Biol 1191 Nerv Sys Pathways

Front 1

The 3 somatosensory pathways

Back 1

Posterior column-medial lemniscus

Anterolateral

Trigeminothalamic

Front 2

Sensations of posterior column medial lemniscus pathway

Back 2

Touch, pressure, vibration, proprioception from everywhere except face

Front 3

First order neuron of posterior column medial lemniscus pathway

Back 3

Axons extend to spinal cord from posterior spinal column

Front 4

Second order neuron of posterior column medial lemniscus

Back 4

Axons decussate in medulla and ascend to thalamus

Front 5

Third order neuron of posterior column-Medial lemniscus

Back 5

Axons extend from thalamus to primary somatosensory cortex

Front 6

Anterolateral pathway senses from specific body regions

Back 6

Pain, temp, touch, and pressure from everywhere except face

Front 7

1st order neuron in anterolateral pathway

Back 7

Synapses in spinal cord from anterolateral tract of spinal cord

Front 8

2nd order neuron in anterolateral pathway

Back 8

Decussate in spinal cord and ascend to thalamus as spinothalamic tract

Front 9

3rd order neuron in anterolateral pathway

Back 9

Project from thalamus to primary somatosensory area

Front 10

Trigeminothalamic pathway senses and regions

Back 10

Touch, temp, pain, proprioception from face, nasal cavity, oral cavity, teeth

Front 11

1st order neuron of trigeminothalamic pathway

Back 11

Synapses in pons or medulla from trigeminal ganglia

Front 12

2nd order neurons in trigeminothalamic pathway

Back 12

Decussate in pons/medulla and ascend to thalamus as trigeminothalamic

Front 13

3rd order neuron of trigeminothalamic

Back 13

Project from axons to primary somatosensory area on same side as thalamus

Front 14

The 2 somatosensory pathways to cerebellum

Back 14

Anterior spinocerebellar, posterior spinocerebellar

Front 15

What are the 4 neural circuits that are used in movement control via input to lower motor neurons

Back 15

Local circuit neurons, upper motor neurons, corpus striatum neurons, cerebellar neurons

Front 16

What is a pyramidal cell

Back 16

Upper motor neuron in a direct motor pathway

Front 17

How does a direct motor pathway differ from an indirect

Back 17

Direct provide input to lower motor neurons by axons that extend directly from cerebral cortex while indirect provide input from motor centers of the brainstem

Front 18

Function of lateral corticospinal tract

Back 18

Skilled movements of limbs

Front 19

Fxn of anterior corticospinal tract

Back 19

Movement of trunk and limbs

Front 20

Fxn corticobulbar tract

Back 20

Movement of skel muscle in head

Front 21

Where do axons of upper motor neurons of corticobulbar tract terminate

Back 21

In nuclei of cranial nerves 3, 4,5,6,7,9,10,11,12

Front 22

The 3 direct motor pathways

Back 22

Lateral corticospinal, anterior corticospinal, corticobulbar

Front 23

Indirect motor pathways

Back 23

Rubrospinal tract, tectospinal tract, lateral reticulospinal tract, medial reticulospinal tract, vestibulospinal tract

Front 24

Vestibulospinal tract fxn

Back 24

Maintain posture and balance

Front 25

Lateral and medial reticulospinal tract fxn

Back 25

Flexor extensor reflexes

Front 26

Tectospinal tract fxn

Back 26

Move head, trunk, and eyes in response to visual or auditory stim

Front 27

Rubrospinal tract fxn

Back 27

Precise movement of upper limbs

Front 28

Origin of vestibulospinal tract

Back 28

Vestibular nucleus of cn 3

Front 29

Origin of lateral and medial reticulospinal tracts

Back 29

Reticular formation

Front 30

Origin of tectospinal tract

Back 30

Superior colliculi

Front 31

Origin of rubrospinal tract

Back 31

Red nucleus

Front 32

Location of preganglionic neural cell bodies of sympathetic

Back 32

In lateral grey horns of thoracolumbar division of spinal cord

Front 33

Where are sympathetic trunk ganglia found

Back 33

On either side of spinal cord