Flow of information Flashcards
What is somatic information
Voluntary. Things we are aware of/have control over.
What is involuntary movement called
Autonomic
What is afferent information
Sensory Information going into the brain (ascending)
What is efferent information
Motor information going out of the brain (Descending)
What is an example of Somatic efferent and afferent
Efferent - muscle control (motor)
Afferent -Sensory information (smells)
What is an example of autonomic efferent and afferent
Efferent - Muscle control (cardiac)
Afferent - Sensory (blood pressure)
What is the path of neurons in somatic efferent
Upper motor neuron - cell body in brain, myelinated axon in Spinal cord
Lower motor neuron - Cell body in spinal cord, myelinated axon in spinal nerves (PNS)
What neurotransmitter(s) is used for autonomic efferent
Acetylcholine (ACh) and/or Norepinephrine (Ne)
What is the path of neurons in autonomic efferent
Upper - cell body in brain, myelinated axon in brain/spinal cord.
Mid - cell body in brain/spinal cord, myelinated axon in PNS.
Lower - cell body and axon in PNS
What neurotransmitter is used in somatic efferent
Acetylcholine (ACh)
What are the two types of autonomic nerves
sympathetic and parasympathetic
What are the characteristics of parasympathetic
Rest and digest
Increases; Salvation and gastric motility
Decreases; Heart rate and pupil size
What neurotransmitter do sympathetic nerves use at effector and ganglion
Effector - Norepinephrine
Ganglion - ACh
What are the characteristics of sympathetic nerves
Increases; Heart rate, bloody flow to muscles, pupil size and sweating
Decreases; Salvation and gastric motility
What is the anatomical organisation of Parasympathetic nerves
Pre-ganglionic neuron (2nd) - long myelinated.
Post ganglionic neuron (3) - short not myelinated
