The anatomical structure and processes of the brain

The type of aphasia depends on the brain area damaged. Beneath the cortex are long nerve fibers axons that connect brain areas to each other — called white matter. The CSF also carries nutrients in the blood to and removes waste products from the brain.

The medullary rhythmicity center of the medulla monitors oxygen and carbon dioxide levels in the blood and adjusts the rate of breathing to keep these levels in balance. Any abnormal tissue growth inside the brain.

Each hemisphere can be further divided into 4 lobes: Glial cells also known as glia or neuroglia come in several types, and perform a number of critical functions, including structural support, metabolic support, insulation, and guidance of development.

They coordinate specific functions, including visual memory such as facial recognitionverbal memory such as understanding languageand interpreting the emotions and reactions of others. Deep structures Pathways called white matter tracts connect areas of the cortex to each other.

The medulla oblongata is a roughly cylindrical mass of nervous tissue that connects to the spinal cord on its inferior border and to the pons on its superior border.

Except for a few primitive organisms such as sponges which have no nervous system [13] and cnidarians which have a nervous system consisting of a diffuse nerve net [13]all living multicellular animals are bilateriansmeaning animals with a bilaterally symmetric body shape that is, left and right sides that are approximate mirror images of each other.

An operation on the brain can cure some brain tumors. The study of microscopic anatomy or histology can be aided by practical experience examining histological preparations or slides under a microscope. Continued Brain Treatments Thrombolytics: If this area is damaged, one may have difficulty moving the tongue or facial muscles to produce the sounds of speech.

The pituitary gland is connected to the hypothalamus of the brain by the pituitary stalk. Cerebrospinal Fluid Cerebrospinal fluid CSF — a clear fluid that surrounds the brain and spinal cord — provides many important functions to the central nervous system.

It receives messages from the hypothalamus and releases hormones that control the thyroid and adrenal gland, as well as growth and physical and sexual development. Sensory neurons entering the brain from the peripheral nervous system deliver information about the condition of the body and its surroundings.

Traumatic head injuries cause most concussions. As the innermost of the meningeal layers, the pia mater rests directly on the surface of the brain and spinal cord.

The length of an axon can be extraordinary: Next The brain is one of the largest and most complex organs in the human body. The limbic system helps the body to react to emergency and highly emotional situations with fast, almost involuntary actions.

Neuroanatomists have a word to describe the brainstem sub-region of our hindbrain, calling it the myelencephalon, while they use the word metencephalon in reference to our cerebellum and pons collectively. Antibiotics and surgical drainage of the area are often necessary. The brain is protected inside the skull.

The brain and spinal cord

Mammal anatomy Mammals are a diverse class of animals, mostly terrestrial but some are aquatic and others have evolved flapping or gliding flight. For example, it enables you to dial a phone number someone just told you. The thorax has three pairs of segmented legsone pair each for the three segments that compose the thorax and one or two pairs of wings.

The big hole in the middle foramen magnum is where the spinal cord exits. Obvious mental impairment, or more subtle personality and mood changes can occur. During REM sleep, the body becomes paralyzed while the eyes move back and forth quickly.

A region of the cerebral cortex known as the motor area sends signals to the skeletal muscles to produce all voluntary movements. An aggressive, malignant brain tumor cancer. Sleep While sleep may seem to be a time of rest for the brain, this organ is actually extremely active during sleep.

Visually, the interior of the brain consists of areas of so-called grey matterwith a dark color, separated by areas of white matterwith a lighter color.

Vomiting, sneezing, coughing, and swallowing reflexes are coordinated in this region of the brain as well. The outer layer of the cerebellum, known as the cerebellar cortex, is made of tightly folded gray matter that provides the processing power of the cerebellum.

There are scales on the legs, feet and claws on the tips of the toes. The human brain is the command center for the human nervous system. A project to map the structure and function of the human brain has been proposed.

The temporal lobe processes sound and. structure and function of the human brain The brain has three main parts, the cerebrum, the cerebellum, and the brain stem. The brain is divided into regions that control specific functions.

Picture of the Brain

Stroke (brain infarction): Blood flow and oxygen are suddenly interrupted to an area of brain tissue, which then dies. A blood clot, or bleeding in the brain, are the cause of most strokes.

The brain acts as the body’s control center by maintaining the homeostasis of many diverse functions such as breathing, heart rate, body temperature, and hunger.

The brainstem and the hypothalamus are the brain structures most concerned with homeostasis. Given the brain structure presented in Triune Brain theory, which of the three major regions is probably in charge of the burn response?

If you figured the brain stem, you’re Chapter 1: Know Yourself — Socrates Lesson 4: Brain Structure and Function)., The brain is a spongy organ made up of nerve and supportive tissues. It is located in the head and is protected by the boney covering called the skull. The base or lower part of the brain is connected to the spinal cord.

Together, the brain and spinal cord are known as the central nervous system (CN.

Brain Overview The anatomical structure and processes of the brain
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The brain and spinal cord - Canadian Cancer Society