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What is the ventral side of the earthworm?
The ventral side of an earthworm refers to the underside of its body. It is the side that is typically lighter in color and is in contact with the ground as the earthworm moves. You can identify the ventral side by looking for the earthworm's central nerve cord running along its length.
What is different about the ventral side of an earthworm?
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.
Where is the central nerve cord located in an earthworm?
The central nerve cord in an earthworm is located on the ventral side of its body, running along the underside. It is part of the earthworm's nervous system and helps in coordinating movement and responses to stimuli.
How does sperm from one earthworm enter another earthworm for cross-fertilization?
Two worms come together along their ventral sides and become temporarily joined by the secretion of a "slime tube". Sperm is discharged from the seminal vesicles of both Worms's long seminal grooves on the ventral body surfaces, and enter the seminal receptacles of the other worms.
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.
How does the position of a worms nerve cord compare with your nerve cord?
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
The ventral surface of a starfish is called?
the ventral surface of a starfish is called oral You Jerk.
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 are the parts of earthworms nervous system?
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.
Which aponeurosis travels along the ventral abdominal midline?
The linea alba is the aponeurosis that travels along the ventral abdominal midline.
What do the bristles on the underside of the earthworm's body do?
The bristles along the body of an earthworm are called the Setae, they are used as anchors as the earthworm moves along. The earthworms will anchor the rear of the body as it extends the front then anchor the front of the body as it contracts the rear. The setae are extended and contracted in sequence to match the movement of the body.
What are ventral osteophytes?
As disk degeneration occurs in the spinal vertebrae, mechanical stresses result in osteophytic bars (osteophytes) which form along the ventral aspect of the spinal canal. These are sometimes called parrot beaks because of their shape.
