#B3.1a
describe the structure of the nervous system
Central Nervous System, sensory and motor neurones and sensory receptors
#B3.1b
explain how the components of the nervous system can produce a coordinated response
it goes to all parts of the body, has many links, has different sensory receptors and is able to coordinate responses
#B3.1c
explain how the structure of a reflex arc is related to its function
#B3.1d
explain how the main structures of the eye are related to their functions
cornea, iris, pupil, lens, retina, optic nerve, ciliary body, suspensory ligaments
#B3.1e
describe common defects of the eye and explain how some of these problems may be overcome
colour blindness, short-sightedness and long-sightedness
#B3.1f
describe the structure and function of the brain
cerebrum, cerebellum, medulla, hypothalamus, pituitary
#B3.1g
explain some of the difficulties of investigating brain function
the difficulty in obtaining and interpreting case studies and the consideration of ethical issues
#B3.1h
explain some of the limitations in treating damage and disease in the brain and other parts of the nervous system
limited ability to repair nervous tissue, irreversible damage to the surrounding tissues, difficulties with accessing parts of the nervous system