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Skeletal System. Support, Attachment, Protection, Movement, Storage, Diseases. How many Bones do we have?. Average adult has 206 Bones Average baby has approximately 300 bones! (Say Whaaaaaaaaa ?!) Bones are not fully formed/fused until sometime between 13 and 18 years old. - PowerPoint PPT Presentation
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SKELETAL SYSTEM
Support, Attachment, Protection, Movement, Storage, Diseases
HOW MANY BONES DO WE HAVE? Average adult has
206 Bones Average baby has
approximately 300 bones! (Say Whaaaaaaaaa?!)
Bones are not fully formed/fused until sometime between 13 and 18 years old
INCREDIBLE BONES!!! (I WISH THIS SLIDE DESIGN HAD LOWERCASE LETTERS SO I COULD CAPITALIZE “INCREDIBLE BONES.”
Auditory Ossicles: malleus, incus, stapes Ethmoid Bone: Specifically the Cribriform
Plate Largest Bone: Femur Smallest Bone: Stapes (stirrup)
Pass around example Regeneribs! Periosteum intact, osteoblasts
propogatee Hyoid Bone:
Floating Ribs:
DA BONES
How did I get peer-pressured into swallowing this
giant bone?!
DEM’ BONES, DEM’ BONES GONNA WALK AROUND.
~20% of total body weight 6 main functions of our endoskeleton
Support: shape/framework (framing of a building)Attachment: muscles, tendons and ligamentsMovement: leverage for skeletal musclesProtection: Protects our guts (brain, cord, heart, etc)Blood Cell Production: Hematopoeisis (red marrow)Storage: Mineral storage (esp. Ca+)
ORGANIZATION OF LE’ SKELETON Axial Skeleton
(80)SkullOssicles (malleus,
incus, stapes)Hyoid BoneVertebral columnChest
Appendicular Skeleton (126)Shoulder girdleArms/HandsPelvic GirdleLegs/FeetsBAHAHA!
“feets”
SKULL (A.K.A. CRANIUM) Parts you gotta know!
FrontalTemporalZygomaticEthmoidMandibleMaxillaSphenoidParietalLagrimalNasalOccipital
VERTEBRAL COLUMN Types of
VertebraeCervicalThoracicLumbarSacral
WE’RE ALL CREATED EQUAL . . . . JK. Males =
AwesomeThicker/Longer
limbsLonger digital
bonesBrow RidgePelvic Girdle
Females = Weak SauceNarrower rib
cagesSmaller TeethLess angular
mandiblesLess pronounced
cranial features
DISEASES Bone Cancer Bone Tumors Arthritis Osteoporosis Osteogenesis
Imperfecta Fracture
SimpleCompound
Shoulda had a V8
THE INFAMOUS TERATOGEN! Thalidomide: Pros: Cures
Morning Sickness in Pregnant women.
Cons: Prevents the development of long bones (i.e. arm and leg bones don’t extend)
HOMOLOGY