The Nervous System Flashcards
The combination and interrelation of the nervous, muscular, and skeletal systems
human movement system
A conglomeration of billions of cells specifically designed to provide a communication network within the human body
Nervous system
The ability of the nervous system to sense changes in either the internal or external environment
Sensory function
The ability of the nervous system to analyze and interpret sensory information to allow for proper decision making, which produces the appropriate response
Integrative function
The neuro-muscular response to the sensory info
Motor function
The cumulative sensory input to the central nervous system from all mechanoreceptors that sense body position and limb movement
Proprioception
The functional unit of the nervous system
Neuron
What are the two parts of the nervous system?
The central nervous system-brain and spinal cord
Peripheral nervous system-contains only nerves and connects the brain and spinal cord to the rest of the body
What are the three primary functions of the nervous system?
Sensory, integrative, and motor functions
Transmit nerve impulses from effector sites such as muscles and organs via receptors to the brain and spinal cord
Sensory (afferent) neurons
Transmit nerve impulses from one neuron to another
Interneurons
Transmit nerve impulses from the brain and spinal cord to effector sites
Motor (efferent) neurons
What are the two subdivisions of the PNS system?
Somatic and autonomic
Consists of nerves that serve the outer areas of the body and skeletal muscle and are largely responsible for the voluntary control of movement
Somatic nervous system
Supplies neural input to the involuntary systems of the body( heart, digestive, endocrine glands)
Autonomic nervous system
