Understanding Physiology Quiz

PDF page 77: The physiological response to exercise is dependent on the environmental conditions, intensity, duration, and frequency of the exercise. During physical exercise, our skeletal muscles experience an increased demand for both oxygen and glucose, as well as a need for metabolic

PDF page 77: The physiological response to exercise is dependent on the environmental conditions, intensity, duration, and frequency of the exercise. During physical exercise, our skeletal muscles experience an increased demand for both oxygen and glucose, as well as a need for metabolic

PDF page 77: The physiological response to exercise is dependent on the environmental conditions, intensity, duration, and frequency of the exercise. During physical exercise, our skeletal muscles experience an increased demand for both oxygen and glucose, as well as a need for metabolic

PDF page 77: waste like carbon dioxide to be removed.

PDF page 77: Movement in the body is produced by muscle tissue. Human beings have three types of muscle tissue: skeletal, cardiac, and smooth. Anatomically, they are all different yet are still involved with the movement. For example, cardiac muscle pumps blood and smooth muscle moves food through our GI tract. Skeletal muscle, however, is responsible for our ability to move in the space around us. Skeletal muscles are made up of muscle cells, also called muscle fibers. Inside the muscle cells, there are microscopic myofibrils that run the length of the muscle fiber. There are three primary types of muscle fibers found in skeletal muscles that are named according to

PDF page 77: Movement in the body is produced by muscle tissue. Human beings have three types of muscle tissue: skeletal, cardiac, and smooth. Anatomically, they are all different yet are still involved with the movement. For example, cardiac muscle pumps blood and smooth muscle moves food through our GI tract. Skeletal muscle, however, is responsible for our ability to move in the space around us. Skeletal muscles are made up of muscle cells, also called muscle fibers. Inside the muscle cells, there are microscopic myofibrils that run the length of the muscle fiber. There are three primary types of muscle fibers found in skeletal muscles that are named according to

PDF page 77: Movement in the body is produced by muscle tissue. Human beings have three types of muscle tissue: skeletal, cardiac, and smooth. Anatomically, they are all different yet are still involved with the movement. For example, cardiac muscle pumps blood and smooth muscle moves food through our GI tract. Skeletal muscle, however, is responsible for our ability to move in the space around us. Skeletal muscles are made up of muscle cells, also called muscle fibers. Inside the muscle cells, there are microscopic myofibrils that run the length of the muscle fiber. There are three primary types of muscle fibers found in skeletal muscles that are named according to

PDF page 77: Movement in the body is produced by muscle tissue. Human beings have three types of muscle tissue: skeletal, cardiac, and smooth. Anatomically, they are all different yet are still involved with the movement. For example, cardiac muscle pumps blood and smooth muscle moves food through our GI tract. Skeletal muscle, however, is responsible for our ability to move in the space around us. Skeletal muscles are made up of muscle cells, also called muscle fibers. Inside the muscle cells, there are microscopic myofibrils that run the length of the muscle fiber. There are three primary types of muscle fibers found in skeletal muscles that are named according to

PDF page 77: 1) how quickly they contract, and 2) how they manufacture ATP. They are slow-twitch oxidative

PDF page 77: 1) how quickly they contract, and 2) how they manufacture ATP. They are slow-twitch oxidative

PDF page 77: (Type I), fast-twitch oxidative (Type IIa), and fast-twitch glycolytic (Type IIb).

PDF page 77: For a basic explanation of their characteristics, we will focus on the Type I vs the Type IIb fibers. Type I fibers are generally smaller in diameter, are fatigue-resistant and have a slower

PDF page 78: The cardiovascular system, whose is composed of the heart and blood vessels and its primary function is to transport oxygenated blood throughout the body to deliver oxygen to our tissues and then transport carbon dioxide to the lungs for elimination from the body. During physical activity, our skeletal muscles experience an increased demand for the exchange of these two key blood gases if they are to function optimally. When a muscle contracts, blood flow is

PDF page 78: The cardiovascular system, whose is composed of the heart and blood vessels and its primary function is to transport oxygenated blood throughout the body to deliver oxygen to our tissues and then transport carbon dioxide to the lungs for elimination from the body. During physical activity, our skeletal muscles experience an increased demand for the exchange of these two key blood gases if they are to function optimally. When a muscle contracts, blood flow is

PDF page 78: restricted briefly until the muscle relaxes and normal blood flow is reestablished.