Reflex Arc - Revision history

Ellen References at 18:01, 18 December 2019

2019-12-18T18:01:11Z

Ellen References at 18:00, 18 December 2019

2019-12-18T18:00:49Z

Ellen References at 06:48, 28 November 2019

2019-11-28T06:48:58Z

NRJC at 19:17, 8 April 2019

2019-04-08T19:17:12Z

NRJC: /* About the Reflex Arc */

2019-04-07T21:14:39Z

‎About the Reflex Arc

NRJC: /* About the Reflex Arc */

2019-04-07T21:14:18Z

‎About the Reflex Arc

NRJC: Created page with "==Key Stage 4== ===Meaning=== The '''reflex arc''' is the path taken by an electrical impulse to cause an automatic reflex reaction...."

2018-11-12T11:18:17Z

Created page with "==Key Stage 4== ===Meaning=== The '''reflex arc''' is the path taken by an electrical impulse to cause an automatic reflex reaction...."

New page

==Key Stage 4==
===Meaning===
The '''reflex arc''' is the path taken by an [[Impulse (Biology)|electrical impulse]] to cause an automatic [[Reflex Reaction|reflex reaction]].

===About the Reflex Arc===
: Sometimes a change in the environment is so dangerous it would cause more damage to have to think about it before reacting to it. This is the case for very high [[temperature]]s. If the [[skin]] begins to burn this will cause more damage the longer it takes to react. [[Animal]]s have [[evolution|evolved]] [[Reflex Reaction|reflex reactions]] to react quickly to prevent unnecessary damage.
: [[Reflex Reaction|Reflex reactions]] take place when an [[Impulse (Biology)|impulse]] is sent along the '''reflex arc'''.
: The [[Impulse (Biology)|impulse]] in the '''reflex arc''' does not pass to the [[brain]] to be processed. It is sent to the [[Spinal Cord|spinal cord]] then to an [[effector]]. This provides a shorter path for the [[Impulse (Biology)|impulse]] so results in a shorter reaction time.
The '''reflex arc''' can be [[describe]]d in several stages:
#[[Stimulus]] - A change to the external environment.
#[[Receptor Cell]] - A [[Specialised Cell|specialised cell]] detects the change in the environment and produces an [[Impulse (Biology)|electrical impulse]].
#[[Sensory Neuron]] - The [[Impulse (Biology)|impulse]] is [[transmit]]ted to the [[Spinal Cord|spinal cord]].
#[[Relay Neuron]] - The [[Impulse (Biology)|impulse]] is relayed from the [[Sensory Neuron|sensory neuron]] to a [[Motor Neuron|motor neuron]].
#[[Motor Neuron]] - The [[Impulse (Biology)|impulse]] is [[transmit]]ted from the [[Spinal Cord|spinal cord]] to an [[effector]].
#[[Effector]] - A [[muscle]] receives the [[Impulse (Biology)|impulse]] form the [[Motor Neuron|motor neuron]].
#[[Action]] - The [[muscle]] contracts causing part of the body to move uncontrollably.

{| class="wikitable"
|-
|[[File:ReflexArc.png|center|800px]]
|-
| style="height:20px; width:200px; text-align:center;" |A [[diagram]] showing the '''reflex arc'''.
|}

@@ Line 29: / Line 29: @@
 :[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948120&linkCode=as2&tag=nrjc-21&linkId=dedef775c6a43dbb0a609441525adac0 ''Reflex arcs, page 73, GCSE Biology, CGP, Edexcel '']
-====OCR====:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Reflex arcs, page 36, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR '']
+====OCR====
 :[https://www.amazon.co.uk/gp/product/1782945660/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945660&linkCode=as2&tag=nrjc-21&linkId=83aa4500ad7759e7f401a1c5ba5df758 ''Reflex arcs, page 43, Gateway GCSE Biology; The Revision Guide, CGP, OCR '']

