The Skul Spotlight Figure 7.4: Sectional Anatomy of the Skull : Part A Cranial a

Question

The Skul Spotlight Figure 7.4: Sectional Anatomy of the Skull : Part A Cranial and Facial Bones, Structures, and Foramina The 22 bones of the skull are organized into the 8 cranial bones and 14 facial bones. The skull serves multiple critical functions, such as cradling the delicate brain tissue and housing the major sensory organs. The foramina (holes) in the skull serve as passageways for nerves and blood vessels. Determine which of the following are a cranial or facial bone or a structure/foramina of one of these types. View Available Hint(s) Reset Help Carotid canal Nasal bone Styloid process Hypophyseal fossaFrontal bone Jugular foramen Mandible Palatine bone Cranial Facial Submit XIncorrect; Try Again; 2 attempts remaining

Explanation / Answer

Carotid canal:it's a passage through which carotid artery supplies blood to cerebral hemispheres.

Nasal bone: it's a facial bone which are two in number placed side by side between which is a bridge.

Styloid process: it's a process that projects below the ear .it's a structure that serves as an attachment for muscles.

Hypophyseal fossa:it is a depression in the sella tersica of sphenoid bone . Serves as a seat for pituitary gland.

Frontal bone:it's a cranial bone which consists of three parts namely squamous part which is the part of forehead,orbital part which is the part of orbital cavity,nasal part makes up the bony part of the nose.

Jugular foramen:it's a large foramen also called aperture in the base of the skull .it contains 9th 10th and 11th cranial nerve and internal jugular vein.

Mandible: it's a facial bone also called as lower jaw.its the largest bone and is placed in the lowest part of the front of the skull.it holds lower teeth in the depressions called as sockets.

Palatine bone:it's a' L ' shaped facial bone which forms the floor of the nasal cavity and the hard palate.its location is in between maxilla and sphenoid bone.they are two in number.

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