Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Textbook Question
Chapter 10, Problem 1CCS
In Chapters 7 and 8, you were introduced to Kayla Tanner, a 45-year-old mother of four who had suffered a dislocated right hip in the bus accidenton Route 91. Six weeks after the injury, Mrs. Tanner reported that she was still unable to walk or run without hip pain, and had weakness in her hip, knee, and ankle. Mrs. Tanner walked with a limp that her doctors attributed to weaknesses in flexion at the knee, inversion of the foot, and plantar flexion.
Electromyography (which measures muscle electrical activity) and nerve conduction studies (which measure the speed of nerve impulses) revealed that Mrs. Tanner’s sciatic nerve had been damaged as a result of her injuries—most likely as a result of the nerve being compressed when the hip was dislocated. This large nerve innervates a large number of lower limb muscles. Since her surgery, Mrs. Tanner has been undergoing intense physical therapy and has shown significant improvement.
During her initial visit with the physical therapist, Mrs. Tanner presented with significant “foot drop” (the inability to dorsiflex the foot when taking a step). Mrs. Tanner was asked to perform a variety of movements with her right lower extremity. The therapist focused her attention on the prime movers and synergists of the hip, knee, and ankle. What are “prime movers” and “synergists”?
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Chapter 10 Solutions
Anatomy & Physiology
Ch. 10 - The term prime mover is used in the business world...Ch. 10 - What criteria are used in naming each of the...Ch. 10 - Prob. 3CYUCh. 10 - Which of the three lever systems involved in...Ch. 10 - What benefit is provided by a lever that operates...Ch. 10 -
6. As John listened to Roger’s account of how he...Ch. 10 - What muscles would you contract to make a sad...Ch. 10 - How can the deltoid muscles both extend and flex...Ch. 10 - Which of the thenar muscles does not have an...Ch. 10 - A muscle that assists an agonist by causing a like...
Ch. 10 - The arrangement of muscle fibers in which the...Ch. 10 - Match the muscle names in column B to the facial...Ch. 10 - The prime mover of inspiration is the (a)...Ch. 10 - The arm muscle that both flexes the elbow and...Ch. 10 - The chewing muscles that protract the mandible and...Ch. 10 - Muscles that depress the hyoid bone and larynx...Ch. 10 - Intrinsic muscles of the back that promote...Ch. 10 - Several muscles act to move and/or stabilize the...Ch. 10 - The quadriceps include all but (a)...Ch. 10 - A prime mover of hip flexion is the (a) rectus...Ch. 10 - The prime mover of hip extension against...Ch. 10 - Muscles that cause plantar flexion include all but...Ch. 10 - In walking, which two lower limb muscles keep the...Ch. 10 - Prob. 15RQCh. 10 - Which of the following is large, deep muscle that...Ch. 10 - Name four criteria used in naming muscles, and...Ch. 10 - Differentiate between the arrangement of elements...Ch. 10 - What does it mean when we say that a lever...Ch. 10 - Which muscles act to propel food down the length...Ch. 10 - Name and describe the action of muscles used to...Ch. 10 - (a) Name the four muscle pairs that act in unison...Ch. 10 - List all six possible movements that can occur at...Ch. 10 - (a) Name two forearm muscles that are powerful...Ch. 10 - Name the muscles usually grouped together as the...Ch. 10 - Name three thigh muscles that help you keep your...Ch. 10 - (a) Name three muscles or muscle groups used as...Ch. 10 - Name two muscles in each of the following...Ch. 10 -
In Chapters 7 and 8, you were introduced to Kayla...Ch. 10 - In Chapters 7 and 8, you were introduced to Kayla...Ch. 10 - Prob. 3CCSCh. 10 - Prob. 4CCS
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