Nervous System Flashcards
It is involved in receiving information about the environment around us and generating responses to that information and coordinating the system
Nervous System
The main processing center for the entire nervous system. It consists two main components, the brain and spinal cord
Central Nervous System (CNS)
An organ that located within the skull that function as organizer and distributor of information for the body
Brain
Serves as a channel for signals between the brain and the rest of the body, and controls simple muscolosketal reflexes without input to from the brain
Spinal Cord
It connects the central nervous system to the organs and limbs and it has two main division, the spinal nerves and cranial nerves
Peripheral Nervous System (PNS)
The nerves that carry motor and sensory signals between the spinal cord and the body
Spinal Nerve
The nerve fibers that carry information into and out of the brain stem
Cranial Nerve
Is is activated when the body is in a dynamic role or stress
Sympathetic
Maintains body functions and restores the body to normal or relaxed mode
Parasympathetic
Major functions of the Nervous System
Sensation, Integration, and Response
Refers to receiving information (stimuli/stimulus) about the environment, either what is happening outside or inside the body
Sensation
Refers to anything that causes a response
Stimuli
Received by sensory structures are communicated to the nervous system where that information is processed
Integration
The nervous system produces a response in effector organs (such as muscles or glands) due the sensory stimuli
Response
It is the major part of the brain that ontrols the activities, thoughts, and five senses
Cerebrum