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Introduction to Biology and Laboratory Rules, Sulfur is used in mercury…

- - - - Safety Measures for Fires
        
        Stop working and switch off all power sources and unplug appliances
        
        Exit the laboratory according to the emergency exit plan
        
        Call the fire and rescue department
        
        Do not panic and stay calm
        
        Do not turn back to collect your belongings
        
        Assemble at assembly point
      - Handling Glass and Chemicals
        
        Be cautious when handling hot glassware
        
        Report any damaged equipment or glassware to teachers
        
        Keep flammable chemicals away from fire sources
        
        Do not touch, taste and smell chemicals directly
      - Laboratory Safety Rules
        
        Do not work alone without supervision
        
        Wash your hands after an experiment
        
        Do not bring irrelevant items into the laboratory
        
        Clean your workstation using disinfectant
        
        Dispose wastes according to the set procedures
        
        Do not eat or drink
        
        Identify all safety symbols on substances and equipments
      - Handling Live Specimens
        
        Use appropriate gloves when handling biological specimens
        
        Specimens that are not harmful and have been dissected should be buried or frozen
        
        Wash hands with antiseptic detergents before and after experiments
        
        All surfaces and workstations should be cleaned with disinfectant before leaving the lab
      - Clothing Ethics
        
        Use a lab coat, gloves, safety shoes, and goggles when appropriate
      - Emergency Help
        
        Inform your teacher
        
        Call the fire and rescue department
        
        Remove the victim from the scene
        
        Give emergency treatment
        
        Make the place of accident as a restricted area
    - - Mercury Spills
        
        Inform your teacher
        
        Declare the spill area as a restricted zone
        
        Sprinkle sulphur to cover the mercury spills
        
        Call the fire and rescue department
      - General Chemical Spills
        
        Inform your teacher
        
        Declare the spill area as a restricted zone
        
        Prevent the chemical spill from spreading using sand
        
        Scoop up the chemical spill using appropriate equipments
        
        Dispose it safely
- - - - Cross Sections and Longitudinal Section
        
        Cross sections divides the structure into upper and lower portions horizontally while Longitudinal Section divides the structure into left and right portions
      - Types of Planes
        
        Sagittal Planes: Divides the body into right and left parts
        
        Frontal Planes: Divides the body into frontal and rear parts
        
        Horizontol Planes: Divides the body into upper and lower parts
      - Directions
        
        Superior: The part is above all the other parts or towards the head
        
        Lateral: Far from the midline or at the side of the body
        
        Inferior: Situated below other parts or towards the feet
        
        Ventral: Towards the lower part of the body
        
        Dorsal: Towards the upper part of the body
        
        Anterior: Towards the front of the body
        
        Posterior: Towards the back part of the body