Question

Briefly explain about skull​

Answer 1

Answer:

- Skull is the upper most part of our skeletal system in which our main part of our body named brain is present there.

- Skull is made by hard carbonates of calcium which protects our brain very well.

- Between brain and skull a fluid is present named celebrospinal fluid in layer.

- Its structure is in such a way that hole brain can be protects from all sides.

Answer 2

Answer:

• SKULL,OR CRANIUM, IS A SET OF BONES THAT MAKE UP HEAD OF A VERTEBRATE.
• IT SUPPORTS THE STRUCTURE OF THE FACE AND FORMS A PROTECTIVE CAVITY FOR BRAIN.

• IT ALSO FIXES DISTANCE BETWEEN EYES AND EARS .THIS ALLOWS STEREOSCOPIC VISION AND HELPS THE BRAIN TO JUDGE DIRECTION AND DISTANCE OF SOUNDS.
• IN SOME ANIMALS SKULL THEY HAVE A DEFENSIVE FUNCTION. THE FRONTAL BONE IS WHERE THE HORNS ARE MOUNTED.
• A SKULL IS MADE UP OF NUMBER OF JOINED FLAT BONES .IN HUMANS ,ADULT SKULL IS NORMALLY MADE UP OF 28 BONES . SKULLS CAN BE CLASSIFIED ON THE BASIS OF FENESTRA OR OPENING IN A SKULL. THERE ARE 5 TYPES OF FENESTRA:

1. ANTORBITAL FENESTRA
2. MANDIBULAR FENESTRA
3. QUADRATOJUGAL FENESTRA
4. SUBSQUAMOSAL FENESTRA
5. TEMPORAL FENESTRA