In a man, abducens nerve is injured. Which one of the following functions will be affected ?
- Movement of the eye ball
- Swallowing
- Movement of the tongue
- Movement of the neck
The Correct Option is A
Solution and Explanation
Injury to the abducens nerve can lead to difficulties in moving the affected eye laterally (outward), which can result in strabismus (crossed eyes) and difficulty in coordinating eye movements. It does not directly impact swallowing, tongue movement, or neck movement.
So, the correct option is (A): Movement of the eye ball
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Concepts Used:
Neural Control and Coordination
Neural System:
Neurons are the most specialised cells in the nervous system of all animals, and they are responsible for detecting, accepting, and conveying numerous types of motives. The neurological system of low-spinal animals like Hydra is incredibly simple, consisting of a network of neurons. When the brain of an insect comprises a vast number of ganglia and neural tissues, it is optimally structured.
Coordination System:
Coordination is the process by which two or more organs work together to accomplish each other's duties. Increased muscle activity increases the supply of oxygen and the demand for energy while we exercise. When we cease exercising, our nerves, heart, lungs, and kidneys all return to normal. As a result, all of the organs' functions are properly integrated in order to conduct the exercise and supply the appropriate conditions while exercising. Similarly, in the human body, the neurological and endocrine systems work together to coordinate all of the organ activities.