Internal Balance Flashcards
What are Autonomic Functions?
Functions that are not normally under conscious control (formally vegetative functions
What are the 3 body systems?
Somatic, Autonomic Nervous systems and Endocrine system
Somatic Nervous System
Voluntary control over bones & muscles
Autonomic Nervous System
Unconscious tasks (heart rate, blood pressure, digestion etc.)
Endocrine System
Production & Release of hormones
4 advantages of ANS control over autonomic functions
It is relatively fast and direct
It coordinates across a wide area of the body
It is flexible in the response types
It acts on structures with intrinsic activity
What is the ANS
a pervasive neural network that helps to maintain homestasis
How does the ANS mediate relatively rapid responses?
direct nerve control over peripheral structures
What are the 3 components in the ANS loop?
motor (efferent) arm
high-level integrative control
sensory (afferent) feedback
What are the 3 divisions of the ANS?
Sympathetic (fight/flight/fright)
Parasympathetic (rest/relax/recover)
Enteric (gastrointestinal tract function)
What are the components of the ANS motor arm’s two-neuron chain?
Pre-ganglion neuron
Post-ganglion neuron