CH: 15 Nervous System - Study Flashcards
The autonomic nervous system controls the ________ _________ and helps maintain ____________
internal environment and helps maintain homeostasis
15.1 Comparison of the Somatic and Autonomic Nervous Systems
The nervous system can be functionally organized into the ____ and ____ based upon whether the sensory input or motor output can be consciously regulated
somatic nervous system (SNS)
Autonomic nervous system ( ANS)
Sensory input also known as
afferent input
Motor output is also known as
efferent output
15.1 Comparison of the Somatic and Autonomic Nervous Systems
15.1a Functional Organization
The _____ nervous system includes _____ input from the special senses, skin, muscles and joints and _____ output to control _____ muscle.
somatic
sensory
motor
skeletal
15.1 Comparison of the Somatic and Autonomic Nervous Systems
15.1a Functional Organization
The ______ nervous system includes _____ motor output to ______ muscle, ____ muscle, and glands and responds to ____ input from ______ sensory components.
Autonomic
involuntary
cardiac
smooth
visceral
15.1 Comparison of the Somatic and Autonomic Nervous Systems
15.1c CNS Control of the Autonomic Nervous System
Autonomic function is regulated by three CNS regions:
hypothalamus,
brainstem,
spinal cord
15.2 Divisions of the Autonomic Nervous System
15.2a Functional Differences
The _______ division is primarily concerned with maintaining ________ when the body is at _____, which includes conserving _____ and replenishing nutrient stores.
parasympathetic
homeostasis
rest
energy
15.2 Divisions of the Autonomic Nervous System
15.2a Functional Differences
The _____ division is primarily concerned with maintaining _____ in conditions of _______.
sympathetic
fight or flight
15.2 Divisions of the Autonomic Nervous System
15.2b Anatomic Differences in Lower Motor
Parasympathetic preganglionic neurons reside in the ____ and ____ regions of the _____ ____.
brainstem and sacral
spinal cord
15.2 Divisions of the Autonomic Nervous System
15.2b Anatomic Differences in Lower Motor
Sympathetic preganglionic axons reside in the ____ and ____ regions of the _____ ____.
thoracic and lumbar
spinal cord
15.2 Divisions of the Autonomic Nervous System
15.2c Degree of Response
The _______ response tends to be _____ and ______ whereas the ________ response has the potential to produce a mass ________ effect.
parasympathetic
discrete and localized
sympathetic
activation
15.3 Parasympathetic Division
The parasympathetic division is also known as the ________ system, because of the location of its _______ neurons.
craniosacral
preganglionic
15.6 The two main types of receptors are ________ and _________ receptors
cholinergic
adrenergic
Most organs are innervated by both divisions of the ______
ANS
