Doctor Johansson wants to test a patient's reflexes by briskly striking the patellar tendon with a reflex hammer. Which reflex is Dr. Johansson testing?
A. Crossed extensor reflex
B. Reciprocal innervation
C. Withdrawal reflex
D. Knee-jerk reflex
E. Golgi tendon reflex
Answer: D
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Answer the following statements true (T) or false (F)
1. Sebaceous glands produce an oil for skin called sebum 2. Apocrine glands are distributed over almost the entire body surface. 3. Eccrine glands produce a watery liquid. 4. Apocrine glands produce a thicker liquid than do eccrine glands. 5. Eccrine glands are concentrated in the axillae and the genital area.
One of the major physiological factors that triggers thirst is ________
A) becoming overly agitated B) a rise in plasma osmolality C) drinking caffeinated beverages D) a dry mouth from high temperatures
Diabetes mellitus produces many homeostatic imbalances, including acidosis. The pH imbalance is due to ketoacidosis, which results from excessive accumulation of by-products of fat metabolism, as the body cannot meet energy needs from carbohydrate metabolism. Sally is a teenaged diabetic who sometimes rebels by not taking her insulin. Her mother takes her to the hospital because her breathing has
become deep and gasping. Explain Sally's breathing pattern. What other compensatory responses may occur, and would they occur earlier or later than the respiratory response? What will be an ideal response?
Which of the following is composed of myosin molecules?
A. I bands B. Z disks C. Thick myofilaments D. Sarcolemma E. Tropomyosin