Nervous system

Wernicks aphasia

Inablity to understand language (written or spoken form) They can not use correct words to express thoughts. When they speak, they think they know what they are saying but a bunch of random words come out. Patient is unaware of his problem.

Broca's aphasia

Loss of the ability to produce language (spoken or written).

Homeostasis

Psychological Homeostasis is a neural and physical process that maintain the equilibrium of mental states or equanimity that would enable a human to live and perform at normal levels.

Spatial neglect

Spatial neglect is a in primatial lobe damage lose attention and awareness common syndrome following stroke, most frequently of the right side of the brain. Such patients fail to be aware of objects or people to their left. For example, when searching through a visual scene, patients with left neglect tend to look at elements on the right only.

Split brain

Split-brain is a lay term to describe the result when the corpus callosum connecting the two hemispheres of the brain is severed to some degree. Helps with a lot of epilepsy

The Autonomic Nervous System

The autonomic system is the part of the peripheral nervous system responsible for regulating involuntary body functions, such as blood flow, heartbeat, digestion and breathing. This system is further divided into two branches

Central nervous system -cns

The central nervous system (CNS) is comprised of the brain and spinal cord. The CNS receives sensory information from the nervous system and controls the body's responses. The CNS is differentiated from the peripheral nervous system, which involves all of the nerves outside of the brain and spinal cord that carry messages to the CNS.

Parasympathetic

The parasympathetic system helps maintain normal body functions and conserve physical resources. Once a threat has passed, this system will slow the heart rate, slow breathing, reduce blood flow to muscles and constrict the pupils.

Peripheral nervous system

The peripheral nervous system (PNS) is the division of the nervous system containing all the nerves that lie outside of the central nervous system (CNS). The primary role of the PNS is to connect the CNS to the organs, limbs and skin. These nerves extend from the central nervous system to the outermost areas of the body.

The peripheral nervous system is divided into two parts

The somatic nervous system The autonomic nervous system

Somatic

The somatic system is the part of the peripheral nervous system responsible for carrying sensory and motor information to and from the central nervous system. T

Sympathetic

The sympathetic system regulates the flight-or-fight responses. This system prepares the body to expend energy and deal with potential threats in the environment. When action is needed, the sympathetic system will trigger a response by speeding up the heart rate, increasing breathing rate, increasing blood flow to muscles, activating sweat secretion and dilating the pupils.