gender differences of the pelvis: why would this be?
DESCRIPTION
Gender Differences of the Pelvis: Why would this be?. More upright, narrow Inlet of true pelvis, thicker bones, larger acetabulum, pubic arch = 60-70°. Tilted forward, broad Inlet of true pelvis (birth canal), lighter/thinner bones, smaller acetabulum, pubic arch = 80-90°. Typical Male. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/1.jpg)
Gender Differences of the Pelvis: Why would this be?
Figure 5.24cTypical Male Typical Female
More upright, narrow Inlet of true pelvis, thicker bones, larger acetabulum, pubic arch = 60-70°
Tilted forward, broad Inlet of true pelvis (birth canal), lighter/thinner bones, smaller acetabulum, pubic arch = 80-90°
![Page 2: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/2.jpg)
You DO have to know these bones…
Figure 5.7
![Page 3: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/3.jpg)
…I’m getting dizzy…
Figure 5.9
![Page 4: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/4.jpg)
…that’s anatomy for you…it is possible!
Figure 5.11
![Page 5: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/5.jpg)
Orbits – what 7 bones?
Figure 7.9b
![Page 6: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/6.jpg)
Nasal Cavity
Figure 7.10a
Sphenoid
Frontal
Nasal
Inferior Nasal Concha
MaxillaPalatine
Ethmoid
![Page 7: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/7.jpg)
Nasal Septum
Figure 7.10b
![Page 8: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/8.jpg)
Paranasal Sinuses – hollow portions of skull
– Lighten the skull– Amplify voice– Continuity w/ respiratory tract leads to sinus infections– What 5 bones?
![Page 9: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/9.jpg)
The Hyoid Bone Only bone with no bone
articulations Moveable base for tongue Aids in swallowing and
speech
![Page 10: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/10.jpg)
The Fetal Skull is not fully formed
Fontanels—fibrous membranes connecting the cranial bones (a.k.a. soft spots)
Allows brain growth, slight compression during birth Convert to bone by 24 months
![Page 11: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/11.jpg)
The Vertebral Column
• Vertebrae named by location separated by intervertebral discs
• 7 cervical (neck)• 12 thoracic (articulate w/ ribs)• 5 lumbar (lower back)
Sacrum = 5 fused vertebrae
Coccyx = 3-5 fused vertebrae
7am breakfast, 12 noon lunch,5pm dinner?
![Page 12: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/12.jpg)
The Vertebral Column – changes shape between birth and walking
– Secondary curvatures of cervical and lumbar regions develop after birth
Primary curves
Secondary curves
Lordosis = exaggerated secondary lumbar curvature (often seen in pregnant women)Kyphosis = exaggerated primary thoracic curvature (humpback)Scoliosis = abnormal lateral curvatures
![Page 13: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/13.jpg)
Vertebral Column: Ligaments
Figure 7.14a
![Page 14: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/14.jpg)
Vertebral Column: Intervertebral Discs
Figure 7.14b
![Page 15: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/15.jpg)
Atlas (1st Cervical Vertebrae)
Figure 5.18a
Atlas = C1, Articulation with occipital condyle = “YES”
![Page 16: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/16.jpg)
Figure 5.9
![Page 17: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/17.jpg)
Axis (Second Cervical Vertebrae)
Figure 5.18a
Axis = C2, Dens articulation with Atlas = “NO”; also prevents
hyperextension of neck
a.k.a. odontoid process
![Page 18: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/18.jpg)
Cervical vertebrae have small openings for important nerves and vessels of the head
Figure 5.18b
Present in all vertebrae
Only in Cervical
Vertebrae
![Page 19: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/19.jpg)
Thoracic vertebrae have extra facets for rib articulation(look like giraffes?)
Figure 5.18c
![Page 20: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/20.jpg)
Lumbar Vertebrae have massive bodies to bear weight(Look like moose?)
Figure 5.18d
![Page 21: Gender Differences of the Pelvis: Why would this be?](https://reader036.vdocuments.net/reader036/viewer/2022062814/56816804550346895ddd869e/html5/thumbnails/21.jpg)
The Bony Thorax protects major organs
Consists of three parts Sternum Ribs
True ribs (pairs 1–7)
False ribs (pairs 8–12)
Floating ribs (pairs 11–12)
Thoracic vertebrae