45-Year-Old Female with Motor Nerve Damage
In Chapters 7 and 8, you met Kayla Tanner, who suffered a dislocated right hip in a car accident. Six weeks later, Mrs. Tanner was still unable to walk or run without hip pain, and had weakness in flexion at the knee, excessive foot inversion and plantar flexion, and significant “foot drop” (the inability to dorsiflex the foot).
Electromyography (measurement of muscle electrical activity) and nerve conduction studies (measurement of the speed of nerve impulses) revealed sciatic nerve damage, most likely a result of the nerve being compressed when the hip was dislocated. This large nerve innervates many lower limb muscles. Since her surgery, Mrs. Tanner has been undergoing intense physical therapy and has shown significant improvement.
2. To assess the function and strength of a specific muscle, a physical therapist will often apply resistance (push against the moving limb) to mimic the action of an antagonist muscle. What is an antagonist muscle, and why would the therapist mimic its action?
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HUMAN ANAT.+PHYS.(LL)-W/LAB.MAN.+ACCESS
- Given the following diseases/conditions, relate them to the events that take place in the neuromuscular junction. Identify the specific cause and the pathologic manifestations of such conditions. Myasthenia gravis Lambert-Eaton Syndrome Neuromyotonia 2. In 3-4 sentences compare and contrast the various types of muscle contraction (See attached picture) and be able to give at least an example for each. What type of contraction causes change in length of muscle fibers? Which type does not result to movement?arrow_forwardThe biceps reflex tests a muscle spindle reflex arc (like the patellar reflex). The biceps brachii is innervated by the musculocutaneous nerve and the triceps brachii is innervated by the radial nerve. When the biceps tendon is tapped with a hammer, action potential generation ___________ in the musculocutaneous nerve and _____________ in the radial nerve. Select one: a. Increases; decreases b. Decreases; increases c. Decreases; decreases d. Increases; increasesarrow_forward27-year-old male patient who works with his hands doing heavy mechanic jobs everyday comes in. Chief Complaints of intermittent pain on thenar muscle. When asked to oppose his fingers (thumb to other fingers) he is able to do so. But when he touches his middle and ring finger, a pain radiates laterally from ulnar nerve to where medial epicondyle is located. Tests for carpal tunnel were negative. There is no loss of sensation as stated by patient. What could be wrong with this patient? Step by step please and detailed SOLUTION OF all parts Wrong answer and copied answer gives u downvote So please don't copy from chergg or other internet sitearrow_forward
- A patient demonstrates 0 (absent) DTR of the right triceps brachii, paresthesia over the right third digit and 3/5 strength during resisted elbow extension and wrist flexion testing. What is the most likely diagnosis? What are common types of treatment for this condition?arrow_forwardSpasticity of the paralyzed muscles in UMN lesions is associated with :-a- inhibition of tendon jerksb- remarkable wasting of the musclec- clonusd- non of the abovearrow_forward31. ________________ recapitulate the processes of skeletal muscle myogenesis. dentric cells none are correct glial cells satellite cellsarrow_forward
- A nine-year-old child is brought to the physician by his parents due to clumsiness and multiple falls over the past 4 months. When standing up from a lying position, he crawls onto his knees and slowly walks himself up with his hands. On physical examination there is bilateral calf enlargement. Which of the following features is most likely to be seen on evaluation of a calf biopsy? Answers A-D A Degeneration of muscle fibers with fibrofatty replacement B Necrotic muscle fibers with lymphocyte infiltration C Perivascular inflammation with muscle fiber atrophy D Proliferation of mitochondria within the muscle fibers O O Oarrow_forward18:1V docs.google.com/forms Which of the following has some ?nerve supply from the radial nerve coracobrachialis brachialis long head of biceps short head of biceps Which muscle does not insert in or next to the intertubecular groove of * ?the upper humerus teres major latissimus dorsi pectoralis major pectoralis minor > IIarrow_forwardMatching between Column I and corresponding definition or function in column II ( please answer all of them ) : Ans Column I Column II Ca binds to calmodulin 1. Binds calcium in skeletal muscle cells Ca binds to troponin 2. Occurs in smooth muscles only Type II muscle fibers 3. Is the primary source of Ca that drives muscle contraction Troponin 4. depend on glycolysis as a source of energy H zone 5. Anchors thin filaments together Z line 6. sheath of connective tissue surrounds a bundle of muscle fibres Sarcomere 7. The region of thick filaments that has no overlap with thin filaments Actin and myosin 8. Is the functional unit of skeletal muscle Perimysium 9. Occurs in skeletal and cardiac muscles Sarcoplasmic reticulum 10. Generate the mechanical force of a muscle through…arrow_forward
- ANATOMY question (not a medical school course) “Ron (he/his) is a 60-year-old man is experiencing right shoulder pain after falling off of a ladder 3 days ago while cleaning out the eavestrough gutters of his home. The man was brought to the hospital by his wife and is presenting with localized swelling, weakness, decreased range of motion, and has pain on palpation of the anterior right shoulder. His pain is increased when he tries to activate the shoulder by initiating external rotation and abduction. The man’s major complaint is that he is unable to comb his hair and brush his teeth without pain as he cannot maintain his arm in an elevated position for more than a few seconds. At the hospital, the doctor ordered an x-ray and gave him an injection of local anesthetic. The x-ray did not show any significant findings and the anesthetic relieved his pain but did not help with the weakness.” Explain the effects of the management plan for this rotator cuff tear. From themanagement…arrow_forwardRole of tetanus in normal muscle action.short answer asaparrow_forwardwhat muscle or muscles may be strained if a patient complains of pain of the following locations: Medial thigh anterior arm posterior neck lateral abdomen posterolateral leg lateral lumbar region of the backarrow_forward
- Medical Terminology for Health Professions, Spira...Health & NutritionISBN:9781305634350Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. SchroederPublisher:Cengage Learning