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The dorsal side of an earthworm is darker than the ventral side because of the dorsal blood vessal that runs along the top of the digestive track and just under the skin. There is a ventral blood vessal, but it doesn't lie against the skin, but instead in between the ventral nerve cord and the digestive track.
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∙ 15y ago
Wiki User
∙ 12y agoAn earthworm doesn't really have a 'dorsal side'. It's just scientific jargon for top. Whatever side is facing up, is now the dorsal side.
Wiki User
∙ 12y agoVentral is the front, Dorsal is the back
Wiki User
∙ 6y agoThe ventral side of the earthworm.
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Does the earthworms ventral nerve cord traverse the entire length of the body?
No, they only have a ventral blood vessel.
What function in the earthworm has a similar function as the human heart?
The actual "pumping system" of a worm can be mistaken as a heart, but it has no chambers. They are actually aeortic arches that pump the blood down the ventral side of the worm and it returns on the dorsal vessel.
Where do the small nerves go when they branch from a ganglion of the ventral nerve cord on an earthworm?
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.
What is ventral-lateral?
Ventral-lateral is a medical term refering to the front (ventral) and side (lateral ) of a body structure. A broken bone in the arm can be described as showing a ventral-lateral angulation, meaning it is sticking to the front and the side.
The function of the earthworms blood vessels?
The earthorm has a closed circulatory system with five main blood vessels:Dorsal (above the digestive tract) - it moves blood forwardThe remaining four all move the blood to the rear of the earthworm: Ventral (beneath the digestive tract)Subneural Vessel (below the nerve cord)Right & Left Lateroneural vessels (either side of nerve cord)
Is the dorsal side of an earthworm lighter than the ventral side?
The ventral side is lighter than the dorsal.
Is the dorsal side of an earthworm lighter than the ventral?
The ventral side is lighter than the dorsal.
What is ventral and dorsal?
Ventral is the lower part of the body(light-colored on a earthworm)(stomachs on a human) and dorsal is the top(butts on a human)(darker side on a earthworm)
What is the ventral side of the earthworm?
the bottom side the bottom side the bottom side
Is the dorsal blood vessel different from the ventral blood vessel in an earthworm?
yes.
Why is the earthworm dissected dorsal side up?
Earthworm is an invertebrate hence it has its nerve chord at the "front" of its body, that is at the ventral surface.To avoid causing damage to the nerve chord,earthworm(invertebrate)is dissected dorsal side up.
What does the ventral nerve cord do in a earthworm?
there is not a ventral nerve cord
Are the setae on an earthworm segment paired?
Yes on lateral and ventral surfaces.
Which side is darker on woodlice the dorsal or ventral surface?
The dorsal side of an earthworm is darker than the ventral side. This is because of the dorsal blood vessal that runs along the top of the digestive track and just under the skin. There is a ventral blood vessel, but it doesn't lie against the skin, but instead in between the ventral nerve cord and the digestive track.
What is different between the top and bottom side of an earthworm?
how can you distinguish between the top and bottom side of an earthworm
What is the function of the ventral nerve cord in an earthworm?
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.
Does the earthworms ventral nerve cord traverse the entire length of the body?
No, they only have a ventral blood vessel.
