12 results
The principal endocrine 'axes' and glands. Parathyroid glands, adrenal zona glomerulosa and endocrine pancreas are not
controlled by the pituitary ... Italics show negative ... Endocrine #Axes #Endocrinology ... #Pathophysiology ... Pathways #Diagnosis #Pituitary
Menstrual Cycle Physiology: The Hypothalamic-Pituitary-Ovarian Axis
Estrogen, when released:
 • Negatively feeds back on the hypothalamus and
The Hypothalamic-Pituitary-Ovarian ... released: • Negatively ... hypothalamus and anterior pituitary ... MenstrualCycle #pathophysiology ... HypothalamicPituitary #endocrinology
Pituitary Mass Effects - Pathogenesis and Clinical Findings
 • Pituitary turnors are almost always a benign
Pituitary Mass Effects ... Pituitary adenomas ... Signs / Symptoms ... #SideEffects #endocrinology ... mnemonic #GLFTAP #pathophysiology
Primary Hyperthyroidism - Pathogenesis and Clinical Findings

Note: Although rare, gestational diseases can lead to thyrotoxicosis due
production by the pituitary ... Signs/Symptoms: ... Hyperthyroidism #endocrinology ... #pathophysiology
Feedback Loop: Growth Hormone (GH)
Growth Hormone:
 • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
activates lipolysis Signs ... #FeedbackLoop #endocrinology ... #pathophysiology ... #pituitary
Glucocorticoid-Induced Osteoporosis: Pathogenesis and Clinical Findings

 • Negative feedback on hypothalamus/pituitary, Decreasing ACTH -> Decr Sex
Findings • Negative ... on hypothalamus/pituitary ... #Osteoporosis #pathophysiology ... #signs #symptoms
Menstrual Cycle Physiology: Ovarian Cycle – Ovulation Explained

Around Day 14, estrogen exerts sudden +++ positive feedback
on the anterior pituitary ... (switch from negative ... #OvarianCycle #pathophysiology ... #Ovulation #endocrinology
Menstrual Cycle Physiology: Ovarian Cycle – Follicular Phase Explained
Early Follicular Phase (Days 0-5)
 • Granulosa cells
production by pituitary ... estrogen from negatively ... Negatively feeds ... #OvarianCycle #pathophysiology ... FollicularPhase #endocrinology
Acute Otitis Media: Pathogenesis and Clinical Findings (in Children)
Upper Respiratory Tract Infection: 
 - Bacterial: Streptococcus
circulation creating negative ... pressure => Negative ... #OtitisMedia #pathophysiology ... diagnosis #symptoms #signs ... #peds #pediatrics
Menstrual Cycle Physiology: Ovarian Cycle – Luteal Phase Explained
 • The LH surge can be thought
progesterone and estrogen negatively ... hypothalamus and anterior pituitary ... #OvarianCycle #pathophysiology ... #LutealPhase #endocrinology