Where does the word Afferent come from
ad("toward") + ferent("carrying")
Where does the word Efferent come from
Ex("from") + ferent("carrying")
How much is synaptic Delay
0.5 msec
What factors affect Fatigue in neurotransmission
Hypoxia and Metabolic poisons
What is Excitatory postsynaptic potential (EPSP).
localized depolarization at the postsynaptic membrane that stacks up to generate action potential
What ions contribute to the formation of EPSPs?
Na+ ions or Ca++ contribute to EPSPs formation.
What happens inhibitory postsynaptic potential (IPSP).
hyperpolarization, it makes rest membrane potential more negative so that its harder for action potential to happen
What ions contribute to the formation of IPSP?
entry of Cl – or exit of K + ions
What are inhibitory Neurotransmitters
gamma-aminobutyric acid(GABA), Glycine, Dopamine
Where are axoaxonal synapses most common
Spinal Cord
Which dopamine receptors increase cyclic AMP?
D1 and D5 receptors increase cyclic AMP.
Which dopamine receptors decrease cyclic AMP?
D2, D3, D4 receptors decrease cyclic AMP.
Whats the Function of D4 dopamine receptor
schizophrenia pathogenesis + decrease cyclic AMP.