Understanding the Human Respiratory System: Anatomy, Functions, and Importance
The human respiratory system plays a vital role in gas exchange and maintaining overall health. This article delves into the anatomy of the respiratory system, its main functions, such as gas exchange and air filtration, and the importance of respiratory health. Learn about the different components, from the airways to the lungs, and how they work together to ensure proper respiration and oxygenation of the body.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. Download presentation by click this link. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
E N D
Presentation Transcript
Human Respiratory System Part 2 December 2021 Dr. Anna Haro Westside HS
LEARNING Objectives TEKS: 130.231.(c)(1)(A, & B) and 130.231.(c)(2)(A, B, C, F, & G) & (3)(B) Students will apply knowledge of human and cellular biology. Students will develop knowledge of the anatomy and physiology of the human respiratory system. Students will compare the different parts of the airways. Students will evaluate the parts and function of the bronchial tree.
Objetivos de aprendizaje TEKS: 130.231.(c)(1)(A, & B) and 130.231.(c)(2)(A, B, C, F, & G) & (3)(B) . Los estudiantes aplicar n conocimientos de biolog a humana y celular. Los estudiantes desarrollar n el conocimiento de la anatom a y fisiolog a del sistema respiratorio humano. Los estudiantes comparar n las diferentes partes de las v as respiratorias. Los estudiantes evaluar n las partes y la funci n del rbol bronquial.
Human respiratory system The main function of the human respiratory system is gas- ______________. Respiratory events include: The movement of air in and out of the lungs, commonly called breathing or ventilation. The exchange of gas between the lungs and blood (external respiration). The exchange of gases between the blood and body cells (internal respiration). The oxygen utilization and CO2 production (cellular respiration).
Other physiologic functions of the Respiratory System The respiratory system: 1. Allows the patient to talk and to _______________. 2. Warms air to match the body temperature and moisturizes it to the humidity level the body needs. 3. _______________ the airways from harmful substances and irritants. 4. Respiration is both macroscopic and microscopic explain what this means.
Human Respiratory System Image from: https://www.h owtorelief.com /respiratory- system-parts- function/ Which lung is larger and why?
What is the anatomy of the human respiratory system? Many different components (organs and tissues) comprise the respiratory system. Start with the airways: 1. Mouth and nose: Openings that pull air from outside your body into your respiratory system. Internal hairs in the nostrils begin to ______________ inhaled air. 2. Nasal cavity is the hollow space behind the nose. This transports air to the pharynx, and the mucous lining helps to filter, warm, and moisten the incoming air. 3. Sinuses: Hollow areas between the bones in your head that help regulate the temperature and humidity of the air you inhale. Also reduces the weight of the skull and adds resonance to voice. 4. Pharynx (throat): Tube that delivers air from your mouth and nose to the trachea (windpipe), which distinguishes air from food/drink entering your esophagus. Located ___________ to the oral cavity and __________ the nasal cavity and larynx.
What is the anatomy of the human respiratory system? 5. Larynx: this is the voicebox and is an enlarged area superior to the trachea. It is the passageway for air and prevents foreign material from entering the lungs and contains the vocal cords. 6. Trachea or the windpipe : Flexible tube and passageway connecting your throat and lungs, specifically the larynx to the _____________ tree. 7. Bronchial tree: Beginning with the bronchial tubes, located at the bottom of your trachea, connecting into the branches of each lung and leading to the alveoli. 8. Lungs: The soft, cone-shaped organs occupying the thoracic cavity (along with the heart), which remove oxygen from air and pass it into your bloodstream. The lungs contain the bronchial tree, the alveoli, blood vessels, connective tissue, lymphatic vessels, and the nerves of the lower respiratory tract.
The bronchial tree The bronchial tree is the respiratory structure which delivers external air from the trachea to the microscopic air sacs (alveoli) within the lungs where gas exchange and diffusion begins. The trachea this is the trunk of the tree where the two main branches first diverge at the carina. The primary left bronchus and the primary right bronchus are the two main branches leading to the left and right lung respectively. Note, the right primary bronchus is more vertical vs. the horizontal position of the left. The secondary (right) lobar bronchi and the secondary (left) lobar bronchi branch off from the primary into the right and left lobes respectively. There are __________ secondary right lobar bronchi and __________ secondary left lobar bronchi. One bronchus ends in us if more than one, then they are bronchi.
The bronchial tree The third level are the tertiary segmental bronchi. There are usually ten bronchial segments in the right lung and eight in the left lung. The next level are the intralobular bronchioles, and these are the much smaller branches, also called the bronchioles or lobules. The fifth level are the terminal bronchioles, with approximately 50 (left) to 80 (right) terminal bronchioles in the lobule of each lung. The sixth level are the respiratory bronchioles with two branching off from each terminal bronchiole. Then, about 2 to 10 alveolar ducts branch from the respiratory bronchioles.
The bronchial tree The 8th level are the alveolar sacs these are thin-walled and closely- packed outpouches of the alveolar ducts. Finally, the alveolus or many alveoli are thin- walled, and microscopic air sacs that open to an alveolar sac. Air can diffuse freely from the duct to the sac to the alveoli. Image from: https://study.com/acade my/lesson/alveolar-ducts- function-definition.html
What are your questions about the respiratory system? Please ask, email, use Remind, or TEAMS. Remember the HON-code? https://www.hon.ch/HONcode/. Even if you cannot find the HON-code stamp, please use the principles of website evaluation. Authority, confidentiality, complementary, attribution, justification, transparency, financial disclosure, and advertising policy (HON-code, 2019).
References https://my.clevelandclinic.org/health/articles/21205- respiratory-system https://www.howtorelief.com/respiratory-system- parts-function/ Shier D, Butler J, Lewis R. Hole s Human Anatomy and Physiology, 9th edition. 2003. https://study.com/academy/lesson/alveolar-ducts- function-definition.html
