Ace Your First Aid for the USMLE Step 1 (2023) Classes and Exams with Picmonic: #1 Visual Mnemonic Study Tool for Medicine (MD/DO) Students
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First Aid for the USMLE Step 1 (2023) | Medicine (MD/DO) School Study Aid
Renin Angiotensin Aldosterone System (RAAS) Regulators
- Activators
- Hypotension
- Hypovolemia
- Decreased NaCl Delivery to Macula Densa
- Sympathetic Stimuli
- Key Mediators
- Angiotensin II
- Aldosterone
- Antidiuretic Hormone
- Negative Feedback
- Atrial Natriuretic Peptide and Brain Natriuretic Peptide
2 mins
Angiotensin II Synthesis
- Juxtaglomerular Apparatus
- Juxtaglomerular Cells
- Mesangial Cells
- Macula Densa
- Distal Tubule
- KEY MEDIATORS
- Angiotensinogen
- Secreted from Liver
- Renin
- Secreted from Juxtaglomerular Cells
- Catalyzes Angiotensinogen to Angiotensin I
- Angiotensin Converting Enzyme (ACE)
- Pulmonary Capillaries
- Catalyzes Angiotensin I to Angiotensin II
3 mins
Angiotensin II Effects
- Effects On Vasculature
- Increases Vascular Smooth Muscle Contraction
- Increases Blood Pressure
- Effects on Kidney
- Efferent Arteriole Vasoconstriction
- Increases GFR
- Proximal Tubule
- Sodium and Water Reabsorption
- Adrenal Cortex
- Increases Aldosterone Secretion
- Effects on CNS
- Stimulates Posterior Pituitary Gland to Secrete Vasopressin (ADH)
- Stimulates Thirst in Hypothalamus
2 mins
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