Why must fetal hemoglobin have a much higher O2 binding affinity than HbA? _____
#4
Carbon monoxide binds competitively to Hb and with 200-250x _____ affinity than O2
#5
The _____ form of hemoglobin is found in the respiratory tract
#6
What is the secondary regulator of cerebral perfusion?
#7
What is the primary regulator of cerebral perfusion?
#8
How long can the brain withstand hypoxia before sustaining irreversible damage?
#9
COPD, cyanotic congenital heart disease, obstructive sleep apnea, and high altitude cause _____ polycythemia
#10
Which zone of the lung has the highest Pao2?
_____
Hemoglobin-oxygen binding US Medical PG Flashcards - Medical Study Cards
Master Hemoglobin-oxygen binding with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.
Flashcard 3: Why must fetal hemoglobin have a much higher O2 binding affinity than HbA? _____
Answer: Drives O2 diffusion across placenta from mother to fetus
Flashcard 4: Carbon monoxide binds competitively to Hb and with 200-250x _____ affinity than O2
Answer: greater
Flashcard 5: The _____ form of hemoglobin is found in the respiratory tract
Answer: relaxed
Flashcard 6: What is the secondary regulator of cerebral perfusion?
Answer: PO2 - only takes effect during severe hypoxia
Flashcard 7: What is the primary regulator of cerebral perfusion?
Answer: PCO2
Flashcard 8: How long can the brain withstand hypoxia before sustaining irreversible damage?
Answer: 5 minutes
Flashcard 9: COPD, cyanotic congenital heart disease, obstructive sleep apnea, and high altitude cause _____ polycythemia
Answer: physiologic secondary
Extra:
* due to chronic hypoxia
Watch Polycythemia [https://dashboard.sketchy.com/study/medical/courses/medical-pathophysiology/units/medical-pathophysiology-myeloid-lymphoid/videos/medical-pathophysiology-myeloid-and-lymphoid-myeloid-disorders-polycythemia?utm_source=anki&utm_medium=partnership&utm_campaign=february_update&utm_content=medical]
https://onlinemeded.org?ref=anki
Flashcard 10: Which zone of the lung has the highest Pao2?
_____
Answer: Zone 1
Extra:
Watch associated Bootcamp video [https://app.bootcamp.com/med-school/pulmonology/videos/blood?index=14]
https://onlinemeded.org?ref=anki
Keywords: Hemoglobin-oxygen binding flashcards, medical flashcards, NEET PG preparation, USMLE Step 1 flashcards, Anki alternative, spaced repetition medical, OnCourse flashcards
Hemoglobin-oxygen binding Flashcards for USMLE
Study 10 flashcards on Hemoglobin-oxygen binding for USMLE Physiology. These active recall cards cover the key concepts, clinical associations, and high-yield facts from this chapter of Gas exchange. Each card is designed to test your understanding rather than just recognition, building stronger and more durable memories for exam day.
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