Order of usage of energy sources
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1st: liver + muscle glycogen
2nd: Muscle protein
3rd: Fat
T/F: Spinach helps you absorb more Ca
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False. Spinach digestion forms Ca-oxylate which does not ionize - blocks
any further Ca absorption
,3 Situations of bone remodelling
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1. Arthritis - inflammatory action of bones at joints
2. Bone spur from exercise
3. Pregnancy -> reabsorb Ca for fetus development
What are acrosomes?
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Found in the top of nucleus hear of spermatozoa. Used for fusion with the
egg
Role of GLP-1
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Increase insulin release
Decrease glucagon release
Increase beta cell growth
T/F: the G-alpha subunit is active when it is GDP bound.
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, False. Active when its GTP bound
Hypocalcemia
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Low Ca (< 1.5mmol).
- Hyper excitable neurons
- Tingling hands + feet, twitching, tired, irritable, muscle tetany +
asphyxiation
Give 3 qualities of a peptide hormone.
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- Synthesized in advanced + stored in vesicle (packed in golgi)
- Released via exocytosis
- Travels through blood to target
- 3+ Amino acids
- Water soluble
- Short 1/2 life (~5 min)
- Made in rough ER
- Largest concentration near gland that secreted it
- Bind receptor on target cell(s)
Formal definition of a hormone
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, Substance secreted from cell(s) into blood stream and exerts a regulatory
action at low concentrations on a distant target
What does AMH do?
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Anti mullerian hormone.
Causes regression of mullein duct
Similarities of Aldosterone and Cortisol
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- Bind mineral corticoid receptors
- freely enter cell, cortisol can bind the aldosterone receptor
Role of testosterone and DHT in germ cell developement
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- Stimulate sertoli cell proliferation and developement
3 Natriuretic Peptides
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1st: liver + muscle glycogen
2nd: Muscle protein
3rd: Fat
T/F: Spinach helps you absorb more Ca
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False. Spinach digestion forms Ca-oxylate which does not ionize - blocks
any further Ca absorption
,3 Situations of bone remodelling
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1. Arthritis - inflammatory action of bones at joints
2. Bone spur from exercise
3. Pregnancy -> reabsorb Ca for fetus development
What are acrosomes?
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Found in the top of nucleus hear of spermatozoa. Used for fusion with the
egg
Role of GLP-1
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Increase insulin release
Decrease glucagon release
Increase beta cell growth
T/F: the G-alpha subunit is active when it is GDP bound.
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, False. Active when its GTP bound
Hypocalcemia
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Low Ca (< 1.5mmol).
- Hyper excitable neurons
- Tingling hands + feet, twitching, tired, irritable, muscle tetany +
asphyxiation
Give 3 qualities of a peptide hormone.
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- Synthesized in advanced + stored in vesicle (packed in golgi)
- Released via exocytosis
- Travels through blood to target
- 3+ Amino acids
- Water soluble
- Short 1/2 life (~5 min)
- Made in rough ER
- Largest concentration near gland that secreted it
- Bind receptor on target cell(s)
Formal definition of a hormone
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, Substance secreted from cell(s) into blood stream and exerts a regulatory
action at low concentrations on a distant target
What does AMH do?
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Anti mullerian hormone.
Causes regression of mullein duct
Similarities of Aldosterone and Cortisol
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- Bind mineral corticoid receptors
- freely enter cell, cortisol can bind the aldosterone receptor
Role of testosterone and DHT in germ cell developement
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- Stimulate sertoli cell proliferation and developement
3 Natriuretic Peptides
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