Chapter 12 Anatomy and Physiology Tortora, Derrickson
Study online at https://quizlet.com/_jpfi49
1. Central Nervous Consists of the brain and spinal chord
System (CNS)
2. Peripheral Ner- Consists of all nervous tissue outside the CNS
vous System
(PNS)
3. Cranial Nerves Nerves which emerge from the brain. There are 12 pairs
4. Spinal Nerves Nerves which emerge from the spinal cord; there are 31 pairs
5. Ganglia (swelling or knot) small masses of nervous tissue, consisting primarily of neuron
cell bodies, that are located outside of the brain and spinal chord; closely associ-
ated with cranial and spinal nerves
6. Enteric Plexuses extensive networks of neurons located in the walls of organs of the gastrointestinal
tract; help regulate the digestive system
7. Sensory Recep- structure of the nervous system that monitors changes in the external or internal
tor environment (like touch, smell, vision)
8. Somatic Nervous Type of PNS that is voluntary
System
9. Autonomic Ner- Type of PNS that is involuntary
vous System
10. the motor part of the ANS which is responsible for "fight-or-flight" body responses
, Chapter 12 Anatomy and Physiology Tortora, Derrickson
Study online at https://quizlet.com/_jpfi49
Sympathetic Divi-
sion
11. Parasympathetic the motor part of the ANS which is responsible for "rest-and-digest" activities
Divion
12. Enteric Nervous Part of the peripheral Nervous System which is the "brain of the gut" and is
System involuntary
13. Sensory Function function of the NS in which receptors detect internal stimuli such as an increase in
blood pressure, or external stimuli (for example, a raindrop landing on your arm);
this sensory information is then carried into the brain and spinal cord through
cranial and spinal nerves
Afferent
14. Integrative func- function of the NS in which the nervous system processes sensory information by
tion analyzing it and making decisions for appropriate responses
15. Motor function Function of the NS - once sensory information is integrated, the nervous system
may elicit an appropriate motor response by activating effectors (muscles and
glands) through cranial and spinal nerves
16. Electrical ex- The ability to respond to a stimulus and convert it into an action potential
citability
17. Stimulus Any change in the environment that is strong enough to initiate an action potential
18. Action Potential Or nerve impulse, is an electrical signal that propagates (travels) along the surface
of the membrane of a neuron. It begins and travels due to the movement of ions
19. Nissl Bodies Prominent clusters of rough ER in the soma of the neuron
20. Neurofibrils Bundles of intermediate filaments of the sytoskeleton of the soma, that provide
the cell shape and support
Study online at https://quizlet.com/_jpfi49
1. Central Nervous Consists of the brain and spinal chord
System (CNS)
2. Peripheral Ner- Consists of all nervous tissue outside the CNS
vous System
(PNS)
3. Cranial Nerves Nerves which emerge from the brain. There are 12 pairs
4. Spinal Nerves Nerves which emerge from the spinal cord; there are 31 pairs
5. Ganglia (swelling or knot) small masses of nervous tissue, consisting primarily of neuron
cell bodies, that are located outside of the brain and spinal chord; closely associ-
ated with cranial and spinal nerves
6. Enteric Plexuses extensive networks of neurons located in the walls of organs of the gastrointestinal
tract; help regulate the digestive system
7. Sensory Recep- structure of the nervous system that monitors changes in the external or internal
tor environment (like touch, smell, vision)
8. Somatic Nervous Type of PNS that is voluntary
System
9. Autonomic Ner- Type of PNS that is involuntary
vous System
10. the motor part of the ANS which is responsible for "fight-or-flight" body responses
, Chapter 12 Anatomy and Physiology Tortora, Derrickson
Study online at https://quizlet.com/_jpfi49
Sympathetic Divi-
sion
11. Parasympathetic the motor part of the ANS which is responsible for "rest-and-digest" activities
Divion
12. Enteric Nervous Part of the peripheral Nervous System which is the "brain of the gut" and is
System involuntary
13. Sensory Function function of the NS in which receptors detect internal stimuli such as an increase in
blood pressure, or external stimuli (for example, a raindrop landing on your arm);
this sensory information is then carried into the brain and spinal cord through
cranial and spinal nerves
Afferent
14. Integrative func- function of the NS in which the nervous system processes sensory information by
tion analyzing it and making decisions for appropriate responses
15. Motor function Function of the NS - once sensory information is integrated, the nervous system
may elicit an appropriate motor response by activating effectors (muscles and
glands) through cranial and spinal nerves
16. Electrical ex- The ability to respond to a stimulus and convert it into an action potential
citability
17. Stimulus Any change in the environment that is strong enough to initiate an action potential
18. Action Potential Or nerve impulse, is an electrical signal that propagates (travels) along the surface
of the membrane of a neuron. It begins and travels due to the movement of ions
19. Nissl Bodies Prominent clusters of rough ER in the soma of the neuron
20. Neurofibrils Bundles of intermediate filaments of the sytoskeleton of the soma, that provide
the cell shape and support
