Anatomy Of The Brain Essay

These psychological disorders originate from different area of the brain. The brain consists of three main parts: the forebrain, midbrain, and hindbrain. The forebrain is made up of the cerebrum, thalamus, and hypothalamus (part of the limbic system). The midbrain comprises the tectum and tegmentum. The hindbrain consists of the cerebellum, pons and medulla. The midbrain, pons, and medulla in conjunction are typically called the brainstem.

This division is not based on functionality, but is an aesthetic one. The frontal lobe is the largest of these geographic areas with the Rolandic fissure (Central sulcus) and the Silvian fissure (Lateral sulcus) and the Corpus Callosum creating the boundaries. The frontal lobe is comprised of three functionally specific areas on the surface area of the cerebral cortex: the precentral cortex or primary motor cortex (Brodmann’s area 4), the premotor cortex (Brodmann’s area 6) and the prefrontal

There are three interconnected layers in the brain, the central core, the limbic system, cerebral cortex. The central core has five main regions that help regulate basic life processes, such as breathing, pulse, arousal, movement, balance, and sleep. The first main region in the central core is the thalamus. The thalamus begins the process of interpreting sensory information and determines fundamental propriaties and then forwards the information to the approprIate areas of the cerebral cortex. The second main region is the pons. The pons triggers dreaming and waking from sleep. The next main region is the cerebellum, which coordinates body movements, controls, posture, and maintains equilibrium. The reticular formation is another main region that is responsible for sending signals to the cerebral cortex to attend new stimulation and remain alert even during sleep. Lastly, the medulla is the center for breathing, waking, sleeping, and beating of the heart.

The brain stem or the medulla is the closest to the spinal cord. The brainstem is responsible for most of the human bodily functions. The brain stem is critical for human survival and normal human functions. The brain stem is also responsible for information of pain and touch from the head and neck; it is also responsible for the inputs from the face and the mouth. Reticular formation is a group of neurons, nuclei, that are important for sleep and wakefulness. In reticular formation there is nuclei that are a major source of neurotransmitter serotonin. Serotonin is important for regulating mood and activities.

The Peripheral Nervous system includes somatic and the autonomic nervous systems that have voluntary control over muscles and involuntary control over organs. The brain has three parts; the Forebrain, which includes the thalamus, the hypthalamus and the cerebrum; the midbrain; and the hindbrain that includes the pons, the medulla oblongata and the cerebellum. The forebrain is the most complex and biggest of the three parts. The senses are caused by a stimulus which goes to a sensory receptor cell then the receptor potential transfers to the sensory neuron which then turns into action potential and goes to the cntral nervous system. Vision and hearing are two of theses

The brainstem, midbrain, and hindbrain is located in the southern part of the brain and houses the oldest structures in terms of how the brain grew through human evolution. It is the gateway to the rest of the brain, all information passes through the brainstem. The brainstem is comprised of the cerebellum, thalamus, pons, midbrain, and the medulla oblongata. To start with the functions on the brain, the spinal cord is a bundle of closely bound nerves that connect throughout the body and form the central nervous system. It connects to the medulla oblongata, its purpose is to control involuntary functions such as breathing and heartbeat. Then the medulla connects to the pons which controls sleep, breathing, swallowing, bladder control, hearing,

The midbrain is located between the pons and the diencephalon, the functions of the midbrain are associated with the vision reflex centres that help to coordinate head and eye movements, auditory relay from the hearing receptors of the ear to the sensory cortex, motor control, sleep and wake cycles, alertness, and temperature regulation.

The brain is divided into three main areas: the hindbrain, the midbrain and the forebrain. which has different sections they cover. The hindbrain is composed of the pons, the cerebellum and the medulla oblongata. The pons and cerebellum assist in maintaining balance and equilibrium, as well as movement, coordination and, the conduction of sensory information. The medulla oblongata controls automatic functions like breathing, heart rate and, digestion. The midbrain connects the hindbrain and forebrain together. The midbrain is involved in the functions of auditory and visual responses and motor. The forebrain is the largest part of the brain because it is mostly made up of the cerebral cortex. The forebrain consists of six parts: The Thalamus, The Hypothalamus, Pivitary, the Limbic System, Olfactory Bulb and, the Cerebral Cortex. The forebrain is responsible for receiving and processing information, as well as thinking, producing and understanding language and, controlling motor function. The thalamus is the main relay center between the medulla oblongata and the cerebrum. (Britannica, 2015) The hypothalamus is the important control center for sex drive, pleasure, pain, hunger, thirst, blood pressure, body temperature and other visceral functions. (Britannica, 2015) The pitvitary is the production of hormones as part of the endocrine

