QUIZThe Peripheral Nervous System, Chapter 13

B

1) Which division detects stimuli of the general senses and special senses? A) visceral motor division (autonomic nervous system) B) somatic sensory division C) visceral sensory division D) somatic motor division

D

10) Where is the motor response initiated? A) cranial nerves B) spinal nerves C) lower motor neurons of the peripheral nervous system (PNS) D) motor areas of the brain

D

11) What is cranial nerve VIII? A) trigeminal nerve B) facial nerve C) glossopharyngeal nerve D) vestibulocochlear nerve

B

12) The vagus nerve is represented by Roman numeral: A) I. B) X. C) V. D) XII.

D

13) Which cranial nerve is generally thought of as a mixed nerve? A) hypoglossal nerve (XII) B) vestibulocochlear nerve (VIII) C) accessory nerve (XI) D) glossopharyngeal nerve (IX)

C

14) Which cranial nerve is NOT involved in eye movement? A) oculomotor nerve (III) B) abducens nerve (VI) C) vestibulocochlear nerve (VIII) D) trochlear nerve (IV)

A

15) The cranial nerves that have neural connections with the tongue include all of the following EXCEPT: A) trochlear nerve (IV). B) trigeminal nerve (V). C) facial nerve (VII). D) glossopharyngeal nerve (IX).

B

16) Which cranial nerve detects smell? A) optic nerve (II) B) olfactory nerve (I) C) oculomotor nerve (III) D) trochlear nerve (IV)

D

17) An inability to swallow indicates a problem with the: A) accessory nerve (XI) or hypoglossal nerve (XII). B) olfactory nerve (I). C) trochlear nerve (IV) or abducens nerve (VI). D) trigeminal nerve (V) or glossopharyngeal nerve (IX).

C

18) Ms. Parker has damage to the sensory root of the facial nerve (VII). Which of the following symptoms matches this information? A) inability to elevate the mandible B) inability to swallow C) inability to taste D) inability to smell

C

19) Loss of balance and equilibrium can indicate damage to the: A) hypoglossal nerve (XII). B) accessory nerve (XI). C) vestibulocochlear nerve (VIII). D) trochlear nerve (IV).

B

20) Where does the motor portion of the facial nerve (VIII) originate? A) midbrain B) nuclei in the pons and medulla C) tongue D) cerebral cortex

D

21) What controls the movement of rectus abdominis, a skeletal muscle on the anterior surface of the body? A) posterior ramus B) posterior (dorsal) root ganglion C) posterior root D) anterior ramus

C

22) Which of the following is INCORRECT about the numbers of spinal nerves? A) 5 pairs of sacral spinal nerves B) 5 pairs of lumbar spinal nerves C) 7 pairs of cervical spinal nerves D) 12 pairs of thoracic spinal nerves

A

23) Which of the following carries sensory information only? A) posterior (dorsal) root B) anterior root C) posterior ramus D) anterior ramus

C

24) The anterior root and posterior root fuse to form a(n): A) anterior horn. B) posterior (dorsal) root ganglion. C) spinal nerve. D) posterior horn.

B

25) A network of nerves is known as a: A) ramus. B) plexus. C) root. D) horn.

A

26) During a boxing match, Sammy was hit on the side of the neck. He stopped breathing temporarily due to damage to the: A) cervical plexus. B) sacral plexus. C) brachial plexus. D) lumbar plexus.

A

27) Which plexus provides motor and sensory innervation to the upper limb? A) brachial plexus B) cranial plexus C) sacral plexus D) lumbar plexus

A

28) The phrenic nerve is a member of the: A) cervical plexus. B) brachial plexus. C) sacral plexus. D) lumbar plexus.

C

29) Which of the following does NOT belong to the brachial plexus? A) musculocutaneous nerve B) median nerve C) phrenic nerve D) ulnar nerve

C

30) Striking the "funny" bone is actually stimulation (or injury) to the: A) axillary nerve. B) radial nerve. C) ulnar nerve. D) median nerve.

C

31) What do most of the anterior rami of the thoracic spinal nerves serve? A) median nerves B) brachial nerves C) intercostal nerves D) phrenic nerves

D

32) The longest and largest nerve in the body belongs to the sacral plexus and is known as the: A) femoral nerve. B) common fibular nerve. C) axillary nerve. D) sciatic nerve.

A

33) Olfactory receptors depolarize in response to an odorant, turning a stimulus into an electrical signal. This conversion is known as: A) sensory transduction. B) repolarization. C) propagation. D) adaptation.

B

34) Sensory transduction occurs in: A) upper motor neurons. B) PNS sensory neurons. C) CNS interneurons. D) lower motor neurons.

B

35) Sensory receptors that adapt to stimuli after a certain period of time are: A) thermoreceptors. B) rapidly adapting receptors. C) nociceptors. D) slowly adapting receptors.

C

36) The stretch of a full urinary bladder is detected by a(n): A) exteroceptor. B) photoreceptor. C) interoceptor. D) thermoreceptor.

A

37) Potentially damaging stimuli that result in pain are selectively detected by: A) nociceptors. B) photoreceptors. C) chemoreceptors. D) proprioceptors.

