This document outlines the human skeletal system. It begins with an introduction and overview of the components and classifications of bones and cartilage. It then describes the different types of joints, including synovial joints. The document separates the skeletal system into the axial skeleton, which includes the bones of the skull, vertebral column, and thorax, and the appendicular skeleton, which includes the upper and lower limbs. It concludes by discussing the functions of bone and providing examples of spinal curvatures like lordosis, kyphosis, and scoliosis.

1. THE HUMAN
SKELETAL
SYSTEM
BY JR YONG
MUFEPREC
2022

2. OUTLINE
 Introduction
 Components of the Human Skeletal System
 Classification of Bone
 Cartilage
 Joints
 The Axial Skeleton
 The Appendicular Skeleton
 Functions of Bone

47. 3. SYNOVIAL JOINT
• Synovial joints allow for smooth movements between the
adjacent bones. The joint is surrounded by an articular capsule
that defines a joint cavity filled with synovial fluid. The
articulating surfaces of the bones are covered by a thin layer of
articular cartilage
• Synovial fluid, also known as joint fluid or synovia, is a thick
liquid located between your joints. The fluid cushions the ends
of bones and reduces friction when you move your joints. It also
provides nutrients to some bone tissue

75. CURVATURES OF THE SPINE
LORDOSIS:
• Lordosis is the inward curve of the lumbar spine (just above the
buttocks). A small degree of lordosis is normal. Too much curving is
called swayback.
KYPHOSIS:
• Kyphosis is curvature of the spine that causes the top of the back
to appear more rounded than normal. Everyone has some degree
of curvature in their spine. However, a curve of more than 45
degrees is considered excessive

76. SCOLIOSIS:
• Scoliosis is where the spine twists and curves to the side

93. ARIGATOU GOZAIMASU