AAOS EMT Eleventh Edition Chapter 6 The Human Body 2023 fully solved

AAOS EMT Eleventh Edition Chapter 6 The Human BodyThe ____________ is a muscular dome that forms the inferior boundary of the thorax, separating the thorax from the abdomen. A. diaphragm B. costovertebral angle C. costal arch D. mediastinum - correct answer diaphragm The brain connects to the spinal cord through a large opening at the base of the skull called the: A. foramen ovale. B. foramen magnum. C. vertebral foramen. D. spinous foramen. - correct answer foramen magnum. Which of the following structures does NOT contain smooth muscle? A. Blood vessels B. Skeletal system C. Urinary system D. Gastrointestinal tract - correct answer Skeletal system A by-product of involuntary muscle contraction and relaxation is: A. lactic acid. B. oxygen. C. nitrogen. D. heat. - correct answer heat. If a patient's chest barely moves during inhalation, even if the patient's respiratory rate is normal, you should suspect that: A. inspiratory reserve is increased. B. expiratory reserve volume is decreased. C. overall tidal volume is increased. D. minute volume is decreased. - correct answer minute volume is decreased. What happens when blood volume is lost from the body? A. The arteries contract to increase the blood pressure. B. Widespread vasodilation causes blood pressure to decrease. C. The veins dilate to increase systemic perfusion. D. Arterial blood is diverted to the skin and muscles. - correct answer The arteries contract to increase the blood pressure. A patient has a blood pressure of 130/70 mm Hg. The "130" in this measurement represents: A. ventricular contraction. B. ventricular filling. C. ventricular relaxation. D. atrial contraction. - correct answer ventricular contraction. The central nervous system is composed of the: A. spinal cord and sensory nerves. B. brain and spinal cord. C. brain and sensory nerves. D. motor and sensory nerves. - correct answer brain and spinal cord. Which of the following is NOT a function of the skin? A. Pressure and pain perception B. Temperature regulation