Reflexes
Terms
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- A _____ is a direct connection between stimulus and response, which does not require conscious thought.
- Reflex
- The two types of reflexes are?
- Voluntary and involuntary
- A 3 neuron reflex is also called a _____ because it is commonly involved in withdrawing from painful stimuli.
- Withdrawal reflex
- Withdrawing from painful stimuli does not require thought. But the interneuron does send a fiber through the ____ to the brain where pain is percieved.
- Spinothalamic tract
- The ______ reflex is the simplest form of reflex.
- Stretch
- A stretch reflex involves only _____ neurons.
- Two
- The two neurons involved in the stretch reflex are the _____ and ______.
- Sensory and motor reflexes
- A stretch of a muscle normally happens when its ______ contacts or artifically when its tendon is is stretched, as in a knee jerk reflex.
- Antagonist
- Muscles contain receptors called _____.
- Muscles spindles
- Since at the time of the muscle stretch its antagonist was contacting, in order to avoid damage it must be inhibited or tuned off in the reflex. This is called ______?
- Reciprocal inhibition
- Tendon receptors respond to the _____ of a muscle.
- Contraction
- The ______ reflex involves _______, _____, and ______ neurons.
-
Deep tendon
Sensory neurons
Interneurons
Motor neurons - In order to facilitate that the reflex sends excitatory stimuli to the antagonists causing them to contract or ________.
- Reciprocal activation
- The _____ and _____ reflexes complement one another.
- Stretch and tendon
- When one muscle is stretching and stimulating the stretch reflex, its _____ is contracting and stimulating the ____ reflex.
-
Antagonist
Tendon - A reflex involves ____ or ____ neurons.
- 2 or 3
- A three neuron reflex requires a _____, an _____, and a ______ neuron.
-
Sensory
Interneuron
Motor - The _____ reflex is just a withdrawal reflex on on side with the addition of ____ pathways needed to maintain balance and coordination.
-
Crossed extensor
Inhibitory