O

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Occupational therapy: normally used as a form of rehabilitation. Exercises and activities are used to encourage patients to reach their maximum level of independent functioning

Oedema: the abnormal build up of fluid in the body which is sometimes visible as swelling

Oesophagus: part of the digestive tract connecting the throat to the stomach

Oestrogen: a group of hormones needed for female sexual development and reproduction.

Oophorectomy: surgical removal of one or both ovaries

Ophthalmologist: a doctor that specialises in the care and treatment of the eyes and human visual system

Optic nerves: the nerves sending visual information from the retina to the brain

Osteomyelitis: the inflammation of bone due to infection

Osteoporosis: loss of bony tissue making bones brittle and at increased risk of fracture

Otalgia: pain in the ear

Ovulation: release of an egg from the ovary during a woman’s menstrual cycle

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