Semester I mini II Neuroscience
Terms
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- Reflexes can increase due to diseased ___ neurons.
- UMN
- ____ is reflexes being diminished/lessoned due to pathology of ____, LMN, LMJ, and muscle joint diseases.
- hyporflexia, sensory nerve
- ___ is the sensationg of stimuli that have caused tissue damage or threaten to do so.
- nociception
- LMN cell bodies are found in the ____ horn of the spinal cord and the ___.
- ventral, brain stem
- Voluntary movement must be controled by ___ motor neurons.
- upper
- ____ cell bodies are in the cerebral cortex and the brain stem.
- UMN
- ___ motor neurons usually have an inhibitory effect on reflexes.
- upper
- Muscle spindle afferent sensory nerve fibers are type ___.
- Ia
- Golgi tendon organ afferent sensory fibers are type __.
- Ib
- Vibration and touch are classified as ___ fibers.
- A- beta
- LMN that go to the muscle spindles are classified as ___ fibers.
- A-gamma
- Pain are classified as ___ fibers.
- A-delta
- Preganglionic autonomic are classified as ___ fibers.
- B
- Slow pain and post ganglionic autonomic fibers are classified as ___ fibers, and are also ____.
- C, unmyelnated
- Intrafusal fibers are innervated by __-motorneurons, while extrafusal fibers are innervated by ___-motorneurons.
- alpha, gamma
- ___ are arranged in parallel with extrafusal fibers and detect change in muscle length.
- muscle spindle
- ___ are arranged in series with extrafusal fibers and detect change in muscle tension.
- golgi tendon organ
- ____ inhibits the agonist muscle and activates the antagonist muscle.
- Golgi tendon organ
- ___- motorneurons maintains the sensitivity of the muscle spindle at all lengths of the muscle.
- gamma
- ___ reflex is a withdrawal (flexor reflex) accompanied by the extension of the opposite limb.
- crossed extensor
- ___ lesions give rise to flacid paralysis, areflexia, and muscle atrophy.
- LMN
- ___ lesions give rise to spastic paralysis, hyperreflexia, and babinki's sign.
- UMN