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PART 2 Anatomy
Anatomy
Definition | |
---|---|
Peripheral nervous system | (PNS) Connect the CNS to the body |
Central nervous system | (CNS) controls the brain and the spinal cord |
Autonomic nervous system | (ANS) controls involuntary movements |
Somatic nervous system | (SNS) controls voluntary movement |
Sympathetic nervous system | (SNS) “fight of flight” |
Parasympathetic nervous system | (PNS) Calming of the body |
Heart | Muscular organ that pumps blood throughout the body, and provides nutrients to the body. |
Chambers | 4 chambers in heart right, and left atria, and right and left ventricles. |
Valves | 4 heart valves in heart to ensure blood flow in one direction. From the aortic valve, the mitral valve, the pulmonary valve, and the tricuspid valve. |
Electrical System | Controls the heart rate and rhythm of the heartbeat. |