Concept explainers
Case summary:
In the given case, the patient Brian Rhen was found holding his head on the side of the road at the bus crash site. A severe headache and nausea were reported by him. After several days, he reported vertigo, and therefore, was referred to a neurologist. He was diagnosed with BPPV (benign paroxysmal positional vertigo). One of the causes of this is the dislodgment of the otoliths from the otolithic membrane. In this case, Mr. Brian experienced vertigo when he rolled over in bed, while sitting up, or while turning head from side to side.
Characters in the case:
Brian Rhen.
Adequate information:
Certain positions, such as rolling, sitting up, or moving head side to side, provoke vertigo in Mr. Brian.
To determine:
Based on the triggering positions of vertigo, the part of the vestibular apparatus that may be affected by the displaced otoliths.
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Chapter 13 Solutions
EBK ANATOMY & PHYSIOLOGY
- Julio D., who had recently retired, was enjoying an afternoon of playing golf when suddenly he experienced a severe headache and dizziness. These symptoms were quickly followed by numbness and partial paralysis on the tipper right side of his body, accompanied by an inability to speak. After being rushed to the emergency room, Julio was diagnosed as having suffered a stroke. Given the observed neurological impairment, what areas of his brain were affected?arrow_forwardWhen removing cerebrospinal fluid during a spinal tap, the needle is inserted below L2. Explain why spinal taps are not done above this level.arrow_forwardA 78-year-old male presents for a hospital follow-up, post-stroke, two days ago. During the neurologic portion of the physical exam, the patient cannot feel the cotton tip of an applicator as you brush it along his left forehead, cheek, and jaw on the left side of his face. Based on this scenario and phsyical exam findings, which of the following cranial nerves is most likely affected? Answers: A-D A Cranial nerve 9 B Cranial nerve 12 C Cranial nerve 5 D Cranial nerve 7 Oarrow_forward
- An individual sustains injuries to only the ascending tract of the spinal cord.will this person experience deficits in movement,sensation,both or neither?explain.arrow_forwardA patient with a cerebral lesion exhibits loss of fine motor control ofthe left hand, arm, forearm, and shoulder. All other motor and sensoryfunctions appear to be intact. Describe the location of the lesion asprecisely as possiblearrow_forwardA 40 year old male has just been diagnosed with amyotrophic lateral sclerosis, better known as Lou Gehrig’s Disease. A recent MRI has shown significant demyelination of the gracile nucleus of the dorsal columnar-medial lemniscal pathway. Describe the physiology of this pathway and discuss what neurological deficits this patient will experience due to his lesion.arrow_forward
- Information from proprioceptors and and fine touch enter the spinal cord, and they 1) synapse and 2) cross over to the other side: 1) immediately 2) in the brainstem 1) immediately 2) immediately O 1) in the brainstem 2) immediately 1) in the brainstem 2) in the brainstemarrow_forwardSensory Perception Mrs. Dodd is a 51-year-old client who is being cared for in the critical care unit following an automobile crash in which she suffered extensive traumatic injuries. Mrs. Dodd is connected to several monitoring devices, has an intubation tube and ventilator to assist her with respirations, and is receiving various pain and other medications. a. Identify factors that place Mrs. Dodd at risk for the development of sensory deprivation or overload. b. What can you intervene to help Mrs. Dodd during this stressful event? c. How might the care of a client in the home setting differ from the care of a client such as Mrs. Dodd who is receiving care in a critical care unit?arrow_forwardBell’s Palsy affects the facial nerve and most often presents with motor symptoms only. Yet the facial nerve is a mixed sensory nerve; suggest possible reasons for this anomaly.arrow_forward
- 42 A patient comes to the physician because in church he has begun falling every time he closes his eyes while standing for prayer. He has also noted progressive difficulty walking, he lifts each foot high and stamps it forcefully on the ground with each step. He must watch his feet while walking to avoid striking doors or other obstacles with them. The disorder producing these symptoms most likely involves which of the following structures? A) Cerebellum B) Joints C) Muscles D) Motor cortex E) Posterior columnsarrow_forwardWhy is the cauda equina ideal for performing a spinal tap and epidural anesthesiaarrow_forwardWhen their second child was born, Kiko and Taka were told their baby had spina bifida and would be kept in intensive care for a week. After that time, a “shunt” would be put in. Also, immediately after the birth, an operation was performed on the infant’s lower back. The parents were told that this operation went well but that their son would always be a “little weak in the ankles.” Explain the statements in quotation marks in more informative and precise language.arrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningComprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage Learning
- Surgical Tech For Surgical Tech Pos CareHealth & NutritionISBN:9781337648868Author:AssociationPublisher:Cengage
![Text book image](https://www.bartleby.com/isbn_cover_images/9781285866932/9781285866932_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305112100/9781305112100_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305964792/9781305964792_smallCoverImage.gif)