ANAT 100 Block Theory 2 Exam Questions With Correct Answers

ANAT 100 Block Theory 2 Exam Questions With
Correct Answers

What |are |the |three |steps |of |the |nervous |system? |- |CORRECT |ANSWER✔✔-1. |Sensory |input

2. |Integration

3. |Motor |output



What |is |sensory |input? |- |CORRECT |ANSWER✔✔-Sensory |input |from |the |environment |is |
detected |by |sensory |nerves |and |travels |through |the |body |to |communicate |with |other |nerve |
cells



What |is |integration? |- |CORRECT |ANSWER✔✔-Processing |and |interpretation |of |sensory |input



What |is |motor |output? |- |CORRECT |ANSWER✔✔-a |response |to |integrated |stimuli; |the |response
|activates |muscles |or |glands |by |sending |motor |output |through |motor |nerves




What |are |the |two |principal |subdivisions |of |the |nervous |system? |- |CORRECT |ANSWER✔✔-
Central

Peripheral



What |is |the |function |of |the |CNS? |- |CORRECT |ANSWER✔✔-»Where |all |signals |come |to |and |
from |

»Where |they |are |integrated |

»Where |information |can |be |stored

,What |is |the |function |of |the |PNS? |- |CORRECT |ANSWER✔✔-System |that |brings |those |signals |to |
and |from |the |CNS



What |are |the |two |divisions |that |the |PNS |can |be |further |broken |down |into? |- |CORRECT |
ANSWER✔✔-Sensory |(afferent) |division

Motor |(efferent) |division



What |does |the |sensory |division |do? |- |CORRECT |ANSWER✔✔-Relays |information |to |CNS

Sensing |things |such |as |sight, |smell, |touch |and |even |pain |

Sends |the |information |to |the |CNS |through |sensory |neurons



What |does |the |motor |division |do? |- |CORRECT |ANSWER✔✔-Relays |information |from |CNS |to |
target |cells |

The |actual |response |that |is |elicited |

Signal |comes |from |the |CNS, |the |brain, |or |spinal |cord |and |is |relayed |to |a |target |cell |through |
efferent |neurons



What |subdivisions |can |the |motor |(efferent) |division |be |further |divided |into? |- |CORRECT |
ANSWER✔✔-Somatic

Autonomic



What |is |the |function |of |the |somatic |nervous |system? |And |how |does |it |do |that? |- |CORRECT |
ANSWER✔✔-Controls |voluntary |movement



Signal |comes |from |the |CNS |through |the |efferent |neurons |to |a |target |skeletal |muscle |cell, |
eliciting |movement |of |that |muscle



What |is |the |function |of |the |autonomic |nervous |system? |- |CORRECT |ANSWER✔✔-Controls |
involuntary |movement

, What |can |the |autonomic |nervous |system |be |further |divided |into? |- |CORRECT |ANSWER✔✔-
Sympathetic |- |fight |or |flight

Parasympathetic |- |rest |and |digest



What |do |neurons |do? |- |CORRECT |ANSWER✔✔-Structural |units |of |the |nervous |system.



Allow |for |communication |within |and |between |the |CNS |and |PNS.



Can |generate |and |transmit |rapid |electrical |signals |to |other |neurons



Neuron |Structure |- |CORRECT |ANSWER✔✔-cell |body, |dendrites, |axon



What |does |the |cell |body |do |in |a |neuron? |- |CORRECT |ANSWER✔✔-Functions |to |transfer |
electrical |signals |from |the |dendrites |to |the |axon

Also |called |the |'soma'

Houses |the |nucleus |and |other |organelles



What |does |the |dendrites |do |in |a |neuron? |- |CORRECT |ANSWER✔✔-Receive |the |neuronal |signal
|form |other |neurons |and |transfer |those |signals |to |the |cell |body




What |does |the |axon |do |in |a |neuron? |- |CORRECT |ANSWER✔✔-Carry |the |signal |from |the |cell |
body |to |the |axon |terminals, |where |the |signal |is |then |transferred |to |other |neurons |or |organs



What |is |the |direction |of |a |nerve |impulse? |- |CORRECT |ANSWER✔✔-Unidirectional



What |are |the |characteristics |of |a |pseudo-unipolar |neuron? |- |CORRECT |ANSWER✔✔-Have |one |
cellular |process |that |splits |into |a |dendrite |and |an |axon.