WebAn alveolar duct is a tube composed of smooth muscle and connective tissue, which opens into a cluster of alveoli. An alveolus is one of the many small, grape-like sacs that are … Web-the terminal portions of the respiratory zone, called alveolar sacs, are grape-like clusters of alveoli surrounded by pulmonary capillaries-this junction is where pulmonary gas exchange takes place ... -the structure of the alveolar sacs creates a huge surface area (around 1,000 square feet on average)

Alveolar sac anatomy Britannica

WebAn alveolar duct is a tube composed of smooth muscle and connective tissue, which opens into a cluster of alveoli. An alveolus is one of the many small, grape-like sacs that are … WebMay 12, 2024 · An alveolar duct is a tube composed of smooth muscle and connective tissue, which opens into a cluster of alveoli. An alveolus is one of the many small, grape … iowagirleats easy chicken and rice soup

Organs and Structures of the Respiratory System - Course Hero

WebA.The area located posterior to the nasal cavity. B.Series of highly branching passages that conducts air to the structures for gas exchange. C.Attachment of a muscle that generally remains fixed during muscular contraction. D.Cartilage-framed region of the respiratory tract within the neck that houses the vocal cords. WebThe Canes. On mature grapevines, the trunk has arms which sprout the shoot tips that turn into canes. On younger vines, the shoot tips sprout off the trunk. As the shoot grows, it … WebFigure 4. Terminal bronchioles are connected by respiratory bronchioles to alveolar ducts and alveolar sacs. Each alveolar sac contains 20 to 30 spherical alveoli and has the appearance of a bunch of grapes. Air flows into the atrium of the alveolar sac, then circulates into alveoli where gas exchange occurs with the capillaries. iowa girl eats macaroni and cheese