NASM-CPT (7th Edition) Chapter 6 Exam Questions with Verified Answers

Cardiorespiratory System - Answers-A system of the body composed of the heart, blood, blood vessels, lungs, and airways. Cardiovascular System - Answers-A system of the body, also known as the circulatory system, that transports blood to tissues of the body. Thoracic Cavity - Answers-Chamber within the chest that contains the heart and lungs. Mediastinum - Answers-The space in the chest between the lungs that contains all the internal organs of the chest (e.g., heart, esophagus) except the lungs. Cardiac Muscle - Answers-Muscle of the heart. Skeletal Muscle - Answers-The type of muscle tissue that connects to bones and generates the forces that create movement. Smoothe Muscle - Answers-An involuntary nonstriated muscle type that is found in organs. Myofibrils - Answers-The contractile components of a muscle cell; the myofilaments (actin and myosin) are contained within. Sarcomere - Answers-The structural unit of a myofibril, composed of actin and myosin filaments between two Z-lines. Atrium (Atria) - Answers-Superior chamber(s) of the heart that gathers blood returning to the heart. Ventricle - Answers-Inferior chamber of the heart that pumps blood to the lungs and body. Pulmonic Side Of The Heart - Answers-Right side of the heart is the pulmonic side because it receives blood from the body that is low in oxygen and high in carbon dioxide —often referred to as deoxygenated blood. The deoxygenated blood is then pumped to the lungs to be saturated with oxygen. Systemic Side Of The Heart - Answers-The left side of the heart because it has received oxygenated blood from the lungs that is high in oxygen and low in carbon dioxide, which it then pumps out to the rest of the body.