Lab Module 5 Part 1 Axial Skeleton: Skull
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There are about _ bones altogether in our skeleton.
The axial skeleton is made up of _ , _ and _.
It forms the _ axis of our body.
Usually the axial skeleton consists of about _ bones.
- vertebral column
- thoracic cage
There a two set of bones that make up the skull. The _ bones surround the _ which encloses the _, and provides sites of attachment for head and neck muscles.
The top part is called _ or _, the lower part forms the _ , which has 3 fossae, called _,_, and _ cranial fossa.
The _ bones form the framework of the face, including cavities for special sens organs for _, _ , and _, and opening for _ and _ passage.
- cranial cavity
- cranial vault
- cranial base
8 Cranial bones:
- 2 parietal bones
- 2 temporal bones
- frontal bone
- occipital bone
- sphenoid bone
- ethmoid bone
The _ bone forms the anterior portion of the cranium and most of the _ cranial fossa.
It also forms the _ wall of the orbits and contains the air-filled _ sinus.
The _ bones form the superior and lateral aspects of cranial vault, while the _ bones form the inferolateral aspects of skull and parts of cranial floor.
The latter ones have 4 major areas called _ , _ , _ and _ region.
- squamous region
The _ bone forms most of the skull's posterior wall and the _ cranial fossa.
It forms a joint with the _ vertebra.
The _ bone is a very complex, bat-shaped bone.
It's called a _ bone, because it articulates with all other cranial bones.
Its 3 pairs of processes are called _ and _ _ , and _.
The deepest skull bone is the _ bone.
It forms part of the superior part of the _ septum and the roof of the _ cavity, and contributes to the medial wall of the _ .
Jagged lines that connect the frontal, occipital and temporal bones of the cranial vault are called _.
Connects parietal bones and frontal bone:
Connects the parietal bones and occipital bone:
Connects parietal and temporal bones on each side of skull:
Suture between right and left parietal bone:
Tiny irregularly shaped bones within sutures are called _ bones.
There are _ facial bones.
The 2 _ bones or _ are fused medially to form the _ jaw and the central portion of the facial skeleton.
They articulate with all other facial bones except the _ .
They connected laterally to the _ bones or _.
The bridge of the nose is formed by the _ bones, whereas the _ bones form part of the medial wall of the _ .
The 2 _ bones are part of 3 skull openings.
They form the posterior one-third of the _ which separates _ and _ cavity, the posterolateral wall of the _ cavity, and contribute to the _ .
- hard palate
The _ , which form part of the lateral walls of the nasal cavity, are the smallest facial bones.
The pow-shaped _ is part of the lower part of the _.
- inferior nasal choncha
The only bone of the skull that can move freely is the _ .
IT's the largest and strongest bone of the face, because it has to withstand mechanical stress when we chew.
Its connection with the temporal bones is called _ joint.
- temporamandibular (TMJ)
The _ house the eyes and lacrimal glands are the sites of attachment for eye muscles.
7 bones that form the orbit:
- palatine bones
The _ cavity is even more complex
The roof, lateral walls and floor are formed by parts of one cranial bone (_) and 3 facial bones (_ ,_ , _) .
The nasal _ consists of a bony part (_ ,_ ) and the _ _.
- inferiornasal conchae
- anterior septal cartilage
_ sinuses are mucosa-lined, air-filled spaces that lighten the skull and enhance resonance of the voice.
They are called _, _, _, and _ sinus.
The only _ bone is the only bone in the body that is not connected directly with any other bone.
It's an attachment site for muscles of _ and _.
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