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Human Anatomy 8
| Question | Answer |
|---|---|
| The three divisions of the brain that make up the brainstem are the | medulla oblongata, midbrain, and pons |
| The large fluid-filled spaces within the brain are called | ventricles |
| The two efferent divisions of the autonomic nervous system are the | sympathetic and parasympathetic divisions |
| The dorsal root of each spinal nerve is easily recognized as a welling called the | dorsal root ganglion |
| Individual nerves that emerge from the ___ plexus innervate the lower part of the shoulder and the entire arm | brachial |
| A subdivision of the nervous system that regulates involuntary effectors is the ____ nervous system | autonomic |
| The ventral rami of most spinal nerves subdivide to form complex networks called | plexuses |
| Formation of the cerebrospinal fluid occurs in the | choroid plexus |
| The inner protective covering of the brain is called the | meninges |
| The enteric nervous system is made up of a complex network of nerve plexuses that control the visceral effectors in the | intestinal wall |
| 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 |
| 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 and postganglionic neurons in other chain ganglia -passes through one or more ganglia without synapsing |
| 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 |
| How many pairs of spinal nerves are connected to the spinal cord? | 31 |
| 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 |
| Cerebrospinal fluid circulates through the ventricles, into the central canal, and _____, and is absorbed back into the blood. | subarachnoid space |
| There are ____ ventricles in the brain | four |
| The spinal cord does not completely fill the spinal cavity | True |
| The spinal cord extends from the foramen magnum to the first lumbar vertebra | True |
| The spinal cord has anterior and posterior grooves that almost divide the cord into symmetrical halves. | True |
| Plexus of the spinal nerves | Cervical, brachial, lumbar |
| Nerve fibers of the spinothalamic tract are | Sensory |
| the parts of the cerebrum associated with anger, fear, and sorrow is the | limbic system |
| The brainstem includes | -pons -medulla -midbrain |
| Which part of the brain releases the hormone melatonin | Pineal gland |
| Spinal nerves are ____ fibers | motor and sensory |
| The cranial nerve that arises from the spinal cord is the | accessory |
| 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 |
| Parasympathetic neuron cell bodies are located in | nuclei of the brainstem and the lateral gray columns of the sacral cord |
| All cell bodies of the autonomic nervous system are located within the CNS | False |
| Several 'vital centers' are located in the | medulla |
| The nerve commonly called the vagus nerve is the ____ cranial | tenth |
| The areas specializing in language functions are found in the left cerebral hemisphere in | about 90% of the population |
| The phrenic nerve is found in the ____ plexus | cervical |
| The autonomic nervous system includes efferent and afferent neurons. | True |
| There are ___ lumbar nerve pairs | 5 |
| Axon terminals that secrete acetylcholine are called cholinergic terminals | true |
| The innermost layer of the meninges is the | pia mater |
| Cranial nerves have a functional classification | -oculomotor -trochlear -accessory |
| The layer of the meninges that serves as the inner periosteum of the cranial bone is the | dura mater |
| The spinal ganglion can be found on the ___ of the spinal nerve | dorsal nerve root |
| The spinal tract is located on the side of the cord, originates in the brain and terminates in the spinal cord in the ___ tract | lateral corticospinal |
| Branches of the trigeminal nerve | -ophthalmic nerve -maxillary nerve -mandibular nerve |
| The cervical plexus | -is found deep in the neck -is formed by the ventral rami of the first four cervical nerves and part of the CC5 - includes the phrenic nerve |
| The main divisions of the central nervous system are the | brain and spinal cord |
| Small branches from the cervical plexus join which two cranial nerves | hypoglossal and accessory |
| The sensory cranial nerves include only the | -olfactory -optic -vestibulocochlear |
Created by:
bandgeeksunite2013