An overview of the brain and the different roles of its system

The medulla oblongata connects the brain with the spinal cord.

parts of the human brain

What is the spinal cord made of? Evolution of human intelligence: The roles of brain size and mental construction.

Brain functions

Rather, the neuroglia provide structural support and a source of metabolic energy for the roughly billion nerve cells of the human brain. The cerebral cortex has sulci small grooves , fissures larger grooves and bulges between the grooves called gyri. These cells do not connect the neurons, as their name implies; connections are already far from scarce, with the vast system of neural soma, axons, and dendrites packed so densely into the brain. The Brain Initiative has achieved several of its goals. The Cerebellum's Balancing Act Next up is the cerebellum. Dura Mater: In the brain, the dura mater is made up of two layers of whitish, nonelastic film or membrane. The amygdala is also responsible for learning on the basis of reward or punishment. The primary area for visual perception is almost surrounded by the much larger visual association area. Instead, the cerebellum serves to modify these signals and make motor movements accurate and useful. The reticular activating system is found in the midbrain, pons, medulla and part of the thalamus.

Laterality: Asymmetries of Body, Brain, and Cognition, 8 2— The midbrain controls many important functions such as the visual and auditory systems as well as eye movement.

McKeever, W. The spherical shape above the medulla is the pons, a structure in the brain stem that helps control the movements of the body, playing a particularly important role in balance and walking. This creates a much greater surface area and size, and allows increased capacities for learning, remembering, and thinking.

The Amygdala The amygdala is a small almond-shaped structure; there is one located in each of the left and right temporal lobes. Here are some examples of functions that the brain controls: movement such as walking or stretching seeing, smelling, touching, tasting, and hearing the 5 senses emotions, thoughts, and memory digesting food talking and understanding The brain is like a busy city.

Underneath lies the brainstem, and behind that sits the cerebellum. Cranial nerves The brain communicates with the body through the spinal cord and twelve pairs of cranial nerves Fig. The limbic system is responsible for most of the basic drives and emotions and the associated involuntary behavior that are important for an animal's survival: pain and pleasure, fear, anger, sexual feelings, and even docility and affection.

For example, the cerebellum helps control posture, balance, and the coordination of voluntary movements. The temporal lobes are located on either side of the head on the same level as the ears.

Rated 6/10 based on 28 review
Download
Brain Anatomy, Anatomy of the Human Brain