What are the characteristics of a leech?

What are the characteristics of a leech?

Leeches are segmented worms with suction cups at each end. Their bodies are flattened, much wider than they are thick. They are usually dark colored, often brown or sometimes black or dark green. Some species have no markings, others have spots and stripes.

What is Hirudinaria granulosa?

Hirudinaria granulosa is a common Indian leech found in freshwater tanks, ponds, lakes, swamps, and slow streams. It is sanguivorous (blood-sucking) sucking the blood of fishes and frogs, ands also of cattle or human beings when they enter the pond.

What is the medical significance of the Hirudo medicinalis?

Hirudo medicinalis is the common parasite that has medical importance. Leeches especially Hirudo medicinalis keep circulation of blood in tissue during replantation and without this work, cells will be dead thus failure of tissue reconnecting.

Does Hirudinaria have setae?

Botryoidal tissue is present just below the longitudinal muscular layer. 8. Parapodia and setae absent.

What are the adaptive features of leech?

Leeches have adapted a unique wave-like motion that they use to swim through the water and fish like northern pike and large mouth bass are often attracted by it. H. medicinalis also uses this characteristic motion to get around in the water quite elegantly.

What is the structures of leech?

Leeches are hermaphrodites. Their segmented body consists of head segments containing the anterior brain and the sucker, midbody segments with ganglia and reproductive organs and posterior segments that are fused together posterior to the sucker.

What is the function of posterior in Hirudinaria?

iv) Suckers: Body bears 2 suckers. They anterior sucker or oral sucker is oval and ventrally-directed, formed, by the first 3 segments, it includes mouth. At the posterior end of body a circular and highly muscular posterior or anal sucker is formed by fusion of seven body segments, meant for attachment and Locomotion.

What is the classification of Hirudinaria?

The Asian medicinal leech includes Hirudinaria manillensis, and the North American medicinal leech is Macrobdella decora….

How does the Hirudo therapy help in treating various ailments?

Research has shown that leech therapy can play a role. The Hirudin substance in leech saliva thins the blood and keeps it from clotting. Since people with diabetes tend to have thicker blood, Hirudin can help relieve the pressure on the heart and cardiovascular system by thinning the blood.

What is the meaning of Hirudinaria?

Hir·u·din·e·a. (hir’ū-din’ē-ă), The leeches, a class of worms (phylum Annelida) with flat, segmented bodies, a sucker at the posterior end, and often a smaller sucker at the anterior end; they are predatory on invertebrate tissues, or feed on blood and tissue exudates of vertebrates.

What is the common name of Hirudinaria granulosa?

Indian cattle leech is the common name of Hirudinaria granulosa.

What is the parasitic adaptations in the leeches?

Leeches lead a parasitic mode of life, by sucking the blood of vertebrates. The adaptations are listed below: The three Jaws, inside the mouth, causes a painless Y – shaped wound in the skin of the host. The salivary glands produce Hirudin, which does not allow the blood to coagulate.

What do you need to know about Hirudinaria granulosa?

In this article we will discuss about Hirudinaria Granulosa:- 1. Habit and Habitat of Hirudinaria Granulosa 2. External Features of Hirudinaria Granulosa 3. Body Wall 4. Locomotion 5. Digestive System 6. Coelom 7. Hemocoelomic System 8. Respiratory System 9. Excretory System 10. Nervous System 11. Sense Organs 12. Reproductive System 13.

What happens to the granulosa lutein in the corpus luteum?

During the regression of the corpus luteum, the granulosa lutein cells degenerate and are replaced with collagenous scar tissue. Because of its white color, the former corpus luteum now becomes known as the corpus albicans (white body).

What are the external features of a Hirudinaria?

2. External Features of Hirudinaria Granulosa: The body of Hirudinaria is soft, vermiform, elongated, bilaterally symmetrical and metamerically segmented. In a state of extension the body is dorsoventrally flattened and appears almost strap-shaped but in a state of contraction, the body becomes more or less cylindrical.

What kind of food does the Hirudinaria eat?

Though many species are blood-suckers (ectoparasitic) yet a large number are not ectoparasitic but are predatory and feed on worms, snails and insect larvae. 2. External Features of Hirudinaria Granulosa: The body of Hirudinaria is soft, vermiform, elongated, bilaterally symmetrical and metamerically segmented.