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Anatomy Week 8 Quiz
| Question | Answer |
|---|---|
| The main divisions of the central nervous system are the: | Brain and Spinal Cord |
| Which part of the brain releases the hormone melatonin? | Pineal Gland |
| Cerebrospinal fluid is found in all of the following except the: | Subdural Space, it is found it the subarachnoid space, the central canal, and the third ventricle. |
| The cranial nerve that arises from the spinal cord is the: | Accessory |
| All of the following cranial nerves have a functional classification of motor except: | vestibulocochlear. |
| Which of the following cranial nerves is responsible for movements of the tongue? | hypoglossal |
| The phrenic nerve is found in the _____ plexus. | cervical |
| The autonomic nervous system includes only efferent neurons. | False |
| Beta Receptors: | Bind norepinephrine |
| The lumbar plexus gives rise to the _____ nerve. | femoral |
| Axon terminals that secrete acetylcholine are called cholinergic terminals. | True |
| Which of the following might occur from the stimulation of parasympathetic fibers? | Increased peristalsis in the digestive tract |
| Sensory neurons can operate in autonomic reflex arcs. | True |
| The spinal nerves are connected to the spinal cord and consist of _____ pairs. | 31 |
| The peripheral nervous system includes: | cranial nerves, the spinal cord, spinal nerves, and their branches. |
| If you were to damage some of the preganglionic fibers that enter the celiac ganglion, what effect would this have on sympathetic stimulation? | Hormones secreted by the adrenal medulla may not reach the various sympathetic effectors, thus delaying the effects of sympathetic stimulatio |
| Conduction to autonomic effectors requires only one efferent neuron. | False |
| The cervicle plexus: | is found deep in the neck, is formed by the ventral rami of the first four cervical nerves and part of C5, includes the phrenic nerve. (all) |
| The brainstem does not include the: | Cerebellum; it does include the pons, medulla, and midbrain |
| Some parasympathetic postganglionic neurons have their cell bodies in nuclei in the brainstem. | False |
| The sensory cranial nerves include only the: | lfactory, optic, and vestibulocochlear |
| “Fight-or-flight” physiological changes include all of the following except: | constriction of respiratory airways; it does include increased conversion of glycogen into glucose, increased sweating, and dilation of blood vessels in skeletal muscles. |
| All cell bodies of the autonomic nervous system are located within the CNS. | False |
| All of the following are characteristics of sympathetic preganglionic neurons except: | they have long fibers from CNS to ganglion; they do secrete acetylcholine, and dendrites and cell bodies are found in the lateral gray columns of thoracic and the first four lumbar segments of the spinal cord. |
| Parasympathetic neuron cell bodies are located in | nuclei of the brainstem and the lateral gray columns of the sacral cord |
| Several “vital centers” are located in the: | medulla |
| The layer of the meninges that serves as the inner periosteum of the cranial bone is the: | dura mater |
| The brain has _____ major divisions. | six |
| Which plexus contains nerves that innervate the lower part of the shoulder and the entire arm? | brachial |
| Which is not true about sympathetic postganglionic neurons? | They produce acetylcholine; they usually are longer than preganglionis neurons and they have acetylcholine receptors on their dendrotes. |
| Nerve fibers of the spinothalamic tract are: | sensory |
| Impulses from which system play a part in arousing or alerting the cerebrum? | Reticular acticating system |
| Visceral effectors are innervated by sympathetic fibers. | true |
| Spinal nerves are _____ fibers. | motor and sensory |
| The nerve commonly called the vagus nerve is the _____ cranial: | tenth |
| The part(s) of the cerebrum associated with anger, fear, and sorrow is (are) the: | limbic |
| Effectors that have single innervation by the autonomic nervous system are innervated only by the parasympathetic division. | false |
| The innermost layer of the meninges is the: Correct! pia mater. | pia mater |
| The areas specializing in language functions are found in the left cerebral hemisphere in: | about 90 % of the population |
| Which of the following is not a plexus of the spinal nerves? | Thoracic; lumbar, brachial, and cervical are plexuses of the spinal nerves. |
| Which of the following is not true of the lateral corticospinal tract fibers? | Most inhibit the lower motor neuron |
| A patient complains of numbness in the skin of the buttocks and the posterior surface of the thigh and leg. The spinal nerve or peripheral branch most likely involved with this condition is the _____ plexus. | coccygeal |
| There are _____ ventricles in the brain. | four |
| Which part of the vertebral column has one more pair of nerves coming from it than it has vertebrae? | Cervical |
| The pyramids are formed in the: | medulla |
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