(a) State the functions of the following

(i) Nerve cells                                            (2mks)    

• Detect changes in the environment; internal and external
• Transmit/conduct impulses to brain an spinal cord/from brain to effector organs/tissues
• In brain –coordinates movements/activities of different body parts

(ii) Plasma                                                (2mks)

• Transport medium; transports glucose, amino acids
• Forms the tissue fluid

(b) Give the functions of the following organ systems

(i) Excretory  system                                            (2mks)

(ii) Endocrine system                                            (2mks)

• Homeostasis/maintains internal environment of the body constant.
• Growth and development of the body

How can low blood volume be brought back to normal

Name the process by which the human body naturally stops Bleeding?