chondrocranium


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Related to chondrocranium: dermatocranium, splanchnocranium, desmocranium

chondrocranium

 [kon″dro-kra´ne-um]
the cartilaginous cranial structure of the embryo from the seventh week to the middle of the third month, when it is a unified cartilaginous mass without clear boundaries indicating the limits of future bones.

chon·dro·cra·ni·um

(kon'drō-krā'nē-ŭm),
A cartilaginous cranium; the cartilaginous parts of the developing cranium.
[chondro- + G. kranion, skull]

chondrocranium

/chon·dro·cra·ni·um/ (-kra´ne-um) that part of the neurocranium formed by endochondral ossification and comprising the bones of the base of the skull.

chondrocranium

(kŏn′drō-krā′nē-əm)
n. pl. chondrocra·niums or chondrocra·nia (-nē-ə)
1. The cartilaginous cranium of an embryo before ossification.
2. A portion of the embryonic cranium forming the bones of the base of the skull and eventually undergoing ossification.

chondrocranium

Anatomy The bones of the base of the brain which are formed by endochondral ossification

chon·dro·cra·ni·um

(kon'drō-krā'nē-ŭm)
A cartilaginous cranium; the cartilaginous parts of the developing cranium.
[chondro- + G. kranion, skull]

chondrocranium

the cartilaginous original cranium surrounding the brain of the embryo, most of which is subsequently replaced by bone in further development.

chondrocranium

the cartilaginous cranial structure of the embryo in early pregnancy when it is a unified cartilaginous mass without clear boundaries indicating the limits of future bones.
References in periodicals archive ?
One attachment is located anterior to the chondrocranium at the anterior trabeculae, another attachment is at the polar bodies, and the third is a posterior attachment at the otic capsule (containing the inner ear).
However, systematic deposits of calcium phosphate have also been found in chondrocranium, jaws, visceral arches, fin cartilage, claspers, neural and haemal arches (Clement, 1992).
The chondrocranium of the embryo was evidently damaged and foreshortened by the general compression of its snout.