At rest in muscle cells, the em is not constant but shows seemingly random fluctuations that appear to be in units of about 0.5 mv. these are called miniature endplate potentials (mepp) and are due to the fusion of a single vesicle containing acetylcholine with the presynaptic nerve terminal membrane.
(a) if the muscle cell is 50 μm in diameter and 10cm long, and its specific capacitance is 1 μf/cm2, how much charge must flow for this 0.5mv change due to a single vesicle fusion event?
(b) if ena = +66mv and em = -85mv, and the mepp rises in 0.5 ms, what is the average conductance increase in the membrane due to the single fusion event? assume the current is all carried by na+.
(c) how many channels do you think open during the mepp? use 40 ps for the unitary conductance of the acetylcholine receptor.

Give the medical names for the bones described: collar bone shoulder blade wrist bones thigh bobe kneecap upper arm bone breast bone finger bones shin bone

An african american young adult is admitted to the emergency department in sickle cell crisis with a report of 10/10 pain. the patient is known to several of the nurses and physicians in the department who have labeled the patient as a “drug seeker”. initial discussion post: identify one (1) intervention that can be taken by the rn to reduce the stigma and improve management of acute and chronic pain associated with sickle cell disease. does the intervention apply only to the patient? does it apply only to the interprofessional team? does it apply to both the patient and the members of the interprofessional team? explain and support your answer.

Harold, a fifty-eight year old grocery store manager, had recently been waking up in the middle of the night with abdominal pain. this was happening several nights a week. he was also experiencing occasional discomfort in the middle of the afternoon. harold decided to schedule an appointment with his physician. the doctor listened as harold described his symptoms and then asked harold some questions. he noted that harold's appetite had suffered as a result of the pain he was experiencing and as a result of the fear that what he was eating may be responsible for the pain. otherwise, harold seemed fine. the doctor referred harold to a physician that specialized in internal medicine and had harold make an appointment for a procedure called an endoscopy. the endoscopy was performed at a hospital later that week. during the procedure, a long, thin tube was inserted into harold's mouth and directed into his digestive tract. the end of the tube was equipped with a light source and a small camera which allowed the doctor to observe the interior of harold's stomach. the endoscope was also equipped with a small claw-like structure that the doctor could use in order to obtain a small tissue sample from the lining of harold's stomach, if required. the endoscopy revealed that harold had a peptic ulcer. analysis of a tissue sample taken from the site showed that harold also had an infection that was caused by helicobacterpylori bacteria. the doctor who performed the endoscopy gave harold prescriptions for two different antibiotics and a medication that would decrease the secretion of stomach acid. the doctor also instructed harold to schedule an appointment for another endoscopy procedure in 6 months. 1. list the subjective findings in this case study. 2. what is an endoscopy? (2 points) what is a biopsy? 3. how was a biopsy performed on harold? 4. differentiate between gastric and duodenal ulcers by location. 5. what role does h. pylori play in the formation of peptic ulcers? 6. define occult and frank blood. (4 points) what is a guaiac test? 7. how can peptic ulcers cause bleeding? 8. why were antibiotics prescribed? 9. why would a medication that would decrease the secretion of stomach acid be beneficial?