W3 Osteology

Question 1

What is the cranium divided into?

Answer 1

Cranial Vault:

Upper portion

Cranial Base: inferior portion, that connects to spine

Cranial cavity: interior of the skull

Facial Skeleton: bones of the face

Acoustic skeleton: ear ossicles.

Regional anatomy: orbit, nasal cavity, oral cavity

Question 2

What are the anterior bones on the skull?

Answer 2

Frontal bone

Parietal bone

Temporal bone

Nasal bone S

penoid bone

Lacrimal bone

Ethmoid bone

Orbital process of palatine bone

Inferior nasal concha

Vomer

Maxilla

Mandible

Question 3

Where is the hyoid bone located?

Answer 3

Consists of lesser horn of hyoid bone and greater horn of hyoid bone.

Lies superior to the thyroid cartridge, it is a floating bone. Important attachment for muscles of the neck and floor of the mouth

Question 4

What are the sutures of the skull?

Answer 4

Frontonasal

Frontozygomatic

Zygomaticomaxillary

Temporozygomatic

Coronal, Sagittal Squamous

Lambdoid, Pterion

Intermaxillary (median palatine) transverse palatine.

Fontanelles: Anterior, Posterior, Mastoid, SPenoidal

Question 5

What are fontanelles?

Answer 5

Neonatal/postnatal skull only partly ossified, diamond shaped exists between the meeting of the bones.

Sphenoidal fontanelle

Anterior dontanelle

Posterior fontanelle

Mastoid fontanelle

Question 6

PICFrom a superior view of the internal skull where at the foramen?

Answer 6

Foramen cecum Anterior ethomodial foramen Foramina of cribiform plate Posterior ethmodial foramen Optic canal Superior orbital fissure Foramen rotundum Foramen ovale Foramen Spinosum Foramoen lacerum Carotid canal Internal acoustic meatus Jugular foramen Condylar canal Hypoglossal canal Foramen magnum