What is polyphyodont dentition?

A polyphyodont is any animal whose teeth are continually replaced. In contrast, diphyodonts are characterized by having only two successive sets of teeth.

What is Monophyodont dentition?

The dentition of animals with two successions of teeth (deciduous, permanent) is referred to as diphyodont, while the dentition of animals with only one set of teeth throughout life is monophyodont.

Is a shark a polyphyodont?

Toothed fish like sharks are known as polyphyodonts, animals that have multiple sets of replacement teeth. Their tooth replacement process occurs in sort of a wave pattern: from the back of the jaw forward.

What is meant by dentition Definition?

1 : the development and cutting of teeth. 2 : the character of a set of teeth especially with regard to their number, kind, and arrangement — see tooth illustration.

What is pleurodont teeth?

Pleurodont is a form of tooth implantation common in reptiles of the order Squamata, as well as in at least one temnospondyl. The labial (cheek) side of pleurodont teeth are fused (ankylosed) to the inner surface of the jaw bones which host them.

What are Bunodont teeth?

bunodont. / (ˈbjuːnəˌdɒnt) / adjective. (of the teeth of certain mammals) having cusps that are separate and rounded.

Are molars Monophyodont?

Hint: The two teeth which are monophyodont are namely, premolars and molars. 2 Premolars and 3rd molars are absent in the primary set of teeth. Hence, they grow only in permanent sets of teeth, and thus are monophyodont.

What is the meaning of dentition in biology?

noun. the arrangement, type, and number of the teeth in a particular species. Man has a primary dentition of deciduous teeth and a secondary dentition of permanent teeth.

What is dentition Class 11?

Dentition is a term that is used to define the set of teeth, their number, size, and arrangement. For example, human dentition is described as: Heterodont dentition- having different types of teeth, as in incisors, canines, premolars, and molar. Thecodont dentition- the teeth are fixed in the socket of the jaw bone.

What is acrodont and pleurodont?

TEETH. Lizard teeth are classified as pleurodont or acrodont. Pleurodont teeth have longer roots with weak attachments to the mandible and no socket (Figure 8-3). Acrodont teeth have shorter roots with a firmer attachment, lack sockets (see Figure 8-3), and are fused with the bone itself.

What is acrodont pleurodont and Thecodont?

Generally there are two “extremes.” Teeth which are ankylosed to the jaw are referred to as acrodont, or pleurodont if fusion is to the side of the jaw bones. At the other extreme, teeth are said to be thecodont if they are set in sockets, without ankylosis.