Brain anatomy diagram includes forebrain, midbrain, and hindbrain structures.

Hyperlinked Menu:
An Arrow Indicates Your Location


MyBrainNotes.com

HOME

EXPLORE SITE OUTLINE

BROWSE BOOKS

CONTACT ME


Part 1.
Brain Anatomy

Brain Structure and Neurons

DNA, the Brain, and Human Behavior

Human Brain Development

  Brain Anatomy Diagram

Broca's Limbic Lobe, Papez's Circuit, and MacLean's Limbic System

Brain Evolution—The Triune Brain Theory

Brain Anatomy—Early Structures and Systems

Subcortical Brain Structures, Stress, Emotions, and Mental Illness

The Brain's Two Hemispheres

The Brain's Cerebral Cortex (Neocortex)

Part 2:
Neurotransmitters
and Emotional Systems

Brain Neurotransmitters—an Introduction

Brain Neurotransmitters and Illness

Emotions are Hard-Wired in the Brain: Introduction to Ancestral Brain Systems

The SEEKING-VIGILANCE Construct

The Brain's SEEKING System

Attention, Learning, and Memory: The VIGILANCE System

Rage: an Innate Brain System

Fear: an Innate Brain system

PANIC/LOSS: an Innate Brain System

PLAY: an Innate Brain System

The MATING System, the Brain, and Gender Determination

CARE: an Innate Brain System Important to Motherhood

Part 3:
Innate Behavior, Grooming, OCD, and Tourette Syndrome

Depression, Obsessions, and Compulsions: Concepts in Ethology and Attachment Theory

Body Dysmorphic Disorder, Trichotillomania, and Skin Picking

OCD and Tourette Syndrome: Causes and Symptoms

OCD, Dopamine, and the Nucleus Accumbens

OCD Treatments Including Antipsychotic Medications

Dopamine neurons in the brain.


Brain Anatomy Diagram

The National Library of Medicine uses the next illustration (image links to source) in the MedlinePlus Dictionary. The image reminds me of a subway route diagram in that it illustrates only two dimensions. Although extremely helpful in finding your way around, it lacks depth and detail. For example, the illustration does not convey that the brain's cortex includes both a left and right hemisphere and that both the left and right cortical areas overlay recessed nuclei which have evolved as mirror-image structures in each side of the brain. Regarding recessed nuclei, as an example, MedlinePlus defines the centrally-located thalamus (below, labeled 5) as "an ovoid mass of nuclei in each lateral wall of the third ventricle… (emphasis added)." A ventricle is a kind of connecting cavity within the brain that is "continuous with the central canal of the spinal cord."


Major brain structures; basic human brain anatomy. MedlinePlus diagram.


Brain vocabulary:

If you have not already done so, reading the subsection Neural tube brain organization, part of Human Brain Development, will help you understand the vocabulary used to refer to the brain.

Forebrain or prosencephalon structures include the 1) cerebral hemisphere or neocortex, 2) corpus callosum, 3) ventricle, 4) fornix, 5) thalamus, and 6) pituitary.

The midbrain or mesencephalon is labeled 11.

The fully developed hindbrain or rhombencephalon is represented by structures 7) the pons, 8) the medulla oblongata, and 10) the cerebellum.

The term brain stem refers to structures 7) the pons, 8) the medulla oblongata, and 11) the midbrain.

To continue exploring MyBrainNotes.com in an orderly fashion, link to Broca's Limbic Lobe, Papez's Circuit, and MacLean's Limbic System. Or, you may Explore the Site Outline.

Thanks for visiting my site. If you would like be informed about new features and improvements as they are added to MyBrainNotes.com, please send me an e-mail.