The Human Brain

Nervous System disorders

Nervous System regulation biology help please help? 1. ________ is the hormone secreted by the adrenal cortex that stimulates the kidneys to retain ________ ions and maintain the concentration of mineral ions and water in the blood. A) Aldosterone; sodium B) Cortisol; glucose C) Parathormone; calcium D) Aldosterone; potassium 2. Regulation of the secretion of [...]

peripheral Nervous System How is electrical impulse transferred from the peripheral nervous system to the Central Nervous System? impulses coming from the periphery pass through afferent sensory nerve fibers which synapse with a group of neuronal cell bodies called the dorsal root ganglion(DRG) located around the dorsal spinal root. the axons of the neuronal cell [...]

Nervous System Central Nervous System can a molecule 2.5 million daltons larger enter the central nervous system? I know that the blood-Brain barrier allows only molecules of 500 daltons to pass through so you can not pass by. However, how the molecules enter the spinal cord? My biology is not is good at this time. [...]

Nervous System spinal nerves How the 31 pairs of spinal nerves differ from the nerves of the autonomic nervous system? There are some points you need to understand. First, all neurons Preganglionic autonomic Nervous System From Brain Stem or the lateral horns of the spinal cord. Motor neurons Voluntary spinal cord comes from the ventral [...]