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CBSE Class 11 » CBSE Class 11 Study Materials » Biology » Human Brain Detailed
CBSE

Human Brain Detailed

A thorough guide on the human brain details, Understanding the human mind and behaviour, left and right brain functions, structure of human brain

Table of Content
  •  

Introduction

The human brain is the central organ of the mammalian nervous system and the seat of human awareness. It is the most complex and essential organ in the body, with over 100 billion specialized nerves that control all of our body’s metabolic functions.

Structure of The Human Brain

There are three essential elements of the structure of the human brain:

  • Forebrain
  • Midbrain
  • Hindbrain
  • Many minor pieces make up these three main sections.

Forebrain

The prosencephalon is another name for the forebrain.

  1. The brain and the spinal cord, thalamus and hippocampus make up the prefrontal cortex, located in front of the brain. They provide accuracy.
  2. The vestibular system, or sense of taste, and the medial and third cortical descending aorta are all part of the frontal cortex including the optic nerves and nervous system.
  3. The cerebrum is the most significant region of the brain, accounting for two-thirds of its volume and covering the majority of other neural pathways. It is implicated in regulating essential functions such as our ability to learn and our emotions.
  4. The prefrontal cortex and other specific brain elements make up the cerebrum. It is made up of two left and right hemispheres that are connected by the parietal lobe, a C-shaped communication fiber.

The cerebrum is split into four hemispheres or sub-sections:

The Frontal Lobe is located in the frontal part of the brain

  • The frontal lobe is located directly under the brow. It is mainly accountable for speech components, judgments, thinking, problem-solving skills, organisation and motor processes such as movement. The prefrontal cortex is also linked to self-control, facial gestures, inhibiting repression, paying attention, remembering, expressing and managing
  • The Occipital Lobe is a part of the brain behind the ear
  • The temporal lobe is located in the rear of the head. It’s mostly linked to visual data systems, including body postures, movements and facial expressions
  • The Temporal Lobe is a part of the brain that controls time
  • The occipital lobes near our ears and is involved in speaking, listening, recognition and speech production

Midbrain

The mesencephalon is another name for the midbrain.

The brainstem is the biggest area of the brain, located between the prefrontal cortex and the diencephalon in the brain’s midsection. The tectum, cerebral pericarp, tunica media, cerebral conduit, globus pallidus and other nuclei and fasciculi make up this structure.

The midbrain controls hearing, perception, sleep cycle, thermoregulation, attentiveness and other functions. The nucleus accumbens includes a significant number of serotonin neurons and loss of these neurons is linked to Vascular dementia.

Hindbrain

Rhombencephalon is another name for the hindbrain and one of three major portions of the brain positioned in the lower back. Further, hindbrain is divided into 03 parts, these are cerebellum, pros, and medulla oblongata. Due to coral-shaped structure, it is termed as cerebellum, one of the parts of hindbrain.

Hindbrain is densed and covers the maximum of the brainstem. Brainstem is crucial for our central nervous system and connects brain with the spinal cord that further coordinates various important functions like heartbeat, breathing etc. Maximum cranial nerves about 12 in count rests inside hindbrain

Human Brain Functions

Forebrain

It is referred to as the thinking region of the brain for human brain functions. The forebrain is primarily engaged in perceptual information processing and governs the exercise of discretion.

The brain (cerebrum)

It is an essential portion of the brain, and it is connected with the thoughts and actions of human brain functions.

Midbrain

It connects the forebrain and the hindbrain transmitting impulses from the primitive brain to the mesencephalon. It is also required to manage vision, perception, body thermogenesis and attentiveness.

The Hindbrain

It is the whole function control room, which regulates the heart’s working, heartbeat, breathing patterns, blood pressure, sleeping, and so on among human brain functions.

The cerebral cortex

It maintains equilibrium, synchronizes bodily balance, eye motions, body posture while marching, running, standing, swimming  and making slight modifications to motor tasks.

Left And Right Brain Functions

  • The brain is a complicated and labor-intensive organ. It contains up to 100 billion neurons, or grey matter, yet weighs only 3 pounds
  • It is an energy-intensive function, accounting for around 2% of a material object yet using a whopping 20% of the energy for the body
  • A significant number of nerve fibers link the conservative and progressive sides of the equation. The two halves of a functional brain cooperate

However, the left and right brain functions are not required to converse. Even if a person has an accident that divides the cerebral hemispheres, they can still function normally.

Belief in the Left versus Right Brain

According to left-brain vs. correct brain theory, everyone has one aggressive side of their brain that dictates their personality, thoughts, and conduct. Because humans might be either left or right-handed. People whose left-brain is more active are generally stronger in numerical thinking, logical detailing, and aptitude skilling. People whose right brain is more active are considered highly resourceful, free-thinkers, able to perceive the broader picture, and more inclined to abstract thinking than words.

Evolutionary psychology is the branch of psychology that studies how the brain influences behavior; nevertheless, you may also encounter this field referred to as psychology or behavioral neuroscience.

Exploring the Biopsychology Field

Neurons are the fundamental building elements of life. These highly specialized cells are in charge of receiving and sending data from one portion of the body to the next.

Understanding The Human Mind and Behaviour

Anatomy of Neurons

It is critical to comprehend the distinct elements to grasp better how it operates to convey information throughout the body.

Neurotransmitters: An Overview of Their Structure

You’ve shown how a cell is built and how nerve impulses move through it, but how does this communication go from one cell to another?

Information Systems: Comprehend the Role of Neurotransmitters

Neurons are only a tiny portion of the centralized access system in the human body. The somatic nervous system and the enteric nervous system are the two primary components of the nervous system. Furthermore, the endocrine system is imperative in communication.

Nervous and Endocrine Systems Function

The Mind

Technology developments have enabled scientists to explore human behavior in previously impossible ways.

Conclusion

The human brain is the most functional part of the human body helps to regulates various activities throughout the day. Imagine, if humans are born without brain what will happen. Only a few species are born without a brain. The brain is essential to our survival because it is willing to take responsibility for sentiments, interpretation, and control of body movements. It also serves as a bed for the neurological, intellectual, and sensory systems.different parts of brain take care of different functionalities and all human brain functions and different components are discussed in detail throughout the article. Hope this information was useful and it helped you to understand Human brain details in-depth.

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