Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
a motor unit is a ___ neuron and all the ___ it innervates
|
alpha motor
muscle fibers |
|
renshaw cells receive input from a ___ and provide ___
|
alpha motor neuron collateral
recurrent inhibition |
|
2 proprioceptive organs in muscle
|
muscle spindle
golgi tendon organ |
|
fibers inside muscle spindle are ___, others are ___
|
intrafusal
extrafusal |
|
muscle spindles are connected ___ly with extrafusal fibers and sense ___.
|
in parallel with
fiber length |
|
muscle spindles transduce stretch into ___ which causes ____
this reflex is called ___ |
increased firing rate
stimulation of alpha motor neurons myotactic reflex |
|
gamma motor neurons do ___
this allows ___ |
cause contraction of intrafusal fibers
voluntary muscle contraction without triggering myotactic reflex |
|
GTOs are connected ___ly with extrafusal fibers and sense ___
|
in serial with
muscle tension |
|
patellar reflex involves SC levels ___
|
L2-L4
|