Axial Skeleton

where is the occipital bone?

where is the sphenoid bone?

where is the ethmoid bone?

where is the maxilla?

where is the mandible?

where is the zygomatic bone

where is the nasal bone?

where is the lacrimal bone?

where is the palatine bone?

roof of the mouth

where is the inferior nasal concha?

where is the vomer bone?

what are paranasal sinuses?

frontal, sphenoid, ethmoid, maxillary, reduces weight of skull, lined by a mucous membrane

what are some differences in the fetal skull?

• has fontanels(soft spots) to allow skull to mold,

• there is rapid growth of brain, smaller amount of cranium

  sutures appear with maturity

• deciduous teeth(baby teeth)

where is the hyoid bone?

Ushaped, does not articulate with other bones, anchoring for toungue

what is the vertebral column consist of

- 24 total vertebrae + sacrum and coccyx

- 7 cervical, 12 thoracic, 5 lumbar

what is vertebraes shape

flat, rounded body, spinous process posteriorly, transverse process laaterally, vertebral foramen

How many bones? and what is the purpose?

80 bones of head and neck, protects brain, spinal cord, hear/lungs. Your foramen magum is the hole in skull that spinal cord passes through

Where is the frontal bone?

where is the parietal bone?

where is the temporal bone?

what are the specific vertebrae and their function?

C1- articulates with occipital bone

C2- upward projection for rotation of head

C7- long blunt spinous process

T1-T12- articular facets to join with ribs

Sacrum, coccyx- no hole for spinal cord

Thorax bones: sternum

dagger shaped bone in middle of chest, manubrium, body, xiphoid process

Thorax: ribs

true ribs: 1-7

false ribs: 8-12

floating ribs: 11-12

what do the ribs articulate with

the body and transverse proceses of corresponding thoracic vertebrae