Recent Lessons

Show all results for ""

Feature Overview

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

Quizzes

Create quizzes and tests automatically from your content using AI.

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

Search...

13 Questions

0 Views

Hypoxic damage to the heart

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

Which of the following is the correct definition of ischaemia?

Inadequate blood supply to an organ or part of it (correct)

Death of a tissue due to excessive blood supply

Inadequate blood supply to a tissue resulting in tissue death

Death of a tissue due to insufficient blood supply

What is the main cause of cell injury and cell death in hypoxia?

Swelling of endoplasmic reticulum

Reduced protein synthesis

Accumulation of lactic acid

Failure of oxidative phosphorylation (correct)

What is the effect of malfunctioning Na+/K+ pump in hypoxic damage?

Accumulation of calcium in the cytosol

Increased anaerobic glycolysis

Reduced protein synthesis

Cell swelling and dilation of endoplasmic reticulum (correct)

Which of the following is a consequence of shift from aerobic to anaerobic respiration in hypoxic damage?

Accumulation of lactic acid Signup and view all the answers

What happens to intracellular pH levels in hypoxic damage?

It drops to levels where enzymes cannot function Signup and view all the answers

What is the consequence of malfunctioning Ca2+ pump in hypoxic damage?

Increased mitochondrial membrane permeability Signup and view all the answers

What is the ultimate result of hypoxic damage to mitochondrial and lysosomal membranes?

Irreversible damage Signup and view all the answers

Which organelle is involved in the release of lysosomal enzymes and reactive oxygen species during cell destruction?

Mitochondrion Signup and view all the answers

What is the consequence of hypoxia and ischemia on the smooth ER?

ER swelling Signup and view all the answers

Which process is enhanced in hypoxia and ischemia, leading to an increase in lactic acid production?

Anaerobic glycolysis Signup and view all the answers

Which ion experiences an influx in hypoxia and ischemia?

Ca2+ Signup and view all the answers

What is the primary effect of hypoxia and ischemia on the cell membrane?

Disruption of membrane and cytoskeletal proteins Signup and view all the answers

Which of the following is a consequence of hypoxia and ischemia on ATP production?

Decreased ATP production Signup and view all the answers