What is the function of the tract labeled with the letter E? O Proprioreception Balance and posture O Control of voluntary movement O Somatosensation Cop IDI %23 24 7 8 2 3 4. 7 8. 14 W
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- Watch this short video (http://openstaxcollege.org/l/facialnerve) to see an examination of the facial nerve using some simple tests. The facial nerve controls the muscles of facial expression. Severe deficits will be obvious in watching someone use those muscles for normal control. One side of the face might not move like the other side. But directed tests, especially for contraction against resistance, require a formal testing of the muscles. The muscles of the upper and lower face need to be tested. The strength test in this video involves the patient squeezing her eyes shut and the examiner trying to pry her eyes open. Why does the examiner ask her to try a second time?Does the EMG represents the AP of the muscle or the AP reached to the muscle by the nerve ? * O AP of the muscle O AP of the nerve O BothLuke Marks is a 40-year-old male who was brought into ED by ambulance after he cameoff his motorcycle at 40km/hr after hitting a pothole in the road. The incident was calledin by a bystander, an off-duty lifeguard, who helped to stabilise his c-spine by supportinghis head (in a badly scratched helmet) and spoke to him until paramedics arrived.Handover from paramedics included: GCS 15, PERRLA, nil evidence of head injury despitea head strike, but Luke was unable to move his arms and legs and stated he had nilsensation in his legs and the sensation in his hands felt strange. The paramedics safelyremoved his helmet and safely secured a hard collar around his neck before transportinghim to hospital. Luke reported pain of 8/10 in his cervical spine but nowhere else. His vitalsigns were as follows: RR 22, SpO2 98% RA, HR 59bpm, BP 125/63 mmHg, Temp 35.7degrees.Paramedics administered 8mg IV ondansetron, 5mg s/c morphine and 250ml of NaCl(0.99%) en route.Luke has no significant medical…
- ans these complete fast pleassThe disease poliomyelitis (po′le-o-mi′˘e-li′tis) destroys motor neurons, causingloss of muscle function and even flaccid paralysis. Some patients recoverbecause axon branches form from the remaining motor neurons. Thesebranches innervate the paralyzed muscle fibers to produce motor unitswith many more muscle fibers than usual. How does this reinnervation ofmuscle fibers affect the degree of muscle control in a person who hasrecovered from poliomyelitis?The EMG is a recording of: * The action potentials of the motor nerves supplying the muscle fibers. The action potentials of the innervated muscle fibers. The contractions of the innervated muscle fibers O The action potential of the pacemaker cells O The electrical activity in the sarcoplasmic reticulum
- This patient was given potassium ions intravenously and regained normal muscle functioning in a very short period of time. Which of the following reason/s explains why repolarization of the muscle membrane returned to normal after the potassium infusion? O the potassium ions that were infused into body fluids remained in the ECF and helped open potassium channels O the potassium ions that were infused into body fluids moved into the ICF and diffused out during repolarization at a normal rate O the potassium ions that were infused into body fluids moved into the ICF and eliminated the state of hyperpolarization that was present O b and cThe group la afferents from intrafusal fibers are rapidly adapting and show low firing during the dynamic phase and increased firing while the stretch is maintained increased firing during the dynamic phase that is maintained while the stretch is maintained increased firing during the dynamic phase and reduced firing while stretch is maintained constant firing during the dynamic phase and while the stretch is maintainedView the University of Michigan WebScope at http://virtualslides.med.umich.edu/Histology/Basic%20Tissues/ Nervous%20Tissue/068_HISTO_40X.svs/view.apml (http://openstaxcollege.org/l/nervetrunk) to explore the tissue sample in greater detail. With what structures in a skeletal muscle are the endoneurium, perineurium, and epineurium comparable?
- 5. Identify the structures in this diagram of a muscle fiber Describe the function of each structure. 8) 4 9) Modifed by C Seiwert from original by Shaleta madepn Original uploadr was.ermyempat enwkipediaruti werk Abduramanii2 tulk) - Skeital muscda.ont. Pubfic Damain httn/commans.wikimedortwhdechaPeurid-10M Number Name Function 1 3. 4 6. 7 8 00 000 00 2.Define synchondrosis; pl. synchondroses27. Which of the following seutences is NOI curreet? I Myotibroblast is a connective tissse cell that contuns propemes of sanooth muscle celle III Ounonin is the eall mevement of salts fomaegian af higher cancentration to a repion of lauer couccutrutsen darongh a pertially permcalble ueubnae IV. chrcuos uf circalating RBCa nE cuained in the sucleus v. Catctiol (acuve form of vataman D) elevates blood Ca" by actung ca atestne, kadaeys and stiulate osteoblant setivity
