A Tae Kwon Do (TKD) master is applying downward pressure just above the elbow joint on an attacker who immediately collapses to the ground
The TKD master knows the elbow joint can bend inward toward the body but not in the opposite direction. Which of the following reflexes is applicable to this example?
A)
Knife-clasp
B)
Withdrawal
C)
Myotatic
D)
Inverse myotatic
Ans:
D
Feedback:
The inverse myotatic reflex is demonstrated in this example; when too much pressure is applied to the arm and tension reaches a certain level, the Golgi tendon "relaxes." Since the arm bar is being held, the only way the body can "reflex" is by going down toward the ground, making the attacker fall downward. In persons with spastic paralysis, the inverse myotatic reflex becomes hyperactive and produces what is called the clasp-knife reaction. The withdrawal reflex is stimulated by a damaging (nociceptive) stimulus and quickly moves the body part away from the offending stimulus, usually by flexing a limb part. The myotatic or stretch reflex controls muscle tone and helps maintain posture.
You might also like to view...
A nurse is caring for a patient with Wernicke's aphasia. While communicating with the patient, the nurse should do which of the following? Select all that apply
1. Speak slowly. 2. Use long sentences. 3. Ask yes-or-no questions. 4. Avoid interrupting the patient. 5. Speak in a normal tone of voice.
The nurse administers a vaginal suppository. What information should the nurse include in patient teaching about postadministration care?
a. Use a tampon to hold the suppository in place. b. Place a perineal pad in her underpants when getting up. c. Expect a moderate localized burning and itching. d. Remain in the semi-Fowler's position for 2 hours.
Which of the following represents appropriate feedback for an assignment to an LPN?
a. "Did you understand the assignment that you received in the staff report?" b. "Have you completed the urinary cathete-rization and care of the new patient?" c. "The patient in Room 430 looks much better, and you did a good job of making the patient comfortable.". d. "I know you are busy; however, you need to get caught up with your pain medica-tions.".
A nurse is assisting a client with shaving. Which step is appropriate when assisting the client in shaving?
A) Rub the area to make it dry after shaving. B) Hold the skin lightly while making strokes. C) Apply shaving cream if the client wishes. D) Move razor against direction of hair growth.