f2018 lectures end

motor1.md

@@ -385,16 +385,26 @@ helps form negative feedback loop
 <div style="font-size:0.8em;">
 <div></div>
 
-sensory function | receptor type | afferent axon type | axon diameter (µm) | conduction velocity (m/s)
+sensory function | receptor type | afferent axon type (alt name)  | axon diameter (µm) | conduction velocity (m/s)
 --- | --- | --- | --- | ---
-proprioception | muscle spindle | Ia, II (**myelinated**) | 13–20 | 80–120
-touch | Merkel, Meissner, Pacinian, and Ruffini cells | A𝛽 (**myelinated**) | 6–12 | 35–75
-pain, temperature | free nerve endings | Aδ (**myelinated**) | 1–5 | 5–30
-pain, temperature, itch | free nerve endings | C (**unmyelinated**) | 0.2–1.5 | 0.5–2
+proprioception | muscle spindle | Aα (Ia + Ib), **myelinated** | 13–20 | 80–120
+touch | Merkel, Meissner, Pacinian, and Ruffini cells | A𝛽 (II), **myelinated** | 6–12 | 35–75
+pain, temperature | free nerve endings | Aδ (III), **myelinated** | 1–5 | 5–30
+pain, temperature, itch | free nerve endings | C, **unmyelinated** | 0.2–1.5 | 0.5–2
 
 </div>
 
+<!-- 
+<figure><figcaption class="big">Types of somatosensory afferents linking receptors to the CNS</figcaption><img src="figs/Neuroscience5e-Tab-09.01_copy_653cef2.jpg" height="400px"><figcaption>Neuroscience 5e Table 01</figcaption></figure> 
+-->
 
+Note:
+
+This table summarizes the somatosensory afferents types, and variety in their functions, morphologies, and AP conduction velocities.
+
+Tab. 1 after Rosenzweig 2005
+
+--
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 ## The stretch reflex
@@ -673,7 +683,3 @@ spinal locomotor and brainstem respiratory CPGs (Yuste et al, Nat Rev Neurosci 2
 : have an 'excitatory core' of mutually excitatory interneurons  
 : ea. hemisegment of the spinal cord has this a core
 : reciprocal inhibition between contralateral hemisegments results in alternating left–right motor output  
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-
-
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