brain part

Details about IV.
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Hierarchy level in atlas Swanson, version Swanson-1998 is 5: 4 superstructures include it.

No other subparts of IV.
  
Tree of Trochlear nucleus

Brain
Midbrain-Hindbrain
Midbrain-Hindbrain, Motor
Midbrain-Hindbrain, Motor, Eye



Neuron populations (BAMS reference)
motor neuron, extraocular muscles

Chemoarchitecture cell body
cell associated
inferred: nicotinic receptor
alpha4-1 subunit nicotinic receptor of nicotinic receptor
alpha4-2 subunit nicotinic receptor of nicotinic receptor
beta2 subunit nicotinic receptor of nicotinic receptor


Complete chemoarchitecture profile (cell body)

Efferent projections of Trochlear nucleus