4162 exam1 sampler

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					     bio4162                                             human anatomy & physiology 2
     exam 1                                                          question sampler

1.   Which of the following forms part of the                     8.   The region on the mediastinal surface of the
     boundary of the thoracic inlet?                                   pleural cavity where the parietal pleura bends
     a. rib 1                                                          onto the visceral surface is called the
     b. body of sternum                                                a. reflection of the pleura
     c. body of vertebra T12                                           b. hilus
     d. clavicle                                                       c. cardiac notch
     e. all are part of the boundary
                                                                  9.   The principal organ in the anterior mediastinum
2.   The diaphragm, separating the thorax from the                     is the
     abdomen, is composed only of muscle.                              a. heart
     Answer {a} if true, {b} if false.                                 b. descending aorta
                                                                       c. thymus
3.   Which of the following would be found at the
                                                                       d. spleen
     level of the sternal angle [of Louis]?
     a. costal cartilage 3                                        10. Which of these is not a component of the
     b. intervertebral disk T4/T5                                     thorax, as we defined it?
     c. the xiphisternal articulation                                 a. the intercostal spaces
     d. all of these                                                  b. body of the sternum
     e. none of these                                                 c. the posterior mediastinum
                                                                      d. pectoralis major m
4.   The aorta passes through the diaphragm at the
     level of vertebra                                            11. How many lobes does the right lung have in the
     a. T4                                                            human?
     b. T8                                                            a. one
     c. T10                                                           b. two
     d. T12                                                           c. three
     e. none of these.                                                d. four
                                                                      e. more
5.   The   trachea lies in the .......... mediastinum.
     a.    superior                                               12. Which of these is not a function of the nasal
     b.    anterior                                                   cavity?
     c.    middle                                                     a. olfaction
     d.    posterior                                                  b. phonation
                                                                      c. speech
6.   The lining of the pleural cavity is the ..........
                                                                      d. humidification of the inspired air
     a. epicardial                                                13. Tonsils are found in the
     b. parietal                                                      a. nasopharynx
     c. endopleural                                                   b. vestibule of the nasal cavity
     d. visceral                                                      c. trachea
                                                                      d. alveolar lining
7.   The fibrous pericardium prevents transient over
     distension of the heart, but it can stretch with             14. The “visceral pericardium”—i.e., the
     time to accommodate chronic heart                                epicardium—is composed of two layers.
     enlargement due to a disease state such as                       Answer {a} if true, {b} if false.
     congestive heart failure.
                                                                  15. A sensory neuron with its cell body in the dorsal
     Answer {a} if true, {b} if false.
                                                                      root ganglion of a spinal nerve belongs to the
                                                                      class of neurons known as .......... neurons.
                                                                      a. bipolar
                                                                      b. pseudounipolar
                                                                      c. multipolar

