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The Brain and Nervous System

Assignment Brief

You have to formulate an academic report here which would represent the essential features of the brain and nervous system such as central nervous system, the peripheral nervous system, neurotransmitters, glial cells, etc.

Unit 8

You are required to write an academic report which demonstrates your understanding of the key aspects of the brain and the nervous system.

The report should be written using a recommended structure and format.

Conclusions and recommendations must stem from your findings, and you should also include a references list and bibliography.

This unit is graded; you will therefore be awarded with a Pass, Merit or Distinction once you have successfully achieved all of the learning outcomes and assessment criteria. Refer to the grid for the grade descriptors and indicators for Merit and Distinction.

Remember Whilst properly referenced content is fine and encouraged, any work that is not wholly your own effort has to be acknowledged as such and correctly referenced using the Harvard format.

You are required to write an academic report which demonstrates your understanding of the key aspects of the brain and the nervous system. Discuss the major structures and functions of the brain, including the major methods of studying the brain.

The content of your report will need to include the following two sections.

SECTION ONE

  • Discuss the major structures and functions of the brain, including the major methods of studying the brain.

  • Discuss the differences between the central nervous system, the peripheral nervous system, and the two branches of the autonomic system.

SECTION TWO

  • Provide an analysis of the differences between glial cells and neurons in terms of their structure and function. Your analysis must include the process of communications between neurones.

  • Discuss different neurotransmitters and the behaviours to which they are related.

GUIDANCE

The report should be a maximum of 1,500 words in length.

You could use diagrams or illustrations to support your commentary.

Relevant theory must be referenced where appropriate and a references list provided.

Assessment Criteria

  • AC 11.1: Discuss the major methods of studying the brain.

  • AC 11.2: Discuss the differences between the central nervous system, the peripheral nervous system and the two branches of the autonomic system.

  • AC 11.3: Discuss the major structures and functions of the brain.

  • AC 21.1: Analyse differences between glial cells and neurons in terms of their structure and function.

  • AC 21.2: Analyse the process of communications between neurons.

  • AC 21.3: Discuss different neurotransmitters and the behaviours to which they are related.

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Sample Answer

The Brain and Nervous System

Introduction

The brain and nervous system are central to human life, shaping every movement, thought, memory and emotion. They act as the body’s control and communication network, connecting internal processes with the outside world. This report aims to explore the major structures and functions of the brain, the methods used to study it, and the divisions of the nervous system. It will also analyse the differences between neurons and glial cells, explain how communication between neurons occurs, and discuss the role of neurotransmitters in shaping behaviour. The discussion will draw on scientific research and theory, and will conclude with observations and recommendations for further study.

Section One

Structures and Functions of the Brain

The human brain is a highly complex organ, weighing roughly 1.4 kilograms, yet consuming around 20% of the body’s energy. It is divided into several regions with specialised functions. The cerebrum, which makes up the largest part, is divided into two hemispheres and four lobes: frontal, parietal, occipital and temporal. The frontal lobe is essential for reasoning, planning, decision-making and motor control. The parietal lobe processes sensory information such as touch and spatial awareness. The occipital lobe is responsible for vision, while the temporal lobe manages hearing, language comprehension and memory.

Beneath the cerebrum lies the cerebellum, which regulates balance, posture and coordination. The brainstem, connecting the brain to the spinal cord, controls basic survival functions such as breathing, heartbeat and digestion. The limbic system, which includes the hippocampus, hypothalamus and amygdala, plays an important role in emotions, learning and memory. Together, these structures enable humans to adapt to their environment, regulate the body, and engage in complex thought and social interaction.

Methods of Studying the Brain

Over time, scientists have developed a variety of methods to study the brain’s structures and functions. Early research relied on case studies of brain injuries, such as the famous case of Phineas Gage, whose personality changed drastically after damage to his frontal lobe. Today, modern technology provides far more detailed insights. Techniques such as electroencephalography (EEG) record electrical activity in the brain, while functional magnetic resonance imaging (fMRI) and positron emission tomography (PET) scans allow researchers to observe brain activity in real time. Computerised tomography (CT) scans are also used to identify structural abnormalities. These methods have advanced understanding of how different brain regions contribute to behaviour and cognition.

The CNS includes the brain and spinal cord, while the PNS connects the CNS to the body through sensory and motor nerves.

They support, protect, and nourish neurons, helping maintain efficient brain function.

They regulate emotional states, for example, serotonin influences happiness and calmness, while dopamine relates to pleasure and motivation.

You can summarise your findings and reflect on what they mean, but keep it academic and evidence-based.

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