Neural Control and Coordination

Choose the incorrect statement for autonomic nervous system.

Assertion : Hypnotic drugs induce sleep. Reason : Central nervous system is sensitive to hypnotic drugs.

Assertion : Cephalisation is advantageous to an animal. Reason : Cephalisation improves the appearance of an animal.

An example of stretch reflex triggered by passive muscle movement is the

Assertion : All motor neurons are efferent neurons. Reason : Motor neurons conduct nerve impulses from the spinal cord to the brain.

Assertion : The optic nerves leave the eye at the point called blind spot. Reason: Only cone are densely packed at the blind spot, hence is the name.

Assertion : Corpus callosum connects the two cerebral hemispheres. Reason : Association areas are responsible for complex functions like intersensory association of memory and communication.

Assertion : Mylein sheath insulates the nerve fibre and prevents its depolarisation.Reason : Nerve impulses are conducted more rapidly in non - myelinated nerve fibres than in myelinated ones.

The release of chemical messenger from synaptic vesicles is under the influence of these ion(s)?

Assertion : Organ of Corti rests on tectorial membrane. Reason : It helps to maintain equilibrium of body.

If medulla oblongata is destroyed then which of the following functions will be effected?

Assertion : Auditory ossicles are small bones present in the cavity of inner ear. Reason : Auditory ossicles maintain the balance of air pressure between two sides of ear drum.