HUMAN BIOLOGY

the MUSCULar SYSteM 115 is life-threatening. The bacterial toxin travels to the spinal cord, where it blocks nervous system sign ...

116 Chapter 6 FOCUS ON HEALTH making the most of muscles Muscle cells adapt to the activity demanded of them. When severe nerve ...

the MUSCULar SYSteM 117 muscle tissue and the muscular system The muscular system works with the skeleton to bring about body mo ...

Tendons connect skeletal muscle to bones. The origin end of a muscle attaches to the bone that moves least during a movement. Th ...

THE MUSCULAR SYSTEM 119 Review Questions In a general sense, how do skeletal muscles produce movement? In the diagram below, la ...

120 Chapter 6 Nerve impulses first stimulate a skeletal muscle fiber at . a. T tubules c. neuromuscular junctions b. sarcomeres ...

This chapter discusses cardiac muscle (4.3) and the junctions between cardiac muscle cells (4.6). Blood vessels are built from l ...

122 Chapter 7 the Cardiovascular system: Moving blood through the body n The cardiovascular system is built to rapidly transport ...

CirCulation: the heart and blood vessels 123 What is the cardiovascular system? The cardiovascular system consists of the heart ...

124 Chapter 7 aortic valve Valve that opens from the left ventricle into the aorta. atrioventricular valve Valve through which b ...

CirCulation: the heart and blood vessels 125 hoW does the heart pump blood? The heart works as a double pump, with each half di ...

126 Chapter 7 aorta Artery carrying blood pumped by the left ventricle (to the systemic circulation). coronary circulation Arter ...

CirCulation: the heart and blood vessels 127 Jose Luis Pelaez, Inc./Bridge/Corbis What are the tWo circuits in Which blood floWs ...

128 Chapter 7 right atrium left atrium left ventricle Sinoatrial (SA) node Bundle of conducting muscle fibers right ventricle Pu ...

circulation: the heart and blood vessels 129 What is blood pressure? Blood pressure is the fluid pressure blood exerts against ...

130 Chapter 7 structure and Functions of blood vessels cycle is stored in the “bulge”; the elastic recoil of the artery then for ...

CirCulation: the heart and blood vessels 131 hoW does a blood vessel’s structure suit its particular function in the cardiovascu ...

132 Chapter 7 In the condition called telangiectasia, capillaries, arterioles, or veins show up on the body surface as “spider v ...

CirCulation: the heart and blood vessels 133 precapillary sphincter A ring of smooth muscle that regulates the flow of blood int ...

134 Chapter 7 A B Major Cardiovascular disorders (Figure 7.19). Calcium deposits may enter the plaque and harden both it and the ...