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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37 to 42 weeks is the average length of a human pregnancy.
It means u give it force or it ran out of force
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<h2>
They Cause Diseases Directly & Indirectly.</h2>
<h3>
Environmental Factors In 3rd World Countires Has Socio-Economic Issues Such As:</h3>
▪︎Poverty
- Which Can Cause <u>HIV</u><u>/</u><u>AIDS</u><u>,</u><u> </u><u>Malnutrition</u><u> </u><u>or</u><u> </u><u>Malaria</u><u>.</u>
▪︎Excessive Exposure To UV-Rays
- Which Can Cause <u>Skin Cancer</u><u>,</u><u> </u><u>Solar</u><u> </u><u>E</u><u>lastosis</u><u> </u><u>or</u><u> </u><u>A</u><u>ctinic </u><u>K</u><u>eratosis</u><u>.</u>
▪︎Overpopulation
- Which Can Cause <u>Meningitis, Respiratory Infections or TB.</u>
Answer:
enteric precautions are necessary for hepatitis B ( HBV) but not for hepatitis a ( HAV)
Explanation: