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Cranial cavity

 
Cranial Cavity

 
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Cranial cavity
 
 
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The cranial cavity, or intracranial space, is the space formed inside the skull
Skull

The skull is a bone structure found in the head of many animals. The skull supports the structures of the face and protects the head against injury....
. The brain
Brain

The brain is the center of the nervous system in all vertebrate, and most invertebrate, animals. Some primitive animals such as cnidarian and echinoderm have a decentralized nervous system without a brain, while sponges lack any nervous system at all....
 occupies the cranial cavity, which is lined by the meninges
Meninges

The meninges is the system of Mesotheliums which envelops the central nervous system. The meninges consist of three layers: the dura mater, the arachnoid mater, and the pia mater....
 and which contains fluid to cushion blows.

Eight fused cranial bones together form the cranial cavity: the frontal
Frontal bone

The frontal bone is a bone in the human skull that resembles a Cockle in form, and consists of two portions:* a vertical portion, the squama frontalis, corresponding with the region of the forehead....
, occipital
Occipital bone

The occipital bone, a saucer-shaped membrane bone situated at the back and lower part of the skull, is trapezoid in shape and curved on itself. It is pierced by a large oval aperture, the foramen magnum, through which the cranial cavity communicates with the vertebral canal....
, sphenoid
Sphenoid bone

The sphenoid bone is a bone situated at the base of the skull in front of the temporal bone and basilar part of the occipital bone.The sphenoid bone is one of the seven bones that articulate to form the orbit ....
 and ethmoid bones, and two each of the parietal
Parietal bone

The parietal bones are bones in the human skull and form, by their union, the sides and roof of the cranium. Each bone is irregularly quadrilateral in form, and has two surfaces, four borders, and four angles....
 and temporal
Temporal bone

The temporal bones are situated at the sides and base of the skull.The temporal bone supports that part of the face known as the temple ....
 bones.

The capacity of an adult human cranial cavity is 1,200-1,700 cm3.








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Encyclopedia


The cranial cavity, or intracranial space, is the space formed inside the skull
Skull

The skull is a bone structure found in the head of many animals. The skull supports the structures of the face and protects the head against injury....
. The brain
Brain

The brain is the center of the nervous system in all vertebrate, and most invertebrate, animals. Some primitive animals such as cnidarian and echinoderm have a decentralized nervous system without a brain, while sponges lack any nervous system at all....
 occupies the cranial cavity, which is lined by the meninges
Meninges

The meninges is the system of Mesotheliums which envelops the central nervous system. The meninges consist of three layers: the dura mater, the arachnoid mater, and the pia mater....
 and which contains fluid to cushion blows.

Eight fused cranial bones together form the cranial cavity: the frontal
Frontal bone

The frontal bone is a bone in the human skull that resembles a Cockle in form, and consists of two portions:* a vertical portion, the squama frontalis, corresponding with the region of the forehead....
, occipital
Occipital bone

The occipital bone, a saucer-shaped membrane bone situated at the back and lower part of the skull, is trapezoid in shape and curved on itself. It is pierced by a large oval aperture, the foramen magnum, through which the cranial cavity communicates with the vertebral canal....
, sphenoid
Sphenoid bone

The sphenoid bone is a bone situated at the base of the skull in front of the temporal bone and basilar part of the occipital bone.The sphenoid bone is one of the seven bones that articulate to form the orbit ....
 and ethmoid bones, and two each of the parietal
Parietal bone

The parietal bones are bones in the human skull and form, by their union, the sides and roof of the cranium. Each bone is irregularly quadrilateral in form, and has two surfaces, four borders, and four angles....
 and temporal
Temporal bone

The temporal bones are situated at the sides and base of the skull.The temporal bone supports that part of the face known as the temple ....
 bones.

The capacity of an adult human cranial cavity is 1,200-1,700 cm3.

See also

  • Intracranial pressure
    Intracranial pressure

    Intracranial pressure, , is the pressure in the cranium and thus in the brain tissue and cerebrospinal fluid ; this pressure is exerted on the brain's intracranial blood circulation vessels....


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