What are the five lobes of the cerebral hemispheres responsible for?

The location, structure, and main functions of each leaf are as follows:

1. Frontal lobe. Also called prefrontal lobe. Located in front of the **ditch. Between the sulcus and the anterior sulcus, it is the anterior gyrus.

In front of it there is the superior frontal sulcus and the inferior hungry sulcus, and the superior frontal gyrus, middle frontal gyrus and inferior frontal gyrus are intersected by the two grooves. The posterior part of the inferior frontal gyrus has an ascending branch of the lateral fissure, and the horizontal branches are divided into orbital, triangular and operculum. The anterior end of the frontal lobe is the frontal pole.

The underside of the frontal lobe has the straight gyrus and orbital gyrus bounded by the orbital sulcus, and its innermost deep sulcus is the olfactory tract sulcus, which houses the olfactory tract and olfactory bulb. The olfactory tract is divided posteriorly into medial and lateral olfactory lines, and the triangular area that bifurcated by it is called the olfactory triangle, also known as the anterior perforator, from which many perforators of the anterior basilar artery ring enter the brain. On the medial surface of the frontal lobe, the part of the anterior and posterior gyrus that continues is called the paralobule.

Responsible for thinking, planning, and related to the needs and emotions of the individual.

2. Parietal lobe: located behind the ** sulcus, the parieto-occipital fissure is before the anterior occipital notch. Between the sulcus and the posterior sulcus, it is the posterior gyrus.

The transverse interparietal sulcus divides the rest of the parietal lobe into supraparietal and inferior parietal leaflets. The inferior parietal leaflets include the superior marginal gyrus and angular gyrus. In response to the sensations of pain, touch, taste, temperature, pressure, this area is also associated with mathematics and logic.

3. Temporal lobe. It is located below the lateral fissure, and is divided into superior temporal gyrus, middle temporal gyrus, and inferior temporal gyrus by the supratemporal, middle, and inferior temporal sulcus. Hidden within the lateral fissure is the transverse temporal gyrus. On the lateral and inferior surfaces of the temporal lobe, the fusiform gyrus is between the inferior temporal sulcus and the lateral collateral fissure, and the hippocampal gyrus is between the lateral parafissure and the hippocampal fissure.

The hook-like part that surrounds the anterior end of the hippocampal fissure is called the hippocampal hook gyrus. Responsible for the processing of auditory information, it is also related to memory and emotion.

4. Occipital lobe. Located after occipital parietal fissure and anterior occipital notch line. On the medial surface, the cuneiform lobe is between the talar and parieto-occipital fissures, and the lingual gyrus is between the lateral parafissures. Responsible for processing visual information.

5. Insula lobe: located in the deep side of the lateral fissure, the oblique ** hook on its surface is divided into long and short back.

The cerebrum includes the cerebrum, diencephalon, cerebellum, and brainstem.

The human brain is divided into two hemispheres, the left and right hemispheres, accounting for more than half of the entire central nervous system, and the weight accounts for 60%-70% of the total brain weight. The cerebral cortex has a total area of 2,200-2,600 square centimeters and concentrates about 14 billion nerve cells.

Usually, the left hemisphere of the brain is dominated by speech function, and also plays a major role in logical reasoning, mathematical calculations, etc. The right hemisphere is dominated by spatial image perception function, which also plays a special role in ** and artistic ability. The relatively large sulcus fissures in the cerebral cortex divide the cortex into frontal, parietal, temporal, and occipital lobes.

Functionally, each lobe is a specific center: the frontal lobe - the motor center, the parietal lobe - the general sensory center, the temporal lobe - the auditory center, and the occipital lobe - the visual center. These specific centers occupy only 1 5 of the entire cerebral cortex, and the rest of the area belongs to the joint functional area.

The diencephalon is located in the lower part of the cerebral hemispheres and includes the thalamus and hypothalamus. The thalamus is the sensory center of the subcortex, and all senses except smell are converted in the thalamus and then to the brain. The hypothalamus regulates the activity of internal organs and the metabolism of substances in the body, and is the higher center of the autonomic nerve.

There is a close relationship between the reactions.

