Study the diagram alongside and answer that follows: What are the 2 main functions of cerebrum?

The two main functions of the cerebrum are: It is involved in controlling all the voluntary actions. It allows us to think, reason, plan and memorise.

Study the diagram alongside and answer that follows: Which organ controls breathing?

The medulla oblongata is the organ that controls the activities of internal organs such as breathing, heart rate, hunger, thirst, vomiting, etc. It also controls many other involuntary actions. The medulla oblongata is the primary respiratory control center. Its main function is to send signals to the muscles that control respiration to cause breathing to occur.

Study the diagram alongside and answer that follows: What is a reflex arc?

A reflex arc defines the pathway by which a reflex travels—from the stimulus to sensory neuron to motor neuron to reflex muscle movement. Reflex arcs that contain only two neurons, a sensory and a motor neuron, are considered monosynaptic. Examples of monosynaptic reflex arcs in humans include the patellar reflex and the Achilles reflex. Most reflex arcs are polysynaptic, meaning multiple interneurons (also called relay neurons) interface between the sensory and motor neurons in the reflex pathway.