Physio 2

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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

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Card Set

Physio 2

Description

questions for test 2

Updated

2016-09-26T17:40:18Z

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