The occipital bone is located in the posterior part of the skull. It's identified by the presence of the large foramen magnum. Parts It is composed of the following 4 parts: Squamous part 2 condylar parts Basilar part Squamous Part It's an enlarged plate above and behind the foramen magnum. It presents 2 [...]
Hyoid Bone Not really a part of the skull, this U-shaped bone lies in the very front of the neck between the mandible and the larynx in the level of the third cervical vertebra. It’s exceptional in the meaning that, it’s suspended from styloid processes of temporal bones by stylohyoid ligaments and it does not [...]
The clivus is a bony part of the cranium found at the skull base and is a shallow recession at the back of the dorsum sellae that inclines obliquely backwards. It creates a gradual sloping process at its junction with the sphenoid bone at the forward most part of the basilar occipital bone. Clivus [...]
It is an unpaired bone situated at the base of the skull. Its resemblance is of the shape of a butterfly or bat with outstretched wings. Sphenoid Bone Parts It is composed of the following 7 parts: A body. 2 lesser wings. 2 greater wings. 2 pterygoid processes. 2 pterygoid processes [...]
The thyroid cartilage is the largest among the laryngeal cartilages. It is created from a right and a left lamina, which are extensively isolated posteriorly; however, they converge and link anteriorly. The most superior point of the site of combination amongst the two wide flat laminae projects forward as the laryngeal prominence a.k.a. Adam’s apple. [...]
Posterior nasal spine is created where the two horizontal plates combine at the midline as well as protrudes back from the edge of the hard palate. The posterior margin of the horizontal plates along with the posterior nasal spine is related to connection of the soft palate. Posterior Nasal Spine Palpation Posterior Nasal [...]
The ethmoid bone is situated between 2 orbital cavities and is an unpaired delicate bone. It possesses a perforated (sieve-like) plate referred to as cribriform plate that is why it is called ethmoid bone (Gr. ethmoid = sieve-like). Parts The ethmoid bone is made from the following parts: Cribriform plate. Crista galli. Perpendicular plate. 2 [...]
The lacrimal bone a.k.a. os lacrimale is quadrangular and it is the smallest of all bones of the skull. In relation to development, the lacrimal bone is basic as it goes through two stages of development and is created with connective tissue at its center. Structure The lacrimal bones possess two surfaces as [...]
The study of osteology (bony skeleton) of head and neck creates the foundation to understand this region. The skeleton of head and neck includes skull, cervical vertebrae and hyoid bone. The pupils should study the skull and cervical vertebrae extensively linking their principal features to the bony points which can be felt in a living [...]
The second cervical vertebra, commonly known as C2 is also called the axis. It is a peculiar cervical vertebra which possesses distinctive attributes and significant relations that facilitates its detection. The odontoid process is its most protuberant aspect, which is the body of the atlas or C1 as an embryo. It is vital for rotation [...]