SKELETAL SYSTEM

SKELETAL SYSTEM HAS MANY FUNCTIONS IT INCLUDES FRAMEWORK, IT PRODUCES RED BLOOD CELLS, PROTECTS VITAL ORGANS SUCH AS BRAIN, PROVIDES MOVEMENT. WE ARE COMPOSED OF 206 BONES. THEY ARE CLASSIFIED INTO LONG, SHORT, FLAT AND IRREGULAR BONES. IT IS CONNECTED BY A LIGAMENT. WHEN BONES MEET OTHER BONE THEY FORM JOINTS OR ARTICULATION.BONES HAVE TWO TYPES NAMELY SPONGY AND COMPACT.

TISSUES

TISSUES ARE GROUP OF CELLS THAT HAS FUNCTION. WHEN TISSUES GROUP TOGETHER THEY FORM ORGANS. THERE ARE 4 TYPES OF TISSUE THE EPITHELIAL, CONNECTIVE, MUSCLE AND THE NERVOUS TISSUES. CONNECTIVE TISSUES ARE FIBROUS TISSUES, CONNECTIVE TISSUES ARE TENDONS AND LIGAMENTS, MUSCLE TISSUE PROVIDE MEANS FOR MOVEMENT AND NERVOUS TISSUES ARE INSTANT MESSENGERS OF THE BRAIN. THE STUDY TISSUE IS CALLED HISTOLOGY.