Internal respiration occurs in which anatomical site?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Prepare for the Anatomy and Physiology CFE Exam with our comprehensive quiz that covers key topics through flashcards and multiple choice questions. Study effectively and enhance your knowledge to succeed!

Multiple Choice

Internal respiration occurs in which anatomical site?

Explanation:
Internal respiration is the gas exchange between blood and body tissues, occurring mainly across the walls of systemic capillaries. Oxygen diffuses from the blood into surrounding cells to fuel metabolism, while carbon dioxide diffuses from those cells into the blood to be carried away. The capillary-tissue interface is thin and highly perfused, making diffusion efficient so tissues get the oxygen they need and CO2 is removed. In contrast, the lungs and alveoli handle external respiration—the exchange of gases between air and blood—while the trachea is just an airway and does not participate in gas exchange.

Internal respiration is the gas exchange between blood and body tissues, occurring mainly across the walls of systemic capillaries. Oxygen diffuses from the blood into surrounding cells to fuel metabolism, while carbon dioxide diffuses from those cells into the blood to be carried away. The capillary-tissue interface is thin and highly perfused, making diffusion efficient so tissues get the oxygen they need and CO2 is removed. In contrast, the lungs and alveoli handle external respiration—the exchange of gases between air and blood—while the trachea is just an airway and does not participate in gas exchange.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy