Suitably arrange the information under the given headings. Evokes sensations. Coordinates the repeated movements during walking and running. Impulses from the different parts of the body are transmitted to and from the brain Coordinates muscular activities and maintains equilibrium of the body. Brain Spinal cord

The brain and spinal cord play an essential role in the coordination of the impulses in the body of a human. Neurons help to relay the stimulus between different parts of the body. The brain evokes sensations and coordinates muscular activities and maintains the equilibrium of the body. The spinal cord coordinates the repeated movements during walking and running and relays impulses from the different parts of the body are transmitted to and from the brain. Brain Spinal cord Evokes sensations. Coordinates the repeated movements during walking and running. Coordinates muscular activities and maintains equilibrium of the body. Impulses from the different parts of the body are transmitted to and from the brain

Analyse the illustration and answer the following questions : Are all accidental responses controlled by (iii) ? Explain with an example.

A reflex arc is a pathway that controls a reflex in the body of a human. Sensory neurons pass through the spinal cord as most of them do not pass directly into the brain. This helps for faster reflex action. It allows the spinal motor neurons to get activated without the delay of signals through the brain. In the given diagram (iii) represents the spinal cord. Not all accidental responses are controlled by the spinal cord. For example, when light falls on our eyes or any object moves towards our eye we normally close our eyes. This response is under the control of the cerebrum.

MEDIUM

Earn 100

Draw a labelled diagram of the brain.

Important Questions on Human Body- A Wonder

MEDIUM

Science>Biology>Human Body- A Wonder>Nervous System

Draw a neat diagram of the human brain and label any four different parts of it.

HARD

Science>Biology>Human Body- A Wonder>Nervous System

Describe briefly the structure of the human Brain.

MEDIUM

Science>Biology>Human Body- A Wonder>Nervous System

What is the principal coordinating centre of our body?

EASY

Science>Biology>Human Body- A Wonder>Nervous System

Suitably arrange the information under the given headings.

Evokes sensations.
Coordinates the repeated movements during walking and running.
Impulses from the different parts of the body are transmitted to and from the brain
Coordinates muscular activities and maintains equilibrium of the body.