lol, are you doing sections 1 and 2 for mollusks and segmented worms?
The brain and spinal cord
The spinal cord is not a bone. It is nerve fibres and associated tissue enclosed in the spine.
Obturator Nerve, Obturator Artery, and Obturator Vein.
Vertebral Foramen - JSO
gray commissure
there is not a ventral nerve cord
lol, are you doing sections 1 and 2 for mollusks and segmented worms?
An earthworm has a paired brain attach to it nerve cord, that flows to its ganglia. The Clitellum ( the ring or band on the worm) is were the worm senses things. An earthworm can also not feel pain.
an earthworm's nerve cord is directly opposite that of a human's. the earthworm's nerve cord is along the ventral side (underside) of its body and the human's nerve cord is on the dorsal side (upperside) of the body along all of the internal organs
whayt does cords main
right on the 7th segment
you go to scarlett?
ventral nerve cord
The ventral nerve cord runs throughout an earthworm's body. When they start to branch from ganglion the nerve cords are still present throughout the segments.
it drains blood from the nerve cord n' stuff :)
The ventral nerve cord makes up nearly all of the nervous system in the earthworm. It goes from the anterior (front) end to the posterior (back) end. It's function is simple; it's the nerves in the worm! If dissected, the nerve cord looks like a thin white line on the ventral (belly) side on the inside of the skin.
It't the Ganglia (brain)