Planaria Cross Section

Usually they have grey brown or black colors on the dorsal body surface the ventral surface uses to be paler.

Planaria cross section. A distinct head is present which is triangular in form and bears. A microscope slide showing a cross section of planaria. Cross section transmission electron microscopy tem images of planarian motile cilia reveals the typical axoneme structure with a 9 2 microtubule arrangement and other structures found in motile cilia from other organisms including radial spokes and outer and inner dynein arms.

Login or register now to maximize your savings and access profile information order history tracking shopping lists and. Hand lenses or stereomicroscopes. Commonly called planaria and is a fresh water form of cosmopolitan distribution.

Be aware that the sections shown in the review sheet are composites made from viewing hundreds of sections. Observers can go fishing for the invertebrates which frequent the sediments of ponds and lakes by simply tossing a piece of liver attached to a string into the water. When planariaeats it everts the pharynx sticking it out of the body to suck up bits of food.

You may wish to print the planarian anatomy sheets for student use. The body is elongated flattened and some what conical. Planaria are common to many parts of the world living in both saltwater and freshwater ponds and rivers.

This cross section shows the pharynx which is retracted into the pharyngeal cavity the empty white space surrounding the pharynx. 800 334 5551 live chat offline my account. It usually describes free living flatworms of the order tricladida triclads although this common name is also used for a wide number of free living platyhelminthes.

Planaria cross section planaria are primarily free living flatworms that are members of the class turbellaria. The pharynx itself is a thick muscular tube. Dugesia species have an elongated body with a slightly triangle shaped head.