3. Describe at least three types of medical interventions that can be used to treat and repair broken bones. Explain the theory behind each intervention.

1. Casting

2. Open reduction and internal fixation

3. Open reduction and external fixation

Explanation:

Casting is the process of making use of plaster-of- Paris to cure a fracture.

Open reduction, and internal fixation can be described as a situation whereby surgery is used to repair the fracture-frequently, and involves the use of metal rods, screws or plates to repair the bone. These things remain in place, under the skin, after the surgery. This procedure is adopted when the complicated fractures are not able to be realigned (reduced) by casting.

Open reduction, and external fixation is known to involve surgery to repair the fracture, and placement of a external fixation device on the limb with the fracture. This device is an external frame which supports the bone and hold it in the correct position while it is healing.

Explanation: h is Planck's Constant, f is the frequency, c is the speed of light, and λ is the wavelength of the radiation. Calculate the energy of a photon of radiation whose frequency is 5.00×1014Hz . The energy is 3.31×10−19J

Explanation: