Skeletal System

1) Skeletal - made up of bones, joints and discs. Their function is to give shape to, allow movement and give protection to the body. The skeleton bones have 6 parts - Skull (cranium and face), vertebral column (cervical, thoracic, lumbar, sacral, coccygeal), thorax, shoulder girdle ( clavicle and scapula), pelvis (ilium, ischium, pubis) , upper limbs (humerus, radius, ulna, carpal, metacarpal, phalanges) and lower limbs ( femur, tibia, fibula, tarsal, metatarsals, phalanges). The joints and discs are between the bones. The bones are made up of 25% water and 75 % cells.
2) Urinary - The system that maintains and regulates the fluid balance in the body. It consists of 4 parts - kidneys, ureters, bladder and urethra. The kidneys have two main functions - secreting
This is results in maintaining a normal blood pressure, removal of waste products and urea, maintaining electrolyte balance and alkalinity of the blood. The kidneys ( pair)
3) Nervous - integrates and control the bodily functions, awareness of and responses to changes in the internal and external environment. It has 3 parts- brain, spinal column, nerves. Nerves have 2 parts- cranial and spinal. The brain has 3 parts- cerebrum, cerebellum and brain stem. Sensory nerves send information to the brain to process and motor nerves send information from the brain to the body to cause movement and other