The brain is a complex organ that serves as the control center of the central nervous system in humans and many other animals. It is responsible for processing sensory information, initiating and coordinating motor functions, and controlling higher cognitive functions such as thinking, learning, and memory.
Structure of the Brain
The human brain is divided into several major regions, each with specific functions:
Cerebrum: Responsible for higher brain functions such as thought, action, and emotion.
Cerebellum: Coordinates voluntary movements and balance.
Brainstem: Regulates basic bodily functions such as heartbeat, breathing, and digestion.
Basal Ganglia: Involved in motor control and procedural learning.
Limbic System: Regulates emotions, memory, and arousal.
Function of the Brain
The brain performs a wide range of functions, including:
Processing sensory information from the five senses (sight, hearing, taste, smell, and touch).
Initiating and coordinating motor functions, allowing us to move and interact with the environment.
Controlling higher cognitive functions such as thinking, reasoning, problem-solving, and decision-making.
Energy - A. Energy is involved in all physical and chemical processes. It is conserved, and can be transformed from one form to another and into work. At the atomic and nuclear levels energy is not continuous but exists in discrete amounts. Energy and mass are related through Einstein's equation E=mc 2 . B. The properties of atomic nuclei are responsible for energy-related phenomena such as radioactivity, fission and fusion. C. Changes in entropy and energy that accompany chemical reactions influence reaction paths. Chemical reactions result in the release or absorption of energy. D. The theory of electromagnetism explains that electricity and magnetism are closely related. Electric charges are the source of electric fields. Moving charges generate magnetic fields. E. Waves are the propagation of a disturbance. They transport energy and momentum but do not transport matter.
Relate temperature to the average molecular kinetic energy.