Notes in 008 - Reflexes

To Subscribe, use this Key

Status	Last Update	Fields
Published	10/01/2024	The eyeblink, gag reflex and limb withdrawal reflex are {{c1::protective::type of reflex}} reflexes
Published	10/01/2024	The vestibulo-ocular reflex is a {{c1::regulatory::type of reflex}} reflexIt's objective is to {{c2::maintain gaze}}
Published	10/01/2024	The muslce-stretch reflex is a {{c1::regulatory::type of reflex}} reflexIt's objective is to {{c2::maintain limb position}}
Published	10/01/2024	Outline reflex pathway{{c1::Stimulus}}{{c1::Sensory receptor}}{{c1::Afferent limb}}{{c1::Intergrating centre}}{{c1::Efferent limb}}{{c1::Effector orga…
Published	10/01/2024	Motor neurons are distributed in the {{c1::ventral::dorsal/ventral}} horn
Published	10/01/2024	Motor neurons controlling distal muscles are {{c1::lateral}} in the ventral horn
Published	10/01/2024	Motor neurons controlling proximal muslces are {{c1::medial}} in the ventral horn
Published	10/01/2024	Motor neurons controlling flexor muslces are {{c1::dorsal}} in the ventral horn
Published	10/01/2024	Motor neurons controlling extensor muslces are {{c1::dorsal}} in the ventral horn
Published	10/01/2024	The total motor neuron projection to a single muscle is the {{c1::motor neuron pool}}
Published	10/01/2024	A single motor neuron and the muscle fibres that it supplies is called a {{c1::motor unit}}
Published	10/01/2024	A small motor unit may supply as few as {{c1::10}} muscle fibres
Published	10/01/2024	A large motor unit will supply more than {{c1::1000}} muscle fibres
Published	10/01/2024	Outline recruitment of motor units{{c1::Low levels of synaptic drive activate smaller motor neurones of smaller motor units}}{{c1::Higher levels of sy…
Published	10/01/2024	The size principle states that motor units are recruited in {{c1::order of size}} to increase {{c2::tension}}
Published	10/01/2024	Gamma motor neurons innervate {{c1::intrafusal}} muscle fibres
Published	10/01/2024	Alpha motor nuerones innervate {{c1::extrafusal}} muscle fibres
Published	10/01/2024	The {{c1::muscle stretch}} reflex is the only {{c2::monosynaptic}} reflex in the nervous system
Published	10/01/2024	Outline muscle stretch reflex{{c1::Muscle length and speed of stretch increases (e.g. from deep tendon reflex i.e. knee jerk)}}{{c1::Ia afferents thro…
Published	10/01/2024	Outline the inverse mytotactic (muscle stretch) reflex{{c1::Increased tension }}{{c1::Ib afferents via dorsal root ganglion}}{{c1::Ib afferent sy…
Published	10/01/2024	H ReflexElectrical stimulation of a nerve supplying a muscle has a {{c3::short}} pathway, so it has a short {{c1::latency resposne}}This is called the…
Published	10/01/2024	H ReflexAfter initial electrical nerve stimulation, a second response can be seen on EMG. This is because the electrical stimulation activates {{c3::I…
Status	Last Update	Fields