EXAM 5: Head and Neck Flashcards
What forms the skull
Cranial and facial bones
What are paired vs. unpairs bones?
Paired: Have 2 of them
Unpaired: Have 1 of them
What are the skull functions of the cranial bones
- Protect the brain
- Attachment point for myos
What are the skull functions of the facial bones
- Attachment point for myos
- Form the face
- Openings for special senses (eye and mouth)
- Provide openings for air/food (nose, mouth)
- Secures teeth
Frontal Bone:
- Unpaired
- Location: Anterior
- Special: helps to form orbit
what is the orbit
Eyesocket
Temporal Bone:
- Paired
- Location: lateral
- Special: part of zygomatic arch (cheekbone); part of temporomandibular joint
Occipital Bone:
- Unpaired
- Location: Posterior; base
- Special: has foramen magnum
Parietal bone:
- Paired
- Location: Superior; lateral
- Special: N/A
Ethmoid Bone
- Unpaired
- Location: Deep
- Special: Helps form orbit, nasal conchae, and nasal septum
Sphenoid Bone:
- Unpaired
- Location: Deep
- Special: Helps form orbit; Articulates with all other cranial bones
What are the cranial bones
- Frontal
- Temporal
- Occipital
- Parietal
- Ethmoid
- Sphenoid
What are the cranial sutures
- Sagittal
- Lambdoidal
- Coronal
- Squamosal
What does the sagittal suture connect?
2 parietal bones
What does the lambdoidal suture connect?
occipital and parietal bones
What does the coronal suture connect?
frontal and parietals
What does the squamosal suture connect?
connects the temporal and parietals
- have 2 (one on each side)
What type of joint are sutures
- Fibrous joint
- Synarthrotic joints
What are sutures
joint that connects bones in the skull
What are the facial bones
- Manidble
- Maxillary
- Zygomatic
- Palatine
- Nasal
- Lacrimal
- Vomer
Manidble
- Unpaired
- Location: Jawbone
- Special: part of temporomandibular joint
Maxillary
- Paired
- Location: Central
- Special: Articulated with other facial bones but not the mandible; part of hard palate: anterior
Zygomatic
- Paired
- Location: Cheekbone
- Special: Part of zygomatic arch and orbit
Palatine
- Paired
- Location: Oral Cavity
- Special: Hard palate: Posterior