The human brain its parts and how they are connected to memory

The midbrain, also known as the mesencephalon is made up of the tegmentum and tectum. Each hemisphere can be further divided into 4 lobes: The tectum is the posterior region of the midbrain, containing relays for reflexes that involve auditory and visual information.

The big hole in the middle foramen magnum is where the spinal cord exits. The dura mater forms the leathery, outermost layer of the meninges.

The cerebral cortex itself is only 2 - 4 mm thick, and contains six distinct but interconnected layers. These nuclei work with the cerebellum to coordinate fine motions, such as fingertip movements. All of these brains contain the same set of basic anatomical components, but many are rudimentary in the hagfish, whereas in mammals the foremost part the telencephalon is greatly elaborated and expanded.

Large volumes of blood must be constantly delivered to the brain in order to maintain proper brain function. This middle area of the brain can also be used to relay information from the sense of touch, including pain or pressure which is affecting different portions of the body.

These cells relate information back to specific centers of the brain where it can be processed and an appropriate reaction can be generated. Ventricles and cerebrospinal fluid The brain has hollow fluid-filled cavities called ventricles Fig.

The right hemisphere generally controls the left side of the body, and vice versa, although popular notions that logic, creativity, etc, are restricted to the left or right hemispheres are largely simplistic and unfounded. Neuroanatomists call the cerebral area the telencephalon and use the term diencephalon or interbrain to refer to the area where our thalamus, hypothalamus and pineal gland reside.

In mammals it is usually referred to as the superior colliculusand its best-studied function is to direct eye movements.

If the brain is not functioning properly, the ability to move, generate accurate sensory information or speak and understand language can be damaged as well.

Nerve tracts passing through the cerebral peduncles connect regions of the cerebrum and thalamus to the spinal cord and lower regions of the brainstem.

Deep to the cerebral cortex is a layer of cerebral white matter. Lying deep in the center of the limbic emotional brain, this powerful structure, the size and shape of an almond, is constantly alert to the needs of basic survival including sex, emotional reactions such as anger and fear.

Hindbrain Rhombencephalon Brainstem Connecting the brain to the spinal cord, the brainstem is the most inferior portion of our brain. Cortex The surface of the cerebrum is called the cortex.

Vertebrate brains are surrounded by a system of connective tissue membranes called meninges that separate the skull from the brain. Ventricles and cerebrospinal fluid The brain has hollow fluid-filled cavities called ventricles Fig.

The pineal gland is a small gland located posterior to the thalamus in a sub-region called the epithalamus. Located at the top of the brain stem, the thalamus acts as a two-way relay station, sorting, processing, and directing signals from the spinal cord and mid-brain structures up to the cerebrum, and, conversely, from the cerebrum down the spinal cord to the nervous system.

This function of the pineal gland helps to explain why darkness is sleep-inducing and light tends to disturb sleep. These cells relate information back to specific centers of the brain where it can be processed and an appropriate reaction can be generated.

After circulating around the brain and spinal cord, CSF enters small structures known as arachnoid villi where it is reabsorbed into the bloodstream. Included in this system are the cingulate gyri, hypothalamus, amygdala emotional reactions and hippocampus memory.

During REM sleep, the body becomes paralyzed while the eyes move back and forth quickly. CSF is recycled or absorbed by special structures in the superior sagittal sinus called arachnoid villi.

The cardiovascular center adjusts the heart rate and blood vessel dilation to maintain healthy levels of dissolved gases in the blood and to maintain a healthy blood pressure.

Parts of the Brain and Their Functions Cerebrum The cerebrum is the largest portion of the brain, and contains tools which are responsible for most of the brain's function.

Deep inside the medial temporal lobe is the region of the brain known as the limbic system, which includes the hippocampus, the amygdala, the cingulate gyrus, the thalamus, the hypothalamus, the epithalamus, the mammillary body and other organs, many of which are of particular relevance to the processing of memory.

Deep inside the medial temporal lobe is the region of the brain known as the limbic system, which includes the hippocampus, the amygdala, the cingulate gyrus, the thalamus, the hypothalamus, the epithalamus, the mammillary body and other organs, many of which are of particular relevance to the processing of memory.

The largest region of the human brain, our cerebrum controls higher brain functions such as language, logic, reasoning, and creativity. The cerebrum surrounds the diencephalon and is located superior to the cerebellum and brainstem.

Parts of the Brain and Their Functions Cerebrum The cerebrum is the largest portion of the brain, and contains tools which are responsible for most of the brain's function.

The human brain is the central organ of the human nervous system, and with the spinal cord makes up the central nervous system. The brain consists of the cerebrum, the brainstem and the cerebellum.

The human brain its parts and how they are connected to memory