KINE 1P90 Lecture 8: Anatomy of the Respiratory System

• School: Brock University
• Department: Physical Education and Kinesiology
• Course: KINE 1P90
• Professor: Nota Klentrou

Document Summary

Difference between the systolic and diastolic pressures. Total peripheral resistance is decreased (it will actually increase) The cells of the body need a continual supply of o2 to support their energy generating chemical reactions. The co2 produced during these reactions must be eliminated from the body at the same rate as produced. The process that cause passive movement of o2 from the atmosphere to the tissues, and the passive movement of co2 from the tissues to the atmosphere. Contractions of this smooth muscle regulates airflow to the lungs. Reflex mechanisms close off the trachea and larynx during swallowing so food and drink does(cid:374)"t e(cid:374)ter the lu(cid:374)gs. The oesophagus stays closed except during swallowing to keep air from entering the stomach while breathing. The trachea and bronchi are rigid tubes encircled by cartilage rings that prevent them from closing. The bronchioles have no cartilage, and contain smooth muscle that is innervated by the autonomic nervous system.