Biology 2023 JAMB Past Questions - Question 8:  Movements and positions of the head in man are' detected by the

Correct Answer

D

Explanation

The solution to the question ". Movements and positions of the head in man are detected by the" is likely related to the sensory organs within the human head that are responsible for detecting movements and positions. These organs include:

1. Inner Ear (Vestibular System): The inner ear contains structures such as the semicircular canals and otolith organs (utricle and saccule), which detect rotational and linear movements of the head, respectively.
2. Eyes (Visual System): Visual input plays a crucial role in detecting head movements and positions, especially in maintaining balance and spatial orientation.
3. Proprioceptors: These are sensory receptors located in muscles, tendons, and joints throughout the body, including the neck and head. They provide feedback to the brain about the position and movement of body parts, including the head.
4. Skin Receptors: Receptors in the skin of the head and neck also contribute to the detection of movements, especially tactile sensations related to contact with the environment.
5. Cerebellum and Brainstem: These parts of the brain are involved in processing sensory input related to head movements and positions and coordinating motor responses to maintain balance and posture.

Overall, the detection of movements and positions of the head involves a complex interplay of sensory information from multiple sources, including the vestibular system, visual system, proprioceptors, skin receptors, and central nervous system processing.