LAB EXERCISE 6.pdf - NUR11O1 Integrated Human Anatomy and...

NUR11O1 Integrated Human Anatomy and Physiology
Department of Biology
Institute of Arts and Sciences
Far Eastern University
©
Biofacultymember2020
LABORATORY EXERCISE NO. 6
SKELETAL SYSTEM
I. INTRODUCTION
The skeletal system is a system which provides an internal framework for the human
body, protects organs and anchors skeletal muscles so that muscle contraction can cause
movement. The internal framework is mainly provided by the skeleton which is divided
into two parts: axial skeleton which consists of bones that form the longitudinal axis of
the body and the appendicular skeleton which forms the limbs and girdles.
Bone is a living vascular structure composed of organic tissue and mineral. It serves as a
support structure, site of attachment for skeletal muscles and site of blood cell formation.
Bone is characterized by its hardness and strength. But despite its remarkable strength,
it is susceptible to fracture or breaks. A type of fracture in which the bone breaks clearly
but does not penetrate the skin is known as a closed fracture while if there is a
communication with the skin it is known as an open fracture.