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Anatomy Activity 8

Week 8

QuestionAnswer
The inner protective covering of the brain is called the meninges
The ventral rami of most spinal nerves subdivide to form complex networks called plexuses
Individual nerves that emerge from the _____ plexus innervate the lower part of the shoulder and the entire arm. brachial
If you trace the axon inside the sympathetic chain ganglion, the preganglionic fiber branches along which pathway? synapses with a sympathetic postganglionic neuron, sends ascending or descending branches through the sympathetic trunk to synapse with postganglionic neurons in other chain ganglia, and passes through one or more ganglia without synapsing (all)
A subdivision of the nervous system that regulates involuntary effectors is the _____ nervous system. autonomic
The lower end of the spinal cord, with its attached spinal nerve roots, gives the appearance of a horse’s tail called the cauda equina
How many pairs of spinal nerves are connected to the spinal cord? 31
The large fluid-filled spaces within the brain are called the ventricles
The dorsal root of each spinal nerve is easily recognized as a swelling called the dorsal root ganglion
Spinal cord tracts provide conduction paths to and from the brain. The tracts that conduct sensory impulses down the cord from the brain are called _____ tracts. descending
Dendrites and cell bodies of sympathetic preganglionic neurons are located in the gray matter of the thoracic and upper lumbar segments of the spinal cord.
Formation of the cerebrospinal fluid occurs in the choroid plexus
The two efferent divisions of the autonomic nervous system are the sympathetic and parasympathetic divisions.
The enteric nervous system is made up of a complex network of nerve plexuses that control the visceral effectors in the intestinal wall
The three divisions of the brain that make up the brainstem are the medulla oblongata, midbrain, and pons.
Created by: Janelleu4771
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