The brainstem includes the midbrain, pontine ence, and extended brain. The midbrain is located between the diencephalon, pontine encephalophare, and cerebellum. The dorsal side is called the tetraassic body and is the reflex center of visual and auditory movements.

The ventral side is called the cerebral foot and has a lot to do with the movement of the body and the maintenance of posture. Pontine is a structure unique to the ventral surface of the cerebellum. The cerebellar hemispheres are connected to each brain by a large number of longitudinal and transverse bundles of nerve fibers.

The brain is located at the lowest end of the brain stem, which is related to the basic life activities of the person, such as breathing, heartbeat, swallowing, gastrointestinal movement, excretion, etc., and is called the life center. In the brainstem**, there are many scattered nerve cells criss-crossed in a reticular pattern, known as a reticular structure, which is important for maintaining the excitation of the cerebral cortex, keeping people awake and regulating endocrine function.

The cerebellum is located in the back and bottom of the brain, located on the back of the brainstem, and is also divided into two hemispheres, left and right, and has many connections with the cerebral cortex, subcortical ganglia, and spinal cord.

The sulcus fissure divides the cerebral hemisphere into five lobes: the frontal lobe anterior to the sulcus and above the lateral fissure; temporal lobe below the lateral fissure; occipital lobe posterior to parieto-occipital fissure; the parietal lobe above the lateral fissure, between the ** sulcus and the parieto-occipital fissure; and the insula hidden deep in the lateral fissure. In addition, it is bounded by the **groove, and between the **groove and the **anterior groove is the **anterior gyrus; Between the groove and the posterior groove is the posterior gyrus.

The cerebral hemispheres have gray matter on the surface and medulla in the deep layer. The medulla contains nerve fibers and nuclei, of which 4 pairs of nuclei are located at the base of the brain called the basal ganglia (nucleus), including the caudate nucleus, lenticular nucleus, amygdala and screen nucleus.

The cerebral hemispheres are divided into three grooves and five lobes.

Three grooves: lateral groove, ** groove, parieto-occipital groove.

Five lobes: frontal, parietal, temporal, occipital, insula.

The cerebral hemispheres are divided into two hemispheres, the left and right hemispheres, which are each divided into five lobes, namely the frontal lobe, the parietal lobe, the occipital lobe, the temporal lobe, and the insular lobe.

The brain is divided into two hemispheres, left and right.

The lobules of the cerebral hemispheres include the parietal, limbic, temporal, and occipital lobes.

The cerebral hemispheres, the telencephalon are structures on both sides. The two hemispheres are completely separated anteriorly and posteriorly, and are connected in the middle by a bundle of the largest commissural fibers, the corpus callosum. The surface is gray matter, that is, the cerebral cortex, and its raised part is the gyrus, and the concave part is called the sulcus.

The dorsolateral surface is divided into frontal, parietal, occipital, temporal and other lobes by the lateral fissure and the **sulcus.

The anterior end is the frontal pole and the last end is the occipital pole. Subcortical is the thick white matter, the cerebral medulla. According to the pathways and their connections, the medullary fiber bundles can be divided into three categories: projection fibers, intrahemispheric symphysical fibers, and interhemispheric commissural fibers.

Projection fibers are the connecting fibers between the cortex and the subcortical center, including the ascending fiber bundles that conduct impulses to the cortex and the descending fiber tracts that carry impulses from the cortex to the subcortical center. The ascending fibers are mainly thalamic radiation, xin radiation and optic radiation, and the descending fibers are mainly pyramidal system and extrapyramidal system.

The brain is an organ of the human body, and it is more complex and mysterious than the world's most advanced computers. The human brain weighs about 3 pounds, and it is made up of two parts: the left hemisphere and the right hemisphere.

These two parts are connected by the corpus callosum. The corpus callosum is actually a bundle of nervous tissue that coordinates the work of the left and right hemispheres.

The division of functions between the left and right laughing brains:

The motor cortex is distributed at the top of the left and right hemispheres of the brain and is structurally symmetrical on both sides. Underneath the motor cortex are sensory areas, which also have symmetrical structures on both sides, which are responsible for receiving and processing various information from the movement of the bones, joints, muscles, and limbs. This area is sometimes referred to as the tactile zone.

