Frontal
bone
1.
Anatomical
points:
· Squamous
part of frontal bone lies vertically
· Orbital
plates are directed downward and horizontally
· Nasal
spine is directed downward and forward
2.
Morphological
type: pneumatic flat bone
3.
Structure
of bone : Frontal bone is formed by inner and outer table (compact bone)
and middle diploe (sgongy bone)
4.
Ossification
: intramembranous
ossification (it is ossify from membrane )
5.
Development : Neural
crest ( derived from ectoderm)
· Squamous part:
-
External
surface of squamous part : Frontal tuberosity / supercilliary arch /
supraorbital margin/ superobital notch or foramen / glabella
-
-
Internal
surface of squamous part : impression for cerebral sulci and gyri /
sagittal sulcus or groove for superior sagittal sinus / frontal crest / foramen
caecum
- · Orbital part,
· · Zygomatic processes
· Nasal notch : name of the bones
articulate with nasal notch
· Right side (from medial to lateral ) right
nasal bone, right frontal process of
maxilla and right lacrimal bone
· Left side (from medial to lateral ) left
nasal bone, left frontal process of
maxilla and left lacrimal bone
·
· Ethmoidal notch: name of the bone articulate with ethmoidal
notch?
· Ethmoid notch is situated in between two
orbital plates and articulated by cibriform plate of ethmoid
7.
What is
metopic suture?
8.
Which
bones are articulated with nasal notch:
9.
Which
bone is articulated with ethmoid notch
10.
coronal suture: which bones forms this suture,
11.
Foramen
related to this bone and structure passing through it
12.
Show
lacrimal fossa, what structure lodge within it:
13.
Lacrimal
gland: Nerve supply
No comments:
Post a Comment