Anatomy and physiology Exam 4 Questions And Answers

The spinal cord is part of the _______ nervous system - ANS central Spinal nerves are both ________ &_________ - ANS sensory and motor The spinal cord consists of ______ regions and _____ segments - ANS five 31 The ______ terminale is a strand of fibrous tissue that provides longitudinal support as a component of coccygeal ligament - ANS filum The dorsal root ganglia mainly contains _______ of sensory neurons - ANS cell bodies The dorsal root of spinal nerve contains ______ of sensory neurons - ANS axons The ventral root of spinal nerve contains axons of ______ neurons - ANS motor A dorsal & ventral root of each spinal segment unite to form a _____ nerve - ANS spinal The specialized membranes that surround the spinal cord are termed spinal - ANS meninges The tough, fibrous, outermost covering of spinal cord is _____ mater - ANS dura The subdural space lies between dura mater and - ANS arachnoid mater The layer of meninges in direct contact with the spinal cord is the - ANS pia mater Blood vessels that supply the spinal cord run along surface of the - ANS pia mater In _______, inflammation of meninges occurs caused by disease or virus where CSF flow can be disrupted. - ANS meningitis The cerebrospinal fluid flows within the - ANS subarachnoid A ______ block is commonly used as a method of pain control during labor and delivery which affects only spinal nerves in immediate area of injection & can provide sensory& motor anesthesia, depending on anesthetic selected. - ANS epidural Samples of CSF for diagnostic purposes are normally obtained by placing tip of needle in - ANS subarachnoid space Bill contracts a viral disease that destroys cells in posterior gray horns in his spinal cord. As a result, which of the following would you expect? - ANS loss of sensation in torso The _____ matter of spinal cord is mainly myelinated &unmyelinated axons - ANS white The outward projections from the central gray matter of the spinal cord are called - ANS horns The _______ horns of spinal cord contain mainly nerve cell bodies - ANS gray The posterior horns of spinal cord contain mainly ________ nuclei - ANS sensory The anterior horns of spinal cord contain mainly ____ nuclei - ANS motor Nerve tracts of fasciculi make up _______ columns - ANS white In spinal cord, white matter are found in ascending & descending tracts organized as - ANS columns Axons crossing from one side of spinal cord to other within gray matter are found in the gray - ANS commissures The white matter of spinal cord contains bundles of axons with common - ANS origins destinations functions In _____ the ulnar nerve arises - ANS brachial plexus Spinal nerves from sacral region of cord innervate the _____ muscles - ANS leg Muscles on neck and shoulder are innervated by spinal nerves from the _____ region - ANS cervical The ventral ram of spinal nerves C5 to T1 contribute fibers to the _______ - ANS brachial plexus In the condition ______, a virus infects dorsal root ganglia, causing painful rash who distributions correspond to that of the affected sensory nerves as seen in their dermatomes - ANS shingles The layer of connective tissue that surrounds a fascicle within a peripheral nerve is the - ANS perineurium The layer of connective tissue that surrounds individual axons within peripheral nerve is termed - ANS endoneurium The complex, interwoven network formed by contributions form ventral rami of neighboring spinal nerves is termed - ANS plexus If a person has a crush injury to C3-C5 spinal segments, you would expect that he might be unable to _____ on his own - ANS breathe As the ______ nerve approaches the knee, it divides into two branches, the fibular nerve and tibial nerve - ANS sciatic Mary is in an automobile accident and suffers a spinal cord injury. She has lost feeling in her lower body. Her doctor tells her swelling is compressing a portion of her spinal cord. Which part of her cord is likely to be compressed? - ANS ascending tracts