The median dorsal vessel on a worm carries the blood to the anterior end of the worm, while the median ventral vessel carries the blood to the posterior end of the worm.
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.
The dorsal side of a worm refers to the back or upper side of its body, opposite to the ventral side which is the belly or lower side. This orientation is typical of many invertebrates, including worms, where the dorsal side is often more pigmented or prominently marked compared to the ventral side.
You find the setea on the outside of the worm. It is the tiny bristles on the outside of the worm.
The worm is first both male and female the worm is in kingdom Animalia. The worm if you look at on and turn it over on its ventral side (bottom) you will see not to far away from the anterior side which is closet to the mouth the clitellum, it looks little lighter than the rest of the worm and it is not very long. the clitellum is a barrel shaped swelling that starts at the thirty second segment on the worm. this structures aids in the reproduction. Also it can tell us what side is the head and the tail. Talking about the head and the tail there are two different names for the head and the tail end of the worm, the head is called the anterior end and the tail is the posterior end of the tail. Now the first part of the worm is the mouth, the mouth sucks in dirt and then goes to the pharynx ,then through esophagus then trough the crop and then the gizzard and then the intestine then through the rest of the body. worms have two blood vessels dorsal and ventral blood vessel. the dorsal is top and ventral is bottom of the worm. The aortic arches help regulate the blood flow to the dorsal and ventral blood vessels. The nervous system, the worm has a ventral nerve chord running on the ventral side of its body. Telling it what type of surface its on. The worm can tell hot from cold that's why the stay in the dirt to keep cool, that's why is you ever saw a worm dried out on the side walk its because it needs the cool dirt to keep it cool. those are alot of the parts of the worn hope you learned alot from this.
the dorsal is along the back and is darker from the main blood stream, where as the ventral is along the front and is very light from the less blood in the certain vessel....so yeah
the main blood vessel in the body
The dorsal blood vessel is located on top of the intestinal track in a worm.
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.
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.
You can tell cause dirt comes out the dorsal side. the dorsal side is darker because its the worms main blood vessel like our aorta
Blood moves through the ventral blood vessel to the posterior of the body and through the dorsal vessel to the anterior of the body. The dorsal blood vessel contracts to push the blood back and then forward to the ventral vessel where a series of aortic arches act as hearts to move blood forward to the anterior end and through the capillaries.
i think it carries blood or oxygen to the brain
Yes because some parts of the exterior of the worms' skin are able to be seen with a naked eye!
Blood vessel on the bottom of a worm Blood vessel on the bottom of a worm
I think its dorsal. REALLY sure.
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.
In earthworms, the structure that functions similarly to the human heart is the dorsal blood vessel. This vessel acts as a pump, circulating blood throughout the worm's body. Unlike the human heart, which is a muscular organ, the dorsal blood vessel contracts rhythmically to propel the blood, helping to transport nutrients and oxygen to various tissues.