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Solutions 2025.
Chapter 16 - Answer Nervous Tissue
What are the functions of the nervous system? - Answer Sense, integrate, and act
How does the nervous system sense? - Answer Sensory receptors and neurons
What detects stimuli internally and externally? - Answer Sensory receptors and neurons
What is sending information back to the central nervous system? - Answer Afferent pathway
What pathway does the nervous system take to sense? - Answer Afferent pathway
What is what we are going to do with the information? - Answer Integrate
How does the nervous system integrate? - Answer Interneurons within the CNS (brain and
spinal cord)
What analyzes sensory info, provides perception, stores info, and makes decisions regarding
response? - Answer Interneurons within the CNS (brain and spinal cord)
What is the main job of the central nervous system? - Answer Integrate
What is the motor or action of the nervous system? - Answer Act
How does the nervous system act? - Answer Motor neurons and effectors
What responds to integration decisions by initiating actions in muscles, glands, etc? - Answer
Motor neurons and effectors
,What sends information from CNS to an effector? - Answer Efferent pathway
What does the CNS consist of? - Answer Brain and spinal cord
What does the PNS consist of? - Answer Cranial nerves, spinal nerves, ganglia, plexuses, and
sensory receptors in skin
What are bundles of 100-1000 axons? - Answer Nerve
What does a nerve consist of? - Answer Connective tissue and blood vessels
What sends information up the afferent pathway to the CNS? - Answer Sensory nerve
What is outside the CNS and follows a designed path? - Answer Nerves
What emerges from the base of the brain? - Answer Cranial nerves and their branches
How many pairs of cranial nerves are there? - Answer 12 pairs (right and left for each of them)
What emerges from the spinal cord? - Answer Spinal nerve
How many pairs of spinal nerves are there? - Answer 31 pairs
What are neurons that interconnect with other neurons to set up "circuit boards" for
information integration/perception? - Answer Interneurons
What is majority of the CNS? - Answer Interneurons
What detects internal and external stimuli in the peripheral, not the CNS? - Answer Sensory
receptor
What are afferent nerves that carry sensory info to CNS? - Answer Sensory neuron
,What are the divisions within the PNS? - Answer Somatic (SNS), Autonomic (ANS), and Enteric
(ENS)
What PNS is voluntary? - Answer Somatic
What PNS is involuntary? - Answer Autonomic
What does the somatic nervous system consist of? - Answer Sensory neurons in skin, skeletal
muscle, joints, and senses
What PNS is motor neurons to skeletal muscle? - Answer Somatic
What does the autonomic nervous system consist of? - Answer Sensory neurons in visceral
organs
What PNS is motor neurons to smooth, cardiac muscle, and glands? - Answer Autonomic
What are the 2 divisions within the motor portion of the ANS? - Answer Sympathetic and
parasympathetic
What is generally "fight or flight" response that regulates the cardiovascular system? - Answer
Sympathetic
What is generally "rest and digest" responses and regulates digestive and respiratory systems? -
Answer Parasympathetic
What ANS excites? - Answer Sympathetic
What ANS depresses and relaxes? - Answer Parasympathetic
What is the "brain of the gut"? - Answer Enteric nervous system
, What are the two types of nervous tissue? - Answer Neurons and neuroglia
What is another name for neuron? - Answer Nerve cell
What comprises the circuitry connecting all regions of the body to the nervous system? -
Answer Neurons
What has electrical excitability, conducts at speeds 1-280 mph, and produces action potentials?
- Answer Neurons
What are smaller cells that greatly outnumber neurons? - Answer Neuroglia
What supports, nourishes, and protects neurons and is not electrically excitable? - Answer
Neuroglia
What does a neuron consist of? - Answer Cell body and nerve fibers
What does the cell body of a neuron consist of? - Answer Nucleus
What are cell bodies right outside of spinal cord? - Answer Ganglion
What produces a bunch of proteins which is important for neuron health? - Answer Nissl
bodies
What is any projection from the cell? - Answer Nerve fibers
What are some nerve fibers? - Answer Dendrites and axons
What is not a cell body, highly branched with no set number, and unmyelinated? - Answer
Dendrites
What is on the receiving side of the neuron? - Answer Dendrites