Answer:
The main difference between the controllable and uncontrollable risk factors are that- controllable factors are precautions that we can take to prevent diseases or harms and uncontrollable factors are the ones that we don’t have any control over.
Explanation:
The uncontrollable risk factors cannot be controlled by humans or they do not have that power over it to prevent ourselves from any kind of harm or diseases. Controllable factors, however, can be controlled by us or it involves the steps we take to prevent the risks.
Two examples of controllable risk factors are-
i) Precautions that we take to prevent strokes, like by quitting smoking, having a healthy diet etc.
ii) maintaining the traffic rules to prevent accidents.
Examples of uncontrollable factors are -
i) ageing, and
ii) family history of a disease.
Crossed extensor reflex action prevents one from falling when your foot catches while walking.
Crossed extensor reflex:
- A withdrawal reflex is the crossed extensor reflex. In the withdrawing limb, the extensors relax while the flexors contract, but in the other limb, the opposite happens.
- Contralateral means that the crossed extensor reflex takes place on the side of the body that is opposite from the stimulus.
- Afferent nerve fiber branches travel from the stimulated side of the body to the opposite side of the spinal cord to cause this response.
- They connect with interneurons there, which then stimulate or inhibit alpha motor neurons to the muscles of the opposing leg.
Learn more about the Reflex action with the help of the given link:
brainly.com/question/17212995
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<span>Body mass index (BMI) is a measure of body fat based on height and weight that applies to adult men and women.</span>