Anatomy & Physiology Respiratory #4

Question

Which structure of the lower respiratory tract receives inspired air from the larynx and moves it into the lungs?

Answers

  1. Lung
    • Rationale:

      The lung is a respiratory structure located in the thoracic space. The major role of the lungs is oxygenation of the body.

  2. Alveoli
    • Rationale:

      The alveoli are the air sacs in the lungs. This is the location where gas exchange occurs.

  3. Trachea
    • Rationale:

      The trachea, or windpipe connects the pharynx to the larynx. The trachea is an important structure of the body as its function is the provision of air flow to and from the lungs.

  4. Bronchi
    • Rationale:

      The bronchi is the structure of the lower respiratory tract that receives inspired air from the larynx and moves it into the lungs.

Overview

The respiratory system is divided into the upper and the lower respiratory tracts.

Explanation

Learning Outcomes

The lower respiratory system, or tract, includes the alveoli, the bronchi, the bronchioles, the lungs, and the trachea. The bronchi branch off into smaller structures until reaching the alveoli. The bronchus functions primarily as a passageway for air; however, it also plays a role in immune function.

Test Taking Tip

Think about the function of each structure when determining the correct choice for this question.

Video Rationale