Human Biology B – Mrs. Yates Disclosure Parent Permission Slip Rules
Be on time Respect - talking No cell phones No complaining Don’t misuse hall pass
SKELETAL SYSTEMHuman B – Mrs. Yates
Human skeleton from Andreas Vesalius's Fabrica (1543)
Bell Quiz Day 1
1. How many bones do you think are in the human body?
2. What is your largest bone? 3. What is your smallest bone? 4. Name five bones that you already
know 5. How many bones are you born with?
Bell Quiz Day 2 Define the following:
Anterior Lateral Posterior Sagittal
Define the following vocab words: Corac Carp Cervic Cox Condyl
Vocabulary
1. aur- 10. arthr(o)- 2. –poiesis 11. carp- 3. brachi- 12. cervic 4. oss- 13. dia- 5. burso 14. cox(a), pelv 6. –genesis 15. dactyl, digit 7. ax- 16. fov- 8. front- 17. scolio 9. corac- 18. condyl-
Aur Ear Auricle
Poiesis Production
Brachi Arm
Oss Bone
Burs(o) Bursa
Genesis Born, beginning
Ax Axis Axilla
Front Forehead Frontis
Arthr (o) Joint Arthrodia
Carp Wrist Carpal Tunnel
Cervic Pertaining to neck
cervix
Dia Across, through
Diachronic
Cox, pelv Hip, hip joint
Coxodynia
Fov Pit Fovea
Scolio Twisted Scoliosis
Corac Beak like Coracoid process
Condyl Knob
Dactyl Finger, toes
Axial Skeleton
Skull
Ribs
Vertebrae
Skull – 22 bones
Two parts Cranium bones - 8 Facial bones -14
Not fully developed at birth
Thickness ~ 2 mm
Frontal Male 2.954mm
Female 2.019mm
Occipital Male 3.573mm
Female 2.972mm
Right euryon Male
1.838mm
Female 1.961mm
Left euryon Male
1.724mm
Female 1.537mm
Cranium (8)– bones that enclose the brain
Cranium
A. Frontal bone B. Parietal bone (paired) C. Occipital bone D. Temporal bone (paired) E. Sphenoid (connects cranium to facial) F. Ethmoid (roof and sides of the nasal
passage)
Facial – (14) Bones not enclosing brain
Facial
G. Lacrimal (2) H. Nasal Bone (2) I. Zygomatic (2) Cheek bones J. Maxilla (2) upper jaw K. Mandible *Only movable joint in
the skull. M. Vomer – Nasal Septum Bone N. Palatine (2)
Color Code the Brain A-L and sutures (a,b,c)
Frontal Bone
Contains 2 sinuses
Frontal - damage
A) before surgery B) CT scans C) during surgery D) reconstruction
of frontal plates E) two years after
surgery
Parietal Bone - 2
Unusually aggressive forms of cutaneous squamous cell carcinoma are being increasingly recognized as a complication of HIV infection. We report the case of a 59-year-old male patient with advanced HIV infection who presented with a highly aggressive SCC lesion over the scalp area with destruction of the underlying parietal bone and fulminant clinical progression.
Occipital Bone
War of the roses - 1491
Temporal - 2
Temporal- Occipital region
Sphenoid (pg. 139) Batman Bone Contains sinuses
Ethmoid bone
Upper portion of nasal septum Contains sinuses
Vomer bone
Bottom part of nasal septum
Sutures (a,b,c)
Lines where bones meet, immovable joints.
Fontanels
Soft spots with no bones when babies are born. (Connective tissue)
As a fetus develops, its brain grows rapidly. The skull is growing as well but can not keep up. Fusion of the bones begins, but will complete after birth. A new born generally has 2 frontal bones, 4 occipital bones, and several sphenoid and temporal bones. These bones are held together by fontanels.
Foramen Magnum
Opening in occipital bone for spinal cord exit.
External Auditory Meatus
Opening in temporal bone for ear canals
Styloid Process
Sharp bone projection to help anchor muscles association with the tongue.
Mastoid Process
Projection from skull
Facial Bones
Lacrimal (2)
Thin and scale like Fragile Near tear ducts
Nasal Bone (2)
Two rectangles that form the bridge of the nose
Zygomatic Bone (2)
Cheek bones. ‘Zygomatic
Arch’ connects to the temporal bone.
Maxilla (2)
Form the floor of the nasal cavity and the roof of the oral cavity (hard palate).
Upper jaw
Mandible
Only moveable face bone
Ossicles
Bones of the ear Smallest bones in
body
Malleus Incus Stapes
Hammer Anvil Stirrup
Hyoid
Attachment for movement of the tongue
doesn’t touch any other bones
Only floating bone
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