Use the figure to match the following.Drag the appropriate labels to their respective targets.TracheaCarina of tracheaPharynxMain (primary)bronchusLarynxSubmitRequest AnswerRight lungLeft lungDiaphragmResetHelp

The human respiratory system is a sophisticated biological system that helps the body and the outside environment exchange gases. Its main job is to absorb oxygen from the surrounding environment and release carbon dioxide, a waste product of cellular metabolism . The respiratory system and circulatory system collaborate to guarantee that carbon dioxide is expelled from the body and oxygen is delivered to the tissues.Organs of the Respiratory System:Nose and Nasal Cavity: As air enters the body through the nose, it is filtered, moistened, and heated to initiate the process of respiration.Pharynx: The pharynx, sometimes referred to as the throat, is a common passageway for food and air.Larynx: Speech production is aided by the larynx, which also houses the vocal cords.Trachea: The tube that connects the larynx to the bronchi is called the trachea, also known as the windpipe.The trachea is divided into two bronchi, each of which leads to a single lung.Smaller bronchioles branch off from the larger bronchi, and these bronchioles ultimately lead to alveoli, which are tiny air sacs.Alveoli: Gas exchange takes place in these tiny air sacs. While carbon dioxide travels from the blood to the alveoli for exhalation, oxygen from the air diffuses into the bloodstream.RESPIRATORY MUSCLES:1. The diaphragm is a dome-shaped muscle located beneath the lungs that helps with inhalation and exhalation by contracting and relaxing to alter the volume of the thoracic cavity.2..Intercostal Muscles: During breathing, the muscles located in between the ribs help to expand and contract the chest.The rhythmic process of inhaling and exhaling is the breathing mechanism, also referred to as ventilation, and it facilitates the exchange of gases (oxygen and carbon dioxide) between the body and the surrounding environment. The respiratory muscles, respiratory passages, and brain control centers are the main parts of the breathing mechanism.On inspiration (inhalation), the diaphragm contracts and the ribs are raised by the intercostal muscles, expanding the thoracic cavity's volume. The lungs fill with air as a result of this pressure drop.The diaphragm relaxes and the rib cage returns to its resting position during expiration {exhalation}, which reduces the volume of the thoracic cavity. The lungs are forced to expel air due to this pressure increase.Gas Exchange: During inhalation, oxygen-rich air diffuses past the alveolar membranes and binds to hemoglobin in red blood cells to enter the bloodstream.Cell waste called carbon dioxide travels from the bloodstream into the alveoli and is released during expiration..Regulation of Respiration: The brain's respiratory center, which is mainly composed of the medulla oblongata and pons, controls breathing in response to variations in blood oxygen and carbon dioxide concentrations.The respiratory system is essential for maintaining life because it eliminates carbon dioxide and supplies oxygen for cellular metabolism. It supports overall homeostasis and preserves gas balance by interacting harmoniously with other bodily systems.

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Anatomy and Physiology

Trachea Carina of trachea Pharynx Main (primary) bronchus Larynx Submit Request Answer Right lung Left lung Diaphragm

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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