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Skeletal System Cesar Carrillo Period 5 (Joints (and Examples) (Saddle…
Skeletal System Cesar Carrillo Period 5
Bone Remodeling
Bone remodeling is a lifelong process where mature bone tissue is removed from the skeleton
Types of Bones
Flat Bones(The term “flat bone” is something of a misnomer because, although a flat bone is typically thin it is also often curved.)
Irregular Bones(An irregular bone is one that does not have an easily classified shape and defies description.)
Short Bones(A short bone is one that is cube-like in shape, being approximately equal in length, width, and thickness.
Long Bones( A long bone is one that is cylindrical in shape, being longer than it is wide.)
Sesamoid Bones(A sesamoid bone is a small, round bone that, as the name suggests is shaped like a sesame seed.)
Anatomy of the Long Bone
Long bones grow primarily by elongation of the diaphysis with an epiphysis at each end of the growing bone.
Differences Between Male and Female Pelvis,
Female pelves are larger and wider than male pelves and have a rounder pelvic. Male iliac crests are higher than females, causing their false pelves to look and narrower.
Bone Fracture Repair
While some bones can heal by wearing a cast. Bone fracture repair is a surgery to fix a broken bone using metal screws, pins, rods, or plates to hold the bone in place
Microscopic Anatomy of Compact Bone Tissue
Each osteon consists of a lamellae of compact bone tissue that surround a central canal (Haversian canal)
Joints
(and Examples)
Saddle Joint (Saddle joints are so named because the ends of each bone resemble a saddle, with concave and convex portions that fit together.)
Condyloid Joint (Condyloid joints consist of an oval-shaped end of one bone fitting into a similarly oval-shaped hollow of another bone.)
Hinge Joint (In hinge joints, the slightly rounded end of one bone fits into the slightly hollow end of the other bone.)
Planar Joint (Planar joints have bones with articulating surfaces that are flat or slightly curved faces.)
Pivot Joint (pivot joints consist of the rounded end of one bone fitting into a ring formed by the other bone.)
Ball-and-Socket Joint (Ball-and-socket joints possess a rounded, ball-like end of one bone fitting into a cuplike socket of another bone.)
Movements Allowed by Synovial
Joints,
Diarthrosis: a joint that can move freely on various planes
Synarthrosis: immovable joint in which two bones are connected rigidly by fibrous tisue.
Synovial Fluid: a viscous, fluid found in the cavities of synovial joints whose main purpose is to purpose is to reduce friction between the articular cartilage of synovial joints during movement
Amphiarthrosis: slightly movable joint in which the surfaces of bones are connected by ligaments or cartilage