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16. The   outermost meninx is the                                 25. Almost all sensory input to the brain is
    a.    dura mater                                                  processed in the thalamus before it is [or isn’t]
    b.    arachnoid                                                   relayed to the cerebrum.
    c.    pia mater                                                   Answer {a} if true, {b} if false.
17. Cerebrospinal fluid is secreted by the arachnoid              26. The ridges on the cerebral hemispheres are
    granulations in the superior sagittal sinus.                      called the
    Answer {a} if true, {b} if false.                                 a. gyri
                                                                      b. folia
18. The forebrain originally developed to
                                                                      c. sulci
    accommodate which special sense?
    a. olfaction                                                  27. Blood supply to the brain is via the
    b. vision                                                         a. internal carotid aa
    c. equilibrium                                                    b. vertebral aa
                                                                      c. both of these
19. Which part of the brain deals with the
    coordination of motor function?                               28. The lateral sulcus—the Sylvian
    a. cerebral hemispheres                                           fissure—separates the temporal lobe of the
    b. thalamus                                                       cerebral hemisphere from the occipital lobe.
    c. cerebellum                                                     Answer {a} if true, {b} if false.
    d. reticular formation
                                                                  29. The   basal ganglia are found in the
20. The connecting channel between the third and                      a.    dorsal root of a spinal nerve
    fourth ventricles is the                                          b.    cerebellum
    a. foramen of Magendie                                            c.    cerebrum
    b. sinus of Valsalva                                              d.    paravertebral chain
    c. cerebral aqueduct
                                                                  30. Which of these is not a component of the
    d. hypophyseal infundibulum
                                                                      autonomic nervous system?
21. How many “lobes” are there to each cerebral                       a. vagus n
    hemisphere?                                                       b. cervical spinal nerves
    a. two                                                            c. intrinsic plexus of the gut tube
    b. three                                                          d. cranial nerves
    c. four
                                                                  31. Cerebellar lesions usually result in paralysis.
    d. five
                                                                      Answer {a} if true, {b} if false.
22. Before visual and auditory signals are relayed to
                                                                  32. The interpretation of auditory signals is
    the cerebral cortex, they pass through the
                                                                      performed principally in the cerebral
    a. mesencephalon
                                                                      a. frontal lobe
    b. reticular formation
                                                                      b. temporal lobe
    c. spinal cord nuclei
                                                                      c. occipital lobe
    d. cerebellum
                                                                      d. insula
23. Visual input is rendered into meaningful images
                                                                  33. Tracts of fibers connecting parts of one
    in the .......... lobe of the cerebrum.
                                                                      cerebral hemisphere with corresponding parts
    a. frontal
                                                                      on the opposite cerebral hemisphere are called
    b. temporal
                                                                      .......... tracts.
    c. parietal
                                                                      a. association
    d. occipital
                                                                      b. commissural
24. Which of these is not a part of the circle of                     c. projection
    a. anterior cerebral a
    b. posterior cerebral a
    c. anterior communicating a
    d. basilar a

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34. Cerebrospinal fluid is secreted into the                   42. End-plate potentials (EPPs) are
    ventricular system of the CNS using the                        a. larger than EPSPs
    a. arachnoid granulations                                      b. smaller than EPSPs
    b. choroid plexuses                                            c. of the same magnitude as EPSPs
    c. foramen of Luschka
                                                               43. Which of these poisons irreversibly inhibit
35. What fold of meningeal dura separates the                      acetylcholinesterase (AChE)?
    cerebrum from the cerebellum and houses the                    a. black widow spider venom
    transverse and superior petrosal sinus?                        b. botulinum toxin
    a. falx cerebri                                                c. curare
    b. tentorium cerebelli                                         d. organophosphates
    c. falx cerebelli
                                                               44. Which of these autonomic activities is
    d. diaphragma sellae
                                                                   controlled at the level of spinal reflexes?
36. Which of these is a special sense?                             a. blushing
    a. proprioception                                              b. increased cardiac output
    b. olfaction                                                   c. decreased gut peristalsis
    c. temperature                                                 d. erection
    d. tactile vibration
                                                               45. The   two divisions of the ANS generally
37. Blocking the release of which of these                         a.    have complementary effects
    neurotransmitters in pain transmission leads to                b.    do not interact
    analgesia?                                                     c.    have similar effects
    a. acetylcholine                                               d.    have opposite effects
    b. substance P
                                                               46. Autonomic tone allows autonomic neurons to
    c. norepinephrine
                                                                   a. increase their activity
    d. dopamine
                                                                   b. decrease their activity
38. Is our perception of realty “real?” In other                   c. both increase and decrease their activity
    words, does it encompass the entire spectrum                   d. none of the above
    of possible perceptions?
                                                               47. Preganglionic and postganglionic fibers in the
    Answer {a} if yes, {b} if no.
                                                                   parasympathetic division secrete
39. Under normal circumstances, to which of these                  a. norepinephrine and acetylcholine
    normal-level stimuli would the photoreceptors                  b. acetylcholine
    in the human retina respond?                                   c. cyclic AMP
    a. changes in vitreous humor pH                                d. nitrous oxide and carbon monoxide
    b. photons of light
                                                               48. The mapping of the somatic sensory field to the
    c. changes in intraocular pressure
                                                                   postcentral gyrus is
    d. UV radiation
                                                                   a. ipsilateral and right-side up
    e. {b} and {d}
                                                                   b. ipsilateral and up-side down
40. What substance released from damaged tissue                    c. contralateral and up-side down
    sensitizes the nociceptor free nerve endings?                  d. contralateral and right-side up
    a. tissue plasminogen activator
                                                               49. Postganglionic sympathetic neurons secrete
    b. histamine
                                                                   a. acetylcholine
    c. prostaglandins
                                                                   b. norepinephrine and acetylcholine
    d. adenosine
                                                                   c. aflatoxin
41. Nicotinic receptors would not be found where?                  d. carbon monoxide
    a. postsynaptic membranes of postganglionic
                                                               50. Ganglionic neurons of the sympathetic division
                                                                   are located in the
    b. postsynaptic membranes at
                                                                   a. adrenal medulla [as the epinephrine and
         parasympathetic neuroeffector junctions
                                                                        norepinephrine secreting cells]
    c. postsynaptic membranes at -adrenergic
                                                                   b. prevertebral ganglia
         neuroeffector junctions
                                                                   c. sympathetic chain ganglia
    d. both {b} and {c}
                                                                   d. all of the above

