spinal cord cross sections

which regions have more grey matter

cervical and lumbar because they are closer to extremities

viceral

referring to vital internal organs

somatic

skin, bones and muscles

not organs

lateral horn of grey matter

visceral efferent fibers- gives motor function to glands, blood vessels and smooth muscle

anterior white commissure

links right an left side of white matter

ventral lateral sulcus

white matter- exit site of ventral roots

ventral medial fissure

white matter where anterior spinal artery comes in

what are the entry sites for dorsal roots

dorsal median sulcus, dorsal intermediate sulcus, dorsal lateral sulcus

ventral horn of grey matter

grey matter- where somatic efferent motor fibers exit

alpha and gamma neurons head toward striated muscle

commissure of grey matter

links left and right sides of grey matter