part of your brain controls your five senses of sight, smell, taste, touch, and hearing.
a short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body.
pecialized cell transmitting nerve impulses; a nerve cell.
controls the voluntary movements of skeletal muscles; cell bodies of the pyramidal tract are found on this gyrus.
the part of the nervous system responsible for control of the bodily functions not consciously directed, such as breathing, the heartbeat, and digestive processes.
the elongated ridges on the floor of each lateral ventricle of the brain, thought to be the center of emotion, memory, and the autonomic nervous system.
junction between two nerve cells, consisting of a minute gap across which impulses pass by diffusion of a neurotransmitter.
the complex of nerve tissues that controls the activities of the body. In vertebrates it comprises the brain and spinal cord.
releases two hormones within the body in response to stress, resulting in an "adrenaline rush", or a sense of urgency that occurs during stressful conditions. These hormones are called epinephrine and norepinephrine, which help your body perform optimally during such events.
each of the paired lobes of the brain lying immediately behind the forehead, including areas concerned with behavior, learning, personality, and voluntary movement.
a fluid- or air-filled cavity or sac, in particular.
a complex system of nerves and networks in the brain, involving several areas near the edge of the cortex concerned with instinct and mood. It controls the basic emotions (fear, pleasure, anger) and drives (hunger, sex, dominance, care of offspring).
the long threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells.
a chemical substance that is released at the end of a nerve fiber by the arrival of a nerve impulse and, by diffusing across the synapse or junction, causes the transfer of the impulse to another nerve fiber, a muscle fiber, or some other structure.
having the shape of a three-sided pyramid and containing the visual center of the brain.