← Older revision		Revision as of 18:00, 18 December 2019
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	:[https://www.amazon.co.uk/gp/product/1292120207/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120207&linkCode=as2&tag=nrjc-21&linkId=22455ff53961978667722edaa64c0be5 ''Reflex arc, page 47, GCSE Biology, Pearson, Edexcel '']		:[https://www.amazon.co.uk/gp/product/1292120207/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120207&linkCode=as2&tag=nrjc-21&linkId=22455ff53961978667722edaa64c0be5 ''Reflex arc, page 47, GCSE Biology, Pearson, Edexcel '']
	:[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948120&linkCode=as2&tag=nrjc-21&linkId=dedef775c6a43dbb0a609441525adac0 ''Reflex arcs, page 73, GCSE Biology, CGP, Edexcel '']		:[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948120&linkCode=as2&tag=nrjc-21&linkId=dedef775c6a43dbb0a609441525adac0 ''Reflex arcs, page 73, GCSE Biology, CGP, Edexcel '']
		+
		+	====OCR====:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Reflex arcs, page 36, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR '']
		+	:[https://www.amazon.co.uk/gp/product/1782945660/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945660&linkCode=as2&tag=nrjc-21&linkId=83aa4500ad7759e7f401a1c5ba5df758 ''Reflex arcs, page 43, Gateway GCSE Biology; The Revision Guide, CGP, OCR '']

← Older revision		Revision as of 06:48, 28 November 2019
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	\| style="height:20px; width:200px; text-align:center;" \|A [[diagram]] showing the '''reflex arc'''.		\| style="height:20px; width:200px; text-align:center;" \|A [[diagram]] showing the '''reflex arc'''.
	\|}		\|}
		+
		+	===References===
		+	====Edexcel====
		+
		+	:[https://www.amazon.co.uk/gp/product/1292120207/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120207&linkCode=as2&tag=nrjc-21&linkId=22455ff53961978667722edaa64c0be5 ''Reflex arc, page 47, GCSE Biology, Pearson, Edexcel '']
		+	:[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948120&linkCode=as2&tag=nrjc-21&linkId=dedef775c6a43dbb0a609441525adac0 ''Reflex arcs, page 73, GCSE Biology, CGP, Edexcel '']

@@ Line 1: / Line 1: @@
 ==Key Stage 4==
 ===Meaning===
-The '''reflex arc''' is the path taken by an [[Impulse (Biology)|electrical impulse]] to cause an automatic [[Reflex Reaction|reflex reaction]].
+The '''reflex arc''' is the path taken by an [[Impulse (Biology)|electrical impulse]] to cause an automatic reflex reaction.
 ===About the Reflex Arc===

@@ Line 5: / Line 5: @@
 ===About the Reflex Arc===
 : Sometimes a change in the environment is so dangerous it would cause more damage to have to think about it before reacting to it. This is the case for very high [[temperature]]s. If the [[skin]] begins to burn this will cause more damage the longer it takes to react. [[Animal]]s have [[evolution|evolved]] reflex reactions to react quickly to prevent unnecessary damage.
-: [[Reflex Reaction|Reflex reactions]] take place when an [[Impulse (Biology)|impulse]] is sent along the '''reflex arc'''.
+: Reflex reactions take place when an [[Impulse (Biology)|impulse]] is sent along the '''reflex arc'''.
 : The [[Impulse (Biology)|impulse]] in the '''reflex arc''' does not pass to the [[brain]] to be processed. It is sent to the [[Spinal Cord|spinal cord]] then to an [[effector]]. This provides a shorter path for the [[Impulse (Biology)|impulse]] so results in a shorter reaction time.
 The '''reflex arc''' can be [[describe]]d in several stages:
@@ Line 14: / Line 14: @@
 #[[Motor Neuron]] - The [[Impulse (Biology)|impulse]] is [[transmit]]ted from the [[Spinal Cord|spinal cord]] to an [[effector]].
 #[[Effector]] - A [[muscle]] receives the [[Impulse (Biology)|impulse]] form the [[Motor Neuron|motor neuron]].
-#Action - The [[muscle]] contracts causing part of the body to move uncontrollably.
+#Reaction - The [[muscle]] contracts causing part of the body to move uncontrollably.
 {| class="wikitable"