol =
Secondary Hypersecretion in Anterior Pituitary
Low CRH + Low ACTH + High Cortisol =
Primary Hypersecretion in Adrenal cortex
High CRH + High ACTH + Low Cortisol =
Primary Hyposecretion in Adrenal Cortex
What are 3 ways of hormone interaction?
Antagonism
: (Antagonistic) Hormones oppose each other-Glucagon: ↑ Blood Glucose -Insulin: ↓Blood Glucose
Synergism
: (Synergistic) Net effect exceeds the sum of individual effects (1+1 = 5)
Permissiveness:
(Permissive) Presence of one hormone is needed for another hormone to exert its actions
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Author
nlopez850
ID
323684
Card Set
Physio 2
Description
questions for test 2
Updated
2016-09-26T17:40:18Z
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