Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Free Tools

Explore our collection of AI-powered tools designed to boost your productivity.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing Schools Business

Features Free Tools Pricing Schools Business

5 Questions

0 Views

Physiology of Oxygen and Heart Rate

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What does a rightward shift in the $O_2$ hemoglobin dissociation curve indicate?

No change in hemoglobin's affinity for $O_2$

Increased affinity of hemoglobin for $O_2$

Decreased affinity of hemoglobin for $O_2$ (correct)

Hemoglobin binds oxygen more effectively

Which condition contributes to a right shift of the $O_2$ Hb dissociation curve?

Lower $CO_2$ partial pressure

Increased oxygen availability

Decreased temperature

Increased acidity (correct)

During what phase is the heart rate (HR) expected to be approximately stable?

During intense physical activity

During recovery

During rest (correct)

During exercise

What happens to heart rate during recovery after exercise?

<p>It gradually decreases to normal (C)</p> Signup and view all the answers

What is indicated by 'plateau as clamped = supply' during exercise?

<p>Oxygen supply remains stable (A)</p> Signup and view all the answers

Flashcards

Bohr Shift

A shift to the right on the oxygen-hemoglobin dissociation curve, indicating reduced affinity of hemoglobin for oxygen. This happens due to increased temperature, acidity, or carbon dioxide partial pressure.

Heart Rate (HR)

The rate at which your heart beats, usually measured in beats per minute (bpm).

Oxygen Supply Clamped

During exercise, oxygen demand increases, and the body's ability to deliver oxygen is limited. This leads to a plateau or leveling off in oxygen supply, despite continued increased demand.