Cross Section Of Earthworm

The median giant axon in the center is larger and conducts more rapidly than the two lateral giants next to it.

Cross section of earthworm. Small long cylindrical animal without legs or hard body parts. Cross section of the front of an earthworm in which they differ in the cuticle circular and longitudinal muscles the body cavity the seminal vesicles the dorsal blood vessel the aortic arch the. Internal anatomy of an earthworm cross section.

Cross section of earthworm segment. A discussion of the anatomy and function of multiple structures inside of an earthworm with a quiz. Between segments 32 and 37 is the clitellum a slightly bulged discoloured organ that produces a cocoon for enclosing the earthworm s eggs.

This game is part of a tournament. The first body segment segment number 1 features both the earthworm s mouth and overhanging the mouth a fleshy lobe called the prostomium which seals the entrance when the worm is at rest but is also used to feel and chemically sense the worm s surroundings. Also view the prepared slide of an earthworm cross section carolina z1250 and examine the large model worm.

Cut a thin cross section through your worm s intestinal area and view it with a dissecting scope. Outer part of the skin. Blood vessel situated in the rear part of an earthworm.

On the outside of the worm is a thin non living cuticle that is secreted by the underlying hypodermis. The earthworm body is divided into ringlike segments as many as 150 in l. Coelom this slide shows a stained cross section through the body of a common earthworm lumbricus terrestris.

The general colour of the body is brown but the dorsal surface is darker. You need to be a group member to play the tournament. The large structure that fills most of the body cavity is the intestine the giant axons appear as three large profiles gf near the dorsal surface of the cord seen better in the close up figure.