BIOL 2010 Lecture Notes - Lecture 3: Mandibular Fossa, Parietal Bone, Costal Cartilage

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Published on 22 Feb 2017
School
TNTECH
Department
Biology
Course
BIOL 2010
Professor
Lab 3: Skeletal System: Axial Skeleton
Bones
o 206 bones
o Bones are LIVING organs made of different tissues
Osseous for strength, hard tissues, support, protection, lever for
movements
Nervous tissue
Fibrous connective tissue
o Vascular
o Sites where blood cell production occurs and hormone production
Axial Skeleton
o Skull, vertebral column, and rib cage
o Appendicular skeleton
Role of bone
o Support
o Protection
o Acts as a lever for movement
o Site where blood cells and hormones are produced
o Osseous tissue is hard and gives bones their strength for the above functions
Markings of Bone (what their functions will be)
o Articulation of joints
Condyle
Round knob that articulates with another bone (occipital condyles
of the skull)
Facet
A smooth, flat, slightly concave or convex articular surface
Head
The prominent expanded
o Extensions and projections
Crest
A narrow ridge
Epicondyle
An expanded region superior to a condyle
Process
Any bone prominence (mastoid process of the skull)
Spine
A sharp, slender, or narrow process
Trochanter
Two massive processes unique to the femur
o Depressions
Fossa
A shallow, broad, or elongated basin (mandibular fossa)
Sum of Markings
o Projections of bones serve as a portion of an articulation between two bones,
attachment sites for ligaments from other bones, tendons, or muscles
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