What is the function of urostyle?

It plays a major role in transmitting thrust from the hind limbs to the axial column during limb-driven locomotion (5, 6). The urostyle articulates with the posterior end of the sacrum and is a composite structure, comprising an ossified hypochord ventrally and a coccyx dorsally (7, 8).

What is meant by urostyle?

: a long unsegmented bone that represents a number of fused vertebrae and forms the posterior part of the vertebral column of frogs and toads.

Where is the urostyle bone found?

The post-sacral part of the spinal column ossifies continuously, forming an unsegmented cylindrical rod, the urostyle. The urostyle is a long rod-like bone forming the posterior unsegmented continuation of the vertebral column.

What is urostyle in zoology?

noun. Zoology. A long bone formed from fused vertebrae at the base of the vertebral column in some lower vertebrates, especially frogs and toads. ‘The caudal vertebrae have been fused into a single rod-shaped skeletal element (the urostyle or coccyx) that lies between the ilia, in effect moving the tail internally.

Is Frog Ectotherm or Endotherm?

Frogs are ectothermic amphibians who are unable to regulate their temperatures internally like birds or mammals. Instead they need to warm up using other things outside their bodies- this action is called thermoregulation. Ectotherms use behavioural mechanisms to control their body temperatures.

Why do frogs not have ribs?

Frogs do not have ribs nor a diaphragm, which in humans helps serve in expand the chest and thereby decreasing the pressure in the lungs allowing outside air to flow in. This is because the lungs, which only adults have, are poorly developed.

Is frog Ectotherm or Endotherm?

What is urostyle Canal?

Urostyle is a long rod shaped bone situated at the back of the ninth vertebra. The concave part of the front end of the urostyle remains attached with the convex part of the ninth vertebra. There is very fine neural canal between this concave facet and neural crest.

What is the difference between frogs and toads?

Frogs have long legs, longer than their head and body, which are made for hopping. Toads, on the other hand, have much shorter legs and prefer to crawl around rather than hop. Frogs have smooth, somewhat slimy skin. Toads have dry, warty skin.

What animal is an Ectotherm?

Ectotherm, any so-called cold-blooded animal—that is, any animal whose regulation of body temperature depends on external sources, such as sunlight or a heated rock surface. The ectotherms include the fishes, amphibians, reptiles, and invertebrates.

Are frogs asexual?

All frogs reproduce sexually, and all hatch from eggs. In almost all frogs, egg fertilization happens outside the female’s body instead of inside. The female releases her eggs and the male releases his sperm at the same time. But in some species, males and females are hard to tell apart.

What animals do not have ribs?

Other animals Not all species possess both types of rib, with the dorsal ribs being most commonly absent. Sharks, for example, have no dorsal ribs, and only very short ventral ribs, while lampreys have no ribs at all. In some teleosts, there may be additional rib-like bones within the muscle mass.

What is the function of dense connective tissue?

Dense Connective Tissue. In the dense connective tissue, fibroblast cells and fibres are compactly packed. Their main function is to support and transmit mechanical forces. They are somewhat less flexible than loose connective tissue. On the basis of the arrangement of collagen fibres, they are divided into two types:

Which is an example of a specialised connective tissue?

Specialised Connective Tissue Other than these, there are supportive connective tissues, that help in maintaining correct posture and support internal organs, e.g. cartilage and bone. Blood and lymph are fluid connective tissues that circulate in the body and help in interaction and communication among all the organs.

How are connective tissues support the transport of fluid?

Transport of fluid, nutrients, waste, and chemical messengers is ensured by specialized fluid connective tissues, such as blood and lymph. Adipose cells store surplus energy in the form of fat and contribute to the thermal insulation of the body.

How is the ground substance used in connective tissue?

The ground substance acts as a fluid matrix that suspends the cells and fibers within the particular connective tissue type. Connective tissue fibers and matrix are synthesized by specialized cells called fibroblasts.

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