Explain the difference between isometric and isotonic contractions. How are both important to normal body movements?
What will be an ideal response?
Isometric contractions occur when there is a change in muscle
tone but no change in muscle size or length. Isotonic contractions occur when there is a
change in muscle size or length but no change in tone. Depending on what motion is
required, both types of contractions work together to move the body.
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Spinal nerves extend from the spinal cord, whereas ________ nerves extend from the brain
Fill in the blank with correct word.
________ is an autoimmune disorder in which the joint tissues are attacked by the patient's own immune system.
A. Rheumatoid arthritis B. Osteoporosis C. Osteoarthritis D. Osteomyelitis
The epiglottis opens the glottis during the swallowing reflex
Indicate whether the statement is true or false
Emulsification
A. converts small lipid droplets into larger droplets. B. occurs in the gallbladder. C. chemically digests lipids. D. increases surface area for lipid digestion. E. involves enzymes.