week 5 Flashcards
immovable joints that fuse the skull together
sutures
facial bones
total 14 nasal 2 inferior nasal concha 2 lacrimal 2 palatine 2 zygomatic 2 maxila 2 vomer mandible
cranial bones
total 8 occipetal temporal 2 parietal 2 frontal spehnoid ethmoid
maxillae
2 paired bones that join to form upper jaw
articulate with every bone of the face except madible
osteoncrosis
bone death particularly in the mandible
can happen due to medications having an affect on osteoclastic activity
mental foramen
maintains nerve in mandible
mandible
largest,strongest,facial bone
tissue
a collection of similarly specialized cells
4 basic histological tissue types
epithelial
connective
muscle
nervous
2 types of epithelium
membranous and glandular
characteristics of epithelium
- Cellularity
- Polarity
- Attachment
- Avascularity
- Regeneration
how is basement membrane formed
epithelium and adjoining connective tissue
4 key functions of epithelium
protection
permeability
sensation
secretion
tissues that bone is composed of working together include (6)
osseous (bony) tisssue cartilage dense connective tissue epithelium adipose tissue nervous tissue
bone shapes and examples
5
long(limbs like femur,hemurus)
short(wrist)
flat(sternum,skull bones,pelvis)
irregular(facial bones and vertebrae)
sesamoid(patella)
connective tissue sheath surrounding the bone
has blood supply
periosteum
thin vascular membrane of connective tissue that lines inner surface of bony tissue
endosteum
mineral component of bone contributes to?
25% water
25% collagen fibres
50% crystalized mineral salts
mechanical strength
hardness
rigidity
basic metabollic unit of bone
osteon or havresian system
4 bone cells and functions
osteogenic cells- precursor of osteblast
osteoblasts create new bone
osteoclats reabsorb bone
osteocytes maintain bone
