Final Exam SCI 221 Questions With Correct
Answers
To |accomplish |self-regulation, |a |highly |complex |and |integrated |communication |control |system |
or |network |is |required. |This |type |of |network |is |called |a(n) |- |CORRECT |ANSWER✔✔-feedback |
control |loop.
Local |control |or |_____, |intrinsic |mechanisms |often |make |use |of |chemical |signals. |- |CORRECT |
ANSWER✔✔-autoregulation
The |impact |of |effector |activity |on |sensors |may |be |positive |or |negative. |Therefore, |homeostatic
|control |mechanisms |are |categorized |as |- |CORRECT |ANSWER✔✔-organs |that |are |directly |
influenced |by |physiological |variables |or |mechanisms.
The |normal |reading |or |range |is |called |the |- |CORRECT |ANSWER✔✔-set |point.
Events |that |lead |to |an |immune |response |to |an |infection |or |the |formation |of |a |blood |clot |are |
examples |of |- |CORRECT |ANSWER✔✔-positive |feedback
The |concept |that |information |may |flow |ahead |to |another |process |to |trigger |a |change |in |
anticipation |of |an |event |that |will |follow |is |called |- |CORRECT |ANSWER✔✔-feed-forward.
Processes |for |maintaining |or |restoring |homeostasis |are |known |as |- |CORRECT |ANSWER✔✔-
homeostatic |control |mechanisms.
Homeostatic |Control |Mechanisms |- |CORRECT |ANSWER✔✔-receptor, |control |center, |effector
, receptor, |control |center, |effector |- |CORRECT |ANSWER✔✔-List |the |three |basic |components |of |a
|feedback |system.
What |term |describes |a |signal |traveling |toward |a |particular |center |or |point |of |reference? |- |
CORRECT |ANSWER✔✔-afferent
Effectors |can |be |described |as |- |CORRECT |ANSWER✔✔-organs |that |directly |influence |controlled
|physiological |variables.
Many |complex |processes |of |the |body |are |coordinated |at |many |levels. |These |include |- |
CORRECT |ANSWER✔✔-intracellular, |intrinsic |and |extrinsic
Which |level |of |control |operates |at |the |cell |level, |often |using |genes |and |enzymes |to |regulate |
cell |function? |- |CORRECT |ANSWER✔✔-intracellular |regulation
The |relatively |constant |state |maintained |by |the |body |is |known |as |- |CORRECT |ANSWER✔✔-
homeostasis.
The |body |naturally |changes |some |set |points |to |different |values |at |different |times |of |the |day. |
These |daily |cyles |are |called |- |CORRECT |ANSWER✔✔-circadian |cycles.
Because |negative |feedback |control |systems |oppose |changes |that |are |opposite |in |direction |to |
the |initial |disturbance, |they |are |- |CORRECT |ANSWER✔✔-slowed |or |maintained |in |the |
homeostatic |range.
Of |the |11 |major |body |systems, |which |is |the |least |involved |in |maintaining |homeostasis? |- |
CORRECT |ANSWER✔✔-Reproductive
Answers
To |accomplish |self-regulation, |a |highly |complex |and |integrated |communication |control |system |
or |network |is |required. |This |type |of |network |is |called |a(n) |- |CORRECT |ANSWER✔✔-feedback |
control |loop.
Local |control |or |_____, |intrinsic |mechanisms |often |make |use |of |chemical |signals. |- |CORRECT |
ANSWER✔✔-autoregulation
The |impact |of |effector |activity |on |sensors |may |be |positive |or |negative. |Therefore, |homeostatic
|control |mechanisms |are |categorized |as |- |CORRECT |ANSWER✔✔-organs |that |are |directly |
influenced |by |physiological |variables |or |mechanisms.
The |normal |reading |or |range |is |called |the |- |CORRECT |ANSWER✔✔-set |point.
Events |that |lead |to |an |immune |response |to |an |infection |or |the |formation |of |a |blood |clot |are |
examples |of |- |CORRECT |ANSWER✔✔-positive |feedback
The |concept |that |information |may |flow |ahead |to |another |process |to |trigger |a |change |in |
anticipation |of |an |event |that |will |follow |is |called |- |CORRECT |ANSWER✔✔-feed-forward.
Processes |for |maintaining |or |restoring |homeostasis |are |known |as |- |CORRECT |ANSWER✔✔-
homeostatic |control |mechanisms.
Homeostatic |Control |Mechanisms |- |CORRECT |ANSWER✔✔-receptor, |control |center, |effector
, receptor, |control |center, |effector |- |CORRECT |ANSWER✔✔-List |the |three |basic |components |of |a
|feedback |system.
What |term |describes |a |signal |traveling |toward |a |particular |center |or |point |of |reference? |- |
CORRECT |ANSWER✔✔-afferent
Effectors |can |be |described |as |- |CORRECT |ANSWER✔✔-organs |that |directly |influence |controlled
|physiological |variables.
Many |complex |processes |of |the |body |are |coordinated |at |many |levels. |These |include |- |
CORRECT |ANSWER✔✔-intracellular, |intrinsic |and |extrinsic
Which |level |of |control |operates |at |the |cell |level, |often |using |genes |and |enzymes |to |regulate |
cell |function? |- |CORRECT |ANSWER✔✔-intracellular |regulation
The |relatively |constant |state |maintained |by |the |body |is |known |as |- |CORRECT |ANSWER✔✔-
homeostasis.
The |body |naturally |changes |some |set |points |to |different |values |at |different |times |of |the |day. |
These |daily |cyles |are |called |- |CORRECT |ANSWER✔✔-circadian |cycles.
Because |negative |feedback |control |systems |oppose |changes |that |are |opposite |in |direction |to |
the |initial |disturbance, |they |are |- |CORRECT |ANSWER✔✔-slowed |or |maintained |in |the |
homeostatic |range.
Of |the |11 |major |body |systems, |which |is |the |least |involved |in |maintaining |homeostasis? |- |
CORRECT |ANSWER✔✔-Reproductive
