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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 blood vessel carries blood away from the heart of a earthworm?
There are two. The main one which is viewable through the skin is the dorsal blood vessel. The smaller one found under the intestine is the ventral blood vessel.
Is the dorsal blood vessel or ventral blood vessel larger in earthworms?
I think its dorsal. REALLY sure.
What is the dorsal blood vessel and the ventral blood vessel?
I always got dorsal (down the back or spine) and ventral (down the underside) confused, until I thought of an easy way to remember it. The ventral goes down to where the animal "vents" (poops). So the dorsal blood vessel is the vessel that runs down the back, while the ventral blood vessel runs down the underside.
What is the dark line on the dorsal side of the eartworm called?
The dark line on the dorsal side of an earthworm is called the dorsal blood vessel or the dorsal blood vessel line. It is part of the earthworm's circulatory system and helps transport blood throughout its body.
What is the pathway of the blood through the parts of the earthworm's ciruclatory system?
Earthworms intake oxygen through their skin into the blood of their dorsal vessel. The dorsal vessel carries the oxygenated blood towards the aortic arches in the front of the worm. The aortic arches serve as the worm's heart, pumping blood through the ventral vessel toward the rear of the worm. Smaller vessels carry the blood from the ventral vein to the tissues and back to the dorsal vein.
The dorsal and ventral blood vessel are part of what system?
digestive
What is the definition of median ventral vessel?
Breaking it down, Median would mean in the middle, ventral has something to do with the abdomen (compare ventral and dorsal, dorsal means back), and vessel would be a duct or canal. So, it would be the canal in the middle of the abdomen.
What is the function of the dorsal blood vessel in an earthworms?
To carry the blood to all parts of the earthworm.
What is the function of the dorsal blood vessel?
This artery is called the dorsal aorta and it is a main artery leading from the heart. It divides and branches out to smaller arteries that ensure that all of the body is supplied with oxygen.
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.
Does the earthworms ventral nerve cord traverse the entire length of the body?
No, they only have a ventral blood vessel.
