skull

Question 1

what makes up the neurocranium

Answer 1

cranial vault; the bony covering of the brain and its meninges, contains the proximal parts of cranial nerves and vasculature of the brain
-calvarium: skull cap
-basicranium: cranial base; frontal, ethmoid, sphenoid, occipital, parietals and temporals

Question 2

viscerocranium

Answer 2

bones of the facial skeleton
-derived by the mesenchyme
-forms anterior part of the cranium
-bones: mandible, ethmoid, vomer, maxillae, inferior nasal conchae, zygomatics, palatines, nasal, lacrimals

Question 3

the parietal bones have the 4 largest sutures

Answer 3

1.coronal suture: where parietal meets frontal bone
2. squamous suture: parietal meets temporal bone
3. saggital suture: right and left meet superiorly in the midline
4. lamboid suture: parietal meet the occipital bone posteriorly

Question 4

what is located at the base of the occipital bone

Answer 4

foramen magnum, hole where the inferior part of the brain connects with the spinal cord

Question 5

features of the occipital bone

Answer 5

-occipital condyles: articulate with C1 vertebra
-nuchal lines: anchor muscles of the back
-external occipital protuberance

Question 6

the sphenoid bone has a

Answer 6

central body with 3 unpaired processes
1. greater wings
2. lesser wings
3. pterygoid process of plates

Question 7

the coronoid process of the mandible articulates with

Answer 7

the temporalis bone

Question 8

the mandibular condyle of the mandible articulates with the ______ and forms

Answer 8

temporal bone
forms temporomandibular bone

Question 9

describe postnatal skull growth and what fontoneles are

Answer 9

fontoneles: allow skull compression and brain expansion during postnatal growth, anterior remains open until year 2

Question 10

sutures

Answer 10

immovable fibrous joints between bones of the calvarium

Question 11

synchondroses

Answer 11

immovable, cartilaginous joints between the bones of the skull base