Neuro S4 - Motoneurones Flashcards
1
Q
Define a reflex
A
An involuntary, unlearned, repeatable, automatic reaction to a specific stimulus that does not require the brain to be intact
2
Q
Give the components of a reflex arc
A
Receptor Afferent neurone Interneurone Efferent neurone Effector
3
Q
Describe muscle tone
A
The normal state of muscles in a conscious individual - a level of background tension in the muscles that helps maintain posture.
4
Q
Define hypotonia
A
Reduced muscle tone. The body is unable to maintain normal posture and may be unable to support its own weight.
5
Q
Give examples of lower motoneurone signs
A
Flaccid muscle weakness Hypotonia Hyporeflexia Denervation muscle atrophy Fasiculations Muscle wasting
