What are the 4 areas of the brains and what are they responsible for?
What are the 4 areas of the brains and what are they responsible for?
The four lobes of the brain are the frontal, parietal, temporal, and occipital lobes (Figure 2). The frontal lobe is located in the forward part of the brain, extending back to a fissure known as the central sulcus . The frontal lobe is involved in reasoning, motor control, emotion, and language.
What are the brain’s 3 main parts?
The brain can be divided into three basic units: the forebrain, the midbrain, and the hindbrain. The hindbrain includes the upper part of the spinal cord, the brain stem, and a wrinkled ball of tissue called the cerebellum (1).
What part of the brain controls blood?
The brain stem sits beneath your cerebrum in front of your cerebellum. It connects the brain to the spinal cord and controls automatic functions such as breathing, digestion, heart rate and blood pressure.
What are the four different lobes?
The cerebral cortex is divided lengthways into two cerebral hemispheres connected by the corpus callosum. Traditionally, each of the hemispheres has been divided into four lobes: frontal, parietal, temporal and occipital.
What is the most important part of the brain?
The Brainstem: Middle of the Brain Think of the brainstem like a computer hard-drive. It is the body’s main control panel and is responsible for conveying messages between the brain and other parts of the body. The cerebrum, the cerebellum and the spinal cord are all connected to the brainstem.
What are the two major parts of the brain?
The cerebrum, which forms the major portion of the brain, is divided into two major parts: the right and left cerebral hemispheres. The cerebrum is a term often used to describe the entire brain. A fissure or groove that separates the two hemispheres is called the great longitudinal fissure.
Which part of the brain is the largest and is divided into 4 lobes?
The cerebral cortex
The cerebral cortex is what we see when we look at the brain. It is the outermost portion that can be divided into four lobes.
How does the brain regulate blood flow?
Cerebral blood flow is largely independent of perfusion pressure when autoregulation is intact. Cerebral circulation is regulated mainly by changes of vascular resistance. Resistance can be modulated by local-chemical and endothelial factors, by autacoids, and by release of transmitters from perivascular nerves.
What are the major functions of the brain?
The human brain is magnificent and complex. The brain is made up of many parts, each with a specific and important function. It controls our ability to balance, walk, talk, and eat. It coordinates and regulates our breathing, blood circulation, and heart rate.
What is the most protected brain part?
The brain is the best protected organ in the body. It has multiple layers of protection starting with the first layer of protection being the skull or cranium, which acts as armor shielding the brain from blows.
What are the major lobes of the brain?
Traditionally, each of the hemispheres has been divided into four lobes: frontal, parietal, temporal and occipital. Although we now know that most brain functions rely on many different regions across the entire brain working in conjunction, it is still true that each lobe carries out the bulk of certain functions.
Why are the four lobes of the brain important?
Each side of your brain contains four lobes. The frontal lobe is important for cognitive functions and control of voluntary movement or activity. The parietal lobe processes information about temperature, taste, touch and movement, while the occipital lobe is primarily responsible for vision.
What are the four components of blood?
A: Blood has four components: plasma, red blood cells, white blood cells and platelets. Plasma is the liquid component of blood, in which the other three components are suspended.
What is the blood supply to the brain and spinal cord?
The Blood Supply of the Brain and Spinal Cord – Neuroscience – NCBI Bookshelf The entire blood supply of the brain and spinal cord depends on two sets of branches from the dorsal aorta. The vertebral arteries arise from the subclavian arteries, and the internal carotid arteries are branches of the common carotid arteries.
What are the four main parts of the brain?
The brain is divided into four main parts which are further divided into smaller sections, each performing specific brain functions. These four main structures are the cerebrum, the cerebellum, the diencephalon, and the brainstem.
What are the 4 lobes of the brain?
Lobes of the Brain and What They Control Each brain hemisphere (parts of the cerebrum) has four sections, called lobes: frontal, parietal, temporal and occipital. Each lobe controls specific functions.