The division of labor between motor and sensory areas of the brain is very specialized: each specific area is responsible for controlling a specific part of the body, the left half of the brain controls the right hand and right foot, and the right half of the brain controls the left side of the body.

The lobules of each cerebral hemisphere are pentathone.

The brain has two hemispheres, each hemisphere is divided into five lobes, mainly the frontal lobe, temporal lobe, etc., frontal lobe: the frontal lobe is located in front of the cerebral cortex **sulcus, above the lateral fissure, can be divided into dorsolateral lateral, medial and underside, the frontal lobe is mainly related to spirit, language and voluntary movements.

Temporal lobe: The temporal lobe is located below the lateral fissure, and is divided into three parts: superior temporal gyrus, middle temporal gyrus, and inferior temporal gyrus, which are mainly responsible for the processing of auditory information and memory in the human body. In addition, there are occipital lobes, etc., so it is recommended to go to the hospital for diagnosis and treatment in time.

The brain is the highest part of the nervous system, consisting of two cerebral hemispheres, the left and the right, and there are horizontal nerve fibers connected between the two hemispheres. Each hemisphere includes: cerebral cortex (cerebral cortex):

It is a layer of gray matter on the surface (the concentrated part of the cell body of nerve cells).

The surface of the human brain has many concave sulcus (fissures) with a raised gyrus between the sulcus (fissures), thus greatly increasing the area of the cerebral cortex. The cerebral cortex is the most developed and is the organ of thinking, which dominates all the activities in the body and regulates the balance between the body and the surrounding environment, so the cerebral cortex is the material basis for high-level neural activities.

External structures of the brain:

The brain includes the telencephalon and diencephalon, and the telencephalon includes the left and right cerebral hemispheres. The telencephalon is the main part of the higher nervous system of the vertebrate brain, composed of the left and right hemispheres, and is the largest part of the brain in humans, and is the high-level nerve center that controls movement, produces sensations and realizes higher brain functions.

The telencephalon of vertebrates is a thin-walled bulge at the tip of the neural tube when it is embryonic, and later develops into two hemispheres of the brain, mainly including three parts: cerebral cortex, cerebral medulla and basal nucleus. The cerebral cortex is gray matter that covers the surface of the telencephalon and is mainly composed of the cell bodies of neurons. The deep part of the cortex is made up of the medulla, or white matter, formed by nerve fibers.

The telencephalon is made up of about 14 billion cells, weighs about 1,400 grams, has a thickness of about 2-3 millimeters in the cerebral cortex, and has a total area of about 2,200 square centimeters, and it is estimated that about 100,000 brain cells die every day. The main component of the human brain is blood, blood accounts for 80%, although the brain only accounts for 2% of the human body weight, but the oxygen consumption is 25% of the oxygen consumption of Qingqin's whole body, and the blood flow accounts for 15% of the blood output of the heart.

a.Frontal lobe. b.Parietal lobe.

c.Shima macro is a source of sheltered leaves.

d.Temporal lobe. e.Occipital lobe.

Correct answer: c

The brain consists of the left and right hemispheres and the middle part that connects the two hemispheres, the endplate at the front of the third ventricle. The cerebral hemispheres are covered with gray matter, called the cerebral cortex, and its deep white matter is called the medulla. The gray matter nucleus in the medulla is the basal ganglia.

Between the two hemispheres of the brain are connected by giant bundles of fibers.

The specific names include five parts: each lobe of the cerebral hemisphere, the functional localization of the cerebral cortex, the deep structure of the cerebral hemisphere, the white matter in the cerebral hemisphere, the olfactory brain and the limbic system.

Functional differences between the left and right brains:

The right brain (instinctive brain and conscious brain), the left brain (conscious brain).

Graphical functions (planning, creativity and imagination);

Resonance with the universe (sixth sense, telekinesis, clairvoyance, intuition, inspiration, dreams, etc.);

ultra-high-speed automatic calculus (mental arithmetic and mathematics);

Ultra-high-speed mass memory (speed reading, memory) Knowledge, knowledge, understanding, thinking, judgment, reasoning, language, and inhibition of the five senses (sight, hearing, smell, touch, and taste).