Definitions for dermal bone
der·mal bone

WiktionaryRate this definition:3.0 / 1 vote

1. dermal bonenoun

   Bone derived from intramembranous ossification, defining essential components of the vertebrate skeleton including the skull, jaws, gills, fins, and exoskeleton.

WikipediaRate this definition:0.0 / 0 votes

1. Dermal bone

   A dermal bone or investing bone or membrane bone is a bony structure derived from intramembranous ossification forming components of the vertebrate skeleton including much of the skull, jaws, gill covers, shoulder girdle and fin spines rays (lepidotrichia), and the shell (of tortoises and turtles). In contrast to endochondral bone, dermal bone does not form from cartilage that then calcifies, and it is often ornamented. Dermal bone is formed within the dermis and grows by accretion only – the outer portion of the bone is deposited by osteoblasts. The function of some dermal bone is conserved throughout vertebrates, although there is variation in shape and in the number of bones in the skull roof and postcranial structures. In bony fish, dermal bone is found in the fin rays and scales. A special example of dermal bone is the clavicle. Some of the dermal bone functions regard biomechanical aspects such as protection against predators. The dermal bones are also argued to be involved in ecophysiological implications such as the heat transfers between the body and the surrounding environment when basking (seen in crocodilians) as well as in bone respiratory acidosis buffering during prolonged apnea (seen in both crocodilians and turtles). These ecophysiological functions rely on the set-up of a blood vessel network within and straight above the dermal bones.

WikidataRate this definition:0.0 / 0 votes

1. Dermal bone

   A dermal bone or membrane bone is a bony structure derived from intramembranous ossification forming components of the vertebrate skeleton including the skull, jaws, gills, fins and exoskeleton. In contrast to endochondral bone, dermal bone does not form from cartilage that then calcifies. Dermal bone is formed within the dermis and grows by accretion only – the outer portion of the bone is deposited by osteoblasts. The function of some dermal bone is conserved throughout vertebrates, although there is variation in shape and in the number of bones in the skull roof and postcranial structures. In bony fish, dermal bone is found in the fin rays and scales. Special examples of dermal bones include the clavicle, patella, and os cordis.

How to pronounce dermal bone?

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How to say dermal bone in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of dermal bone in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of dermal bone in Pythagorean Numerology is: 8

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Dermal_Bone
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Dermal_Bone
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=dermal bone