Overview of the Nervous System - Nervous System - Merck Veterinary ManualSCHUBERT.THOMAS
Motornervous system Somatic motor nervous system Autonomic [motor] nervous system (ANS) Sympatheticdivision Parsympatheticdivision Explore animationsof the organization of the nervous system –click here(optional) The reflex arc Afferentpathway (afferent = toward) ...
The spinal cord is part of the central nervous system and serves as a kind of superhighway. Sensory information and motor commands travel up and down, heading to and from the brain. These signals speed in and out of the spinal cord via spinal nerves—the “on-ramps and off-ramps” that...
Autonomic Nervous System Overview Heart (control of heart rate via contractility, refractory states, cardiac conduction) Blood vessels (constriction and dilation of arteries/veins) Lungs (relaxation of smooth muscles of the bronchioles) Digestive system (gastrointestinal motility, saliva production, sphincter...
1.2.1Somatic Nervous System Thesomaticnervous systemconsists of the cell bodies located in either thebrainstemor the spinal cord. They have an extremely long courseas they do not synapse after they leave theCNSuntil they are at their termination in skeletal muscle. They consist of large diameter...
Learn about the central and peripheral nervous system with our 5-minute video lesson. Explore their components and functions, then test your knowledge with a quiz.
industrial chemicals can have a negative impact on the well-functioning of the nervous system. They can cause acute or/andchronic toxicitiesand these effects can be even more dramatic if they take place during the developmental period. This developmentalneurotoxicity(DNT) can cause permanent impairment...
Afferent sensory neurons of the peripheral nervous system carry information through the spinal cord to the thalamus of the brain. The thalamus acts like a relay station to send incoming sensory information to the correct part of the brain. What is the role of afferent neurons? Afferent neurons ...
The study of diseases of the nervous system. Neurophysiology The study of the function of the nervous system. Spinal nerves Have 31 pairs. Aphasia An acquired neurogenic disorder. Main function of the brain Protection. Motor commands The brain generates motor commands for speech and general informat...
Central Nervous System Consists of the brain and spinal cord, directs behavioral output. Peripheral Nervous System Connects CNS to the rest of the body, includes afferent and efferent neurons. Neurons Process electrochemical signals to communicate with muscles and organs. Glial Cells Support neurons, ...