Nervous system, autonomic
the sympathetic nervous system, which accelerates the heart rate, constricts blood vessels, and raises blood pressure, and the parasympathetic nervous system, which slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles.
Read Also:
- Nervous system, central (CNS)
That part of the nervous system that consists of the brain and spinal cord. The central nervous system (CNS) is one of the two major divisions of the nervous system. The other is the peripheral nervous system (PNS), that part of the nervous system that lies outside the brain and spinal cord. The peripheral nervous […]
- Nervous system, human
The sum total of the tissues that record and distribute information within a person, and does so by electrical and chemical means. The nervous system has two distinct parts — central and peripheral. The central part is made up of the brain and spinal cord. Together they are the central nervous system (CNS). The peripheral […]
- Nervous system, parasympathetic
The part of the involuntary nervous system that serves to slow the heart rate, increase intestinal and glandular activity, and relax the sphincter muscles. The parasympathetic nervous system, together with the sympathetic nervous system, constitutes the autonomic nervous system.
- Nervous system, peripheral (PNS)
That portion of the nervous system that is outside the brain and spinal cord. The peripheral nervous system (PNS) is one of the two major divisions of the nervous system. The other is the central nervous system (CNS) which is made up of the brain and spinal cord. The nerves in the peripheral nervous system […]
- Nervous system, sympathetic
A part of the nervous system that serves to accelerate the heart rate, constrict blood vessels, and raise blood pressure. The sympathetic nervous system and the parasympathetic nervous system constitute the autonomic nervous system.