First, there are three main regions of the brain, the hindbrain, the midbrain, and the forebrain. The ascending reticular activating system, or ARAS, is present in the hindbrain and is known for taking in information from the world and

The four parts are the cerebrum, cerebral cortex , cerebellum, medulla. The cerebrum is the largest part of the brain and this part of the brain controls our bodies and it has the areas for hearing, speech, smell, sight, memory, learning, and motor and sensory areas. The cerebral cortex is the outside of the cerebrum and its function is learning, and memory. Another part of the brain is the cerebellum it is at the back of the skull and its functions are to control voluntary muscles, balance, and muscle tone. The last part of the brain is the medulla controls the heart rate, breathing, swallowing, coughing, and vomiting.

The Myelencephalon and is the most posterior region of the brain. The Myelencephalon carries information between the medulla and the rest of the body. The Myelencephalon is made of reticular formations (called so because of its net appearance). The Myelencephalon is responsible handles many functions such as sleep, movement, maintenance of muscle tone, attention ( is important to speech), as well as other respiratory, circulatory,

The approximately 100 billion neurons of the brain form the main control center of the body. The brain and spinal cord together form the central nervous system, where information is processed and responses originate. The brain, the seat of higher mental functions such as consciousness, memory, planning, and voluntary actions, also controls lower body functions such as the maintenance of respiration, heart rate, blood pressure, and digestion

It includes the “hippocampus and amygdala” (Lewis). The hippocampus and the amygdala convert into memory and emotion. The primary functions of the brainstem include “relaying information between the body, perform critical functions in controlling the heart, breathing and consciousness” (Lewis). Between the cerebrum and brainstem lie the thalamus and hypothalamus. “Motor signals to the cortex and is involved in regulating consciousness, sleep and alertness” (Lewis) is the response of the thalamus. Additionally, “the thalamus is the relay station for the information, pain sensation, attention and memory”

The brain is a very complex part of the human anatomy. It has two hemispheres which control different parts of the body and mental processes like breathing, thinking, and sleeping. The cerebral cortex, which surrounds the two hemispheres, is just one of these complex areas of the brain (Huffman, 2005, p.67). This part of the brain has different functions for motor and sensory data. Four lobes are the part of the brain are that is covered. These lobes have extremely important participating roles in the human system, and without them the body would be unable to do mundane tasks like talking or memorization (Huffman, 2005, p.68). These help to control more functions and sending various messages to parts of the body. Continually, the two hemispheres of the brain have four specific sections which control certain aspects of the brain: frontal lobe, parietal lobe, temporal lobe, and occipital lobe.

The cortex consists of four sections, called "lobes". The frontal lobe is connected to reasoning, planning, speech, movement, emotions, and problem solving. The parietal lobe is associated with balance, recognizing, and movement. The occipital lobe is associated with vision. The temporal lobe is connected to hearing, memory, and speech. The cortex is highly wrinkled, making the brain more convenient, as this increases the brain's surface area, giving it more room for neurons. The cerebrum is divided into two hemispheres- the left hemisphere, and the right hemisphere. The right hemisphere is associated with creativity, and the left one is linked with logic. A bundle of nerve fibers, known as the corpus callosum connects these "hemispheres" (Brain Structures and their Functions). The cerebellum, which is also known as the "little brain", is similar to the cerebrum, since it also has two hemispheres and a highly folded surface. This part of the brain is linked with movement and balance. The cerebellum is assumed to be older than the cerebrum "evolutionarily" (Brain Structures and Their Functions). The brain stem controls basic life functions such as blood pressure, breathing, and heartbeat. Scientists say that the brain stem is the simplest part of the brain (Brain Structures and Their Functions).