C

38) Photoreceptors are found only in the: A) nose. B) ear. C) eye. D) mouth.

C

39) Your wrap your hands around a warm cup of hot chocolate. This sensation is detected by a: A) hair follicle receptor. B) chemoreceptor. C) thermoreceptor. D) photoreceptor.

B

40) Which mechanoreceptor detects deep pressure? A) Merkel cell fiber B) lamellated corpuscle C) Ruffini ending D) tactile corpuscle

B

41) Mechanoreceptors might detect which of the following sensations? A) smell B) pressure C) temperature D) light

C

45) Regions of skin supplied by a spinal nerve for somatic sensation are known as: A) lines of cleavage. B) the rule of nines. C) dermatomes. D) the ABCDE rule.

C

46) Ms. Carroll went to her doctor's office with pain in her right shoulder blade and learned she was having a gallbladder attack. You're not surprised to hear about the unusual location of her pain since it is known as: A) the receptive field. B) phantom limb pain. C) referred pain. D) chronic pain.

C

47) Visceral pain may be perceived as cutaneous pain, a phenomenon known as: A) phantom limb pain. B) slowly adapting reception. C) referred pain. D) the receptive field.

C

48) What part of the nervous system integrates and interprets information from PNS sensory neurons? A) sensory (afferent) division B) visceral motor division, or autonomic nervous system (ANS) C) central nervous system (CNS) D) somatic nervous system (SNS)

D

5) What is the outermost connective tissue covering of a nerve? A) endoneurium B) perineurium C) epimysium D) epineurium

C

53) Place the following steps in order for motor control. 1. Upper motor neurons stimulate lower motor neurons. 2. Sensory information is relayed back to the cerebellum so movement can be modified if needed. 3. Upper motor neurons in the premotor cortex select a motor program. 4. Lower motor neurons stimulate a skeletal muscle to contract. 5. The basal nuclei enable the thalamus to stimulate upper motor neurons of the primary cortex. A) 3, 5, 1, 2, 4 B) 2, 5, 3, 1, 4 C) 3, 5, 1, 4, 2 D) 5, 3, 1, 4, 2

B

54) Which of the following does NOT characterize a reflex? A) A reflex is an automatic response to a stimulus. B) Neural integration of a reflex usually occurs in the PNS. C) Reflexes require a stimulus to initiate a motor response. D) The motor response to a stimulus is rapid.

B

55) Which of the following must occur first in a reflex arc? A) delivery of motor response to effector B) detection by receptor and delivery of stimulus C) integration in the central nervous system (CNS) D) transmission from the primary motor cortex

C

56) What type of sensory receptors are muscle spindles and Golgi tendon organs? A) nociceptor B) thermoreceptor C) mechanoreceptor D) chemoreceptors

D

57) What is NOT true of muscle spindles? A) Muscle spindles are embedded within extrafusal muscle fibers. B) The contractile poles of intrafusal fibers within muscle spindles are innervated by γ-motor neurons. C) Muscle spindles are receptors for the stretch reflex. D) Muscle spindles are found within tendons.

D

58) A reflex with a single synapse between the sensory and motor neurons within the spinal cord is known as a: A) somatic reflex. B) visceral reflex. C) polysynaptic reflex. D) monosynaptic reflex.

C

59) Determine the polysynaptic reflex from this list of examples. A) jaw-jerk reflex B) patellar (knee-jerk) reflex C) flexion (withdrawal) reflex D) simple stretch reflex

D

6) Mixed nerves house: A) sensory neurons only. B) motor neurons only. C) somatic neurons only. D) both sensory and motor neurons.

B

60) What reflex causes muscle relaxation? A) crossed-extension reflex B) Golgi tendon reflex C) stretch reflex D) flexion (withdrawal) reflex

B

61) The inability to produce a gag reflex could indicate a problem with the: A) facial nerve (VII) or trigeminal nerve (V). B) glossopharyngeal nerve (IX) or vagus nerve (X). C) abducens nerve (VI) or trochlear nerve (IV). D) hypoglossal nerve (XII) or vestibulocochlear nerve (VIII).

C

62) Which of the following complements the flexion (withdrawal) reflex? A) Golgi tendon reflex B) gag reflex C) crossed-extension reflex D) stretch reflex

A

63) In the crossed-extension reflex, if the right leg flexes, then the left leg: A) extends. B) abducts. C) flexes. D) adducts.

A

64) What cranial nerves are involved in the sensory and the motor roles for the corneal blink reflex? A) trigeminal nerve (V) as sensory; facial nerve (VII) as motor B) optic nerve (II) as sensory, oculomotor nerve (III) as motor C) trochlear nerve (IV) as sensory, abducens nerve (VI) as motor D) glossopharyngeal nerve (IX) as sensory, oculomotor nerve (III) as motor

D

7) Which of the following houses motor neurons? A) central canal of the spinal cord B) posterior root of spinal nerve C) posterior root ganglion D) anterior root of spinal nerve

A

8) What connective tissue sheath wraps the axon of a neuron? A) endoneurium B) fascicle C) epineurium D) perineurium

B

9) Bundles of axons within a nerve are known as: A) dendrites. B) fascicles. C) the endoneurium. D) the perineurium.