Nervous System until Synaptic Neurotransmission Flashcards
2 systems under Nervous System
Central Nervous System & Peripheral Nervous System
Path of Motor Peripheral Nervous System
Brain to Organ System (efferent)
Path of Sensory Peripheral Nervous System
Organ System to Brain (afferent)
2 Classifications under Motor System
Somatic & Autonomic
3 Classifications under Autonomic
Sympathetic, Parasympathetic, Enteric
Neuronal set up of Somatic
Single (1)
Neuronal set up of Autonomic
Double (2)
Activities of Somatic
Voluntary
Activities of Autonomic
Involuntary
Effector organ of Somatic
Skeletal Muscle
Effector organ of Autonomic
Cardiac,renal vascular smooth muscles and smooth muscles, nerve terminal, sweat glands, sebacious glands
Other name for SANS
Adrenergic
Other name for PANS
Cholinergic
Origin of SANS
Thoracolumbar (T1-T12) (L1-L3)
Origin of PANS
Craniosacral (C1-C8) (S1-S5)
Pre-ganglionic fiber of SANS
Short
Pre-ganglionic fiber of PANS
Long
Post-ganglionic fiber SANS
Long
Post-ganglionic fiber of PANS
Short
Location of SANS
Near spinal cord (Paravertebral & prevertebral)
Location of PANS
Near effector organ (walls of effector organ)
Neurotransmitter @ innervated organ of SANS
Ache and Catecholamines
Neurotransmitter @ innervated organ of PANS
Ache
Examples of Catecholamines
Epinephrine, Norepinephrine, Dopamine
Other name for Epinephrine
Adrenaline
Receptors @ innervated organ of SANS
Adrenergic Receptors & Cholinergic Receptors
Receptors @ innervated organ of PANS
Cholinergic Receptors
Pertains to both sides of the spinal cord
Paravertebral
Pertains to the front of the spine (front of the aorta)
Prevertebral
Divisions of the Autonomic Nervous System
Sympathetic, Parasympathetic, Enteric
Consists of a network of autonomic nerves located in the gut wall that regulates GI motility & Secretion
Enteric Nervous System
Layer in between of Muscularis and Serosa
Sub mucosal plexus
Layer in between longitudinal and circular layer of Muscularis
Myenteric plexus
These two layers make up the enteric system
Sub mucosal Plexus & Myenteric plexus
Continence is another term for
Urinary Retention
Division of the ANS that activates all together
SANS
Describes the transmission of impulse across the interphase
Synaptic Neurotransmission
Pulls synaptic vesicles towards the docking protein
Calcium
Starts at dendrites of the neurons
Graded potential
Propagated at the axon
Action potential
Occurs in the synaptic vesicles
Synaptic Neurotransmission
Reason for exocytosis of synaptic vesicles
Increase of intracellular calcium
Structures of the CNS
Brain & Spinal cord
Clusters of neurons located outside of the CNS
Ganglia
Clusters of neurons located inside the CNS
Nucleus
Network of nerve cells
Plexus
