In leech, locomotion is performed by an Anterior sucker.

Which helps in locomotion in leech?

The muscles are composed of highly elastic spindle-shaped cells which help the leech to carry on locomotion. The musculature encloses the body cavity which is filled up by a peculiar kind of spongy connective tissue called botryoidal tissue.

What is Locomotory organ of leech?

Parapodia and setae are the locomotory organs of leech.

How does locomotion takes place in leech answer?

Looping or Crawling movement: This type of movement is brought about, by the contraction and relaxation of muscles. The two suckers, serve for attachment, during movement on a substratum. Swimming movement: Leeches swim very actively and perform undulating movements in the water.

How does locomotion occur in leech class 10?

Locomotion in leech takes place by (i) looping or crawling movement (ii) Swimming movement. ... This movement is brought about by the contraction and relaxation of muscles. The two suckers serve for attachment during movement on a substratum.

Leech: locomotion

20 related questions found

Which organ is responsible for excretion in leech?

Nephridia is the name of excretory of leech.

What is the Locomotory organ of paramecium?

The locomotory structure paramecium is cilia. They are characterised by the presence of thousands of cilia covering their body.

What is the excretory system of leech?

9. Excretory System of Leech: Excretory system consists of nephridia. There are seventeen pairs of nephridia one pair each in 6th and 22nd segments.

How does locomotion take?

Textbook solution. Locomotion allows an organism to travel from one point to another. Crawling and swimming are the two types of movement that facilitate the locomotion of a leech from one point to another.

What is the movement of leech?

Leeches move using their longitudinal and circular muscles in a modification of the locomotion by peristalsis, self-propulsion by alternately contracting and lengthening parts of the body, seen in other annelids such as earthworms.

What is the taxonomic position of leech?

Leeches are segmented parasitic or predatory worms that belong to the phylum Annelida and comprise the subclass Hirudinea. ... The majority of leeches live in freshwater environments, while some species can be found in terrestrial and marine environments.

What is the body structure 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.

Do leeches have longitudinal muscles?

The brain of most annelids (phylum Annelida; segmented worms, including the leeches... ... The leech thus elongates and the anterior sucker fastens to the surface. When the posterior sucker is released, a wave of contraction of the longitudinal muscles moves in a forward direction; this completes one cycle.

What are Parapodia used for?

Parapodia are paired, unjointed lateral appendages found in polychaete worms, which are often fleshy (especially in marine polychaetes) and used for locomotion, respiration, and other functions.

What are setae and Parapodia?

They may have two types of setae and parapodia for locomotion. Acicular setae provide support. Locomotor setae are for crawling and are the bristles that are visible on the exterior of the Polychaeta. Slow creeping movements of Nereis virens are carried out by the action of parapodia only.

How are an earthworm's circular and longitudinal muscles used in locomotion?

An earthworm moves using circular and longitudinal muscles, as well as bristles called setae. The earthworm can push the setae out of its body to grab the soil around it. To move forward, the worm uses its setae to anchor the front of its body and contracts the longitudinal muscles to shorten its body.

What is locomotion answer?

Locomotion is the ability of an organism to move from one place to another place.

What is locomotion give one example each of movement in plant and animal?

Movement and locomotion

Both plants and animals show movement. ... Example – Movement of limbs, bending of sunflower towards the sun. Entire body of the organism moves from one place to another. Example – Lions run in search of food, snakes crawl here and there.

What is the purpose of locomotion performed by animals?

Animals move for a variety of reasons, such as to find food, a mate, a suitable microhabitat, or to escape predators. For many animals, the ability to move is essential for survival and, as a result, natural selection has shaped the locomotion methods and mechanisms used by moving organisms.

What are the two parts of central nervous system of leech?

Leech CNS is included in the ventral blood sinus and is constituted by head ganglion, 21 body ganglia, and 7 fused tail ganglia (Figure 1(a)). The ganglia are joined by connectives that consist of two large lateral bundles of nerve fibers and a thin medial connective called Faivre's nerve.

What is the scientific name of leeches?

leech, (subclass Hirudinea), any of about 650 species of segmented worms (phylum Annelida) characterized by a small sucker, which contains the mouth, at the anterior end of the body and a large sucker located at the posterior end. All leeches have 34 body segments.

Which is involved in formation of Locomotory organ in paramecium?

Its whole body is covered with small hair-like filaments called the cilia which helps in locomotion. There is also a deep oral groove containing not so clear oral cilia. The main function of this cilia is to help both in locomotion as well as dragging the food to its oral cavity.

What are the organs of locomotion?

Summary

• The locomotor system is also known as the musculoskeletal system.
• It is made up of the skeleton, skeletal muscles, ligaments, tendons, joints, cartilage and other connective tissue.
• These parts work together to allow your body to move.

What is the Locomotory organ of flagella?

Flagella are the locomotory organelles of flagellate mastigophoran protozoans. They are mostly thread like projection on the cell surface. A typical flagellum consists of an elongated, stiff axial fiber called as axial filament or axoneme enclosed by an outer sheath.