Worm Anatomy A worms body is made up of many segments called ‘annuli’. The length of a worms body has muscles which contract and relax which enables the worm to move along a surface. The ‘annuli’ are covered in tiny hairs called ‘setae’ which help the worms movement.
Not necessarily in that order:) The worm has a pointed head and a slightly rounded body. The rings on its body are called segments. Earthworms have no protruding body parts making the worm very contour which enables them to pass through the soil with ease and to also squeeze in between tiny cracks.
Place earthworm in the dissecting tray & rinse off the excess preservative. Identify the dorsal side, which is the worm’s rounded top, and the ventral side, which is its flattened bottom. Turn the worm ventral side up, as shown in the earthworm anatomy diagram below. 3.
Parts of the Brain and Their Functions. Cerebrum. The cerebrum is the largest portion of the brain, and contains tools which are responsible for most of the brain’s function. It is divided into four sections: the temporal lobe, the occipital lobe, parietal lobe and frontal lobe.
The outer parts control the more emotional and thought based functions. While the inner and lower parts of the brain control simpler and more basic functions like breathing and blood pressure. Now we will take a trip through the different human brain parts, exploring their function.
Although each structure has a distinct function, they work together to control all functions of the body. The brain is made up of 3 essential parts: Cerebrum, Cerebellum, and Brainstem. The cerebrum is the largest part of the human brain. It has a rough surface (cerebral cortex) with gyri and sulci.