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24 Sep 2018

I believe that I may have torn the meniscus in my knee.

a) what sort of problems would that cause? Consider both long and short term issues.

b) Name a test that a doctor could use to diagnose it.

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Elin Hessel
Elin HesselLv2
26 Sep 2018

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Related questions

Micro in the Clinic

Scraped Knee and Loss of a Leg?

Arjun is an active 15-year-old high school student; he plays soccer, runs track, and volunteers at his local food bank every week. A couple of days ago, while skateboarding, he scraped his knee pretty badly. He didn’t tell his mom because he knew that she would lecture him about being careful, and he was worried that she wouldn’t let him go back to the skate park. He washed his knee with soap and water well when he got home and didn’t think more about it.

The next morning, Arjun’s knee is stiff, swollen, and quite red. He washes it again when he takes a shower, and then he heads to school. Later in the afternoon, Arjun realizes that his knee is really sore, and he feels hot. He shows up for soccer practice, but his coach tells him that because he has a fever, he should go home and have his mom take him to the doctor to look at his knee.

The doctor examines Arjun’s knee and tells him that the wound is infected. The doctor is concerned by the rapid progression of the infection and Arjun’s fever. He admits Arjun to the hospital and orders an intravenous course of antibiotics. After two days of treatment, his knee actually looks worse; the infection is spreading to surrounding tissues. Arjun’s mom is very worried and anxious for the doctor to visit in the afternoon.

1.What do you think? Is there cause for Arjun’s mom to be worried?

2.What potential virulence factors may be associated with the microbes causing Arjun’s infection? Specifically what types of microbe (Gram + or Gram -) leads to fever?

3.Could there be any potential complications arising from infection with these microbes? Please explain.

Micro in the Clinic Scraped Knee and Loss of a Leg? Arjun is an active 15-year-old high school student; he plays soccer, runs track, and volunteers at his local food bank every week. A couple of days ago, while skateboarding, he scraped his knee pretty badly. He didn’t tell his mom because he knew that she would lecture him about being careful, and he was worried that she wouldn’t let him go back to the skate park. He washed his knee with soap and water well when he got home and didn’t think more about it. The next morning, Arjun’s knee is stiff, swollen, and quite red. He washes it again when he takes a shower, and then he heads to school. Later in the afternoon, Arjun realizes that his knee is really sore, and he feels hot. He shows up for soccer practice, but his coach tells him that because he has a fever, he should go home and have his mom take him to the doctor to look at his knee. The doctor examines Arjun’s knee and tells him that the wound is infected. The doctor is concerned by the rapid progression of the infection and Arjun’s fever. He admits Arjun to the hospital and orders an intravenous course of antibiotics. After two days of treatment, his knee actually looks worse; the infection is spreading to surrounding tissues. Arjun’s mom is very worried and anxious for the doctor to visit in the afternoon. 1.What do you think? Is there cause for Arjun’s mom to be worried? 2.What potential virulence factors may be associated with the microbes causing Arjun’s infection? Specifically what types of microbe (Gram + or Gram -) leads to fever? 3.Could there be any potential complications arising from infection with these microbes? Please explain.

Answer the following and provide a brief/short explanation of each:

A. Draw a simple diagram to show the neural circuit responsible for the observation that shining a light into your left eye results in constriction of the ipsilateral pupil. Be sure to include and label the following neurone types: interneurone, parasympathetic preganