Question

Answer all

89. Which of the following IS NOT a sympathetic prevertebral ganglion? A. superior mesenteric B. superior cervical C. inferior mesenteric D. celiac E. none of these (they ALL are) 90. Blood flow leaving the left ventricle that supplies the left ventricle itself could course through any of the following except the before reaching the right atrium: A coronary circumflex artery B. posterior interventricular artery C. marginal artery D. coronary sinus E. middle cardiac vein 91. Gray rami communicans are formed by the axons of neurons that are part of the autonomic nervous system. Which of the following is TRUE regarding gray rami? A. they can be found at all spinal levels B. they are sympathetic preganglionic fibers C. they are myelinated D. they are axons of neurons located within the lateral horn of the spinal cord (between T1-L2) E. more than one of the above 92. Which of the following statements is FALSE? A. the most lateral muscle comprising the erector spinae group is known as the illocostalis B. the biceps tendon is located in the cubital fossa C- the brachioradialis is innervated by the musculocutaneous nerve D. the sartorius forms the lateral border of the femoral triangle E. the extensor hallucis longus can invert the foot 93. During a physical exam, a physician asks you to take a deep breath, then turn your head to the left, and cough. Which of the following muscles did NOT help to accomplish at least 1 of these 3 actions? A internal abdominal obliques B. external intercostals C. diaphragm D. left sternocleidomastoid E. more than one of the above 94. Which statement concerning the mesencephalon is FALSE? A contains descending motor fibers within the cerebral peduncle B. contains the Edinger-Westphal nucleus- C. contains the oculomotor complex nucleus D. contains pigmented dopamine-containing neurons E. none of the above (they are all true statements) 95. Which statement is FALSE? A the coracoclavicular ligament has 2 component parts B. the inguinal ligament develops from the aponeurosis of the external abdominal oblique muscle C. the falx cerebri separates the cerebral hemispheres n corpuscles mediate temperature sensation E. the lateral pterygoid depresses the mandible 96. Baroreceptors and chemoreceptors are located A in the heart B. at the junction of the internal and external carotid arteries C. in the lungs D. at the junction of the brachiocephalic and internal jugular veins E. in the medulla of the brainstem~

Answer 1

• 89) E ( as all of the following are sympathetic prevertebral ganglion)
• 90) A (coronary circumflex artery suppies mostly the left atrium)
• 91) A (they can be found at all spinal level)
• 92) C ( brachioradialis is innervated by radial nerve)
• 93) A ( internal abdominal oblique )
• 94) E ( all the statements are true)
• 95) D ( pacinian corpuscles are responsible for vibration and pressure sensation not for temperature)

96) B ( baroreceptor and chemoreceptors are present at the junction of internal and external carotid artery)