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BIOD 151 Module 4 Lab Notes 2024 – 2025 Complete Guide Portage Learning
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BIOD 151 Module 4 Lab Notes 2024 – 2025 Complete Guide Portage Learning
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lOMoAR cPSD| 42147428BIOD 151 Module 4 Lab Notes 2024
– 2025 Complete Guide Portage
Learning
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ANATOMY AND PHYSIOLOGY
Module 4- Lab Notes
The human skeleton is divided into:
1. Axial Skelton
2. Appendicular Skeleton
The total bones in the entire skeleton is approximately 206, it can vary
because of human anatomy.
The axial skeleton consists of the skull, the vertebral column, ribcage and
the sternum.
The axial skeleton also includes the bones in the air called the auditory
ossicles and a small floating bone in our neck called the hyoid bone.
AXIAL SKELETON- we will first look at the different regions of the
axial skeleton.
Surface Features on the Skull
There are markings on the skull called sutures.
Coronal Suture- the suture that runs across the skull
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Midsagittal Suture- the suture that goes down the middle of the skull
Recall “sagittal” means a body or cavity is divided into two halves.
Midsagittal- means the body or cavity is divided into two equal halves.
Lambdoidal Suture- located posteriorly or on the back of the skull
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Squamosal Suture- located on the side of the skull
What is the importance of these sutures?
The sutures divide the bones of the skull so they serve as landmarks or
divisions between the fused bones in the skull.
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