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51. The prevertebral (collateral) ganglia of the ANS            56. The    inability to recognize faces is
    include the                                                     a.      presbyopia
    a. vestibulocochlear, trochlear, and lacrimal                   b.      dyslexia
    b. mandibular, maxillary, and ophthalmic                        c.      dysbarism
    c. celiac, superior mesenteric, and inferior                    d.      prosophenosia
                                                                57. Which of these functions occurs in the
52. What is the commonest neurotransmitter used                     prefrontal areas?
    to excite the muscle fiber?                                     a. visual image formation
    a. dopamine                                                     b. speech recognition
    b. GABA                                                         c. tactile discrimination
    c. acetylcholine                                                d. controlling one’s actions in accord with
    d. norepinephrine                                                    moral laws
53. Where does the nerve innervating the skeletal               58. Prolongation of depolarization at a synapse is
    muscle fiber have its terminus?                                 an example of
    a. closest to the origin of the muscle                          a. facilitation
    b. in the middle of the fiber                                   b. anomia
    c. closest to the insertion of the muscle                       c. motor aphasia
    d. wherever seemed best at the time                             d. dyslexia
54. The premotor cortex of the cerebral                         59. The inability to localize a sensation to its
    hemispheres stores engrams of motor activity,                   precise place on the body could be caused by a
    allowing you to perform skilled actions without                 lesion in the primary somatic sensory area
    having to call sequentially each motor output                   [post-central gyrus].
    and then process its proprioceptive return                      Answer {a} if true, {b} if false.
    before initiating the next step.
                                                                60   The   parasympathetic division is also called
    Answer {a} if true, {b} if false.
                                                                     a.    lumbosacral
55. Wernicke’s area is an extremely important                        b.    craniosacral
    general interpretative area of the cerebrum. If                  c.    thoracolumbar
    there is severe damage to this area, a person                    d.    thoracosacral
    might hear perfectly well and even recognize
                                                                61. The motor control of vocalization resides
    different words, but would probably be unable
                                                                    principally in
    to arrange these words into a coherent thought.
                                                                    a. Broca’s area
    Answer {a} if true, {b} if false.
                                                                    b. Wernicke’s area
                                                                    c. the hippocampus
                                                                    d. the thalamus
                                                                62. Equilibrium sensory input is not restricted to
                                                                    the various proprioceptors, but includes visual
                                                                    signals as well.
                                                                    Answer {a} if true, {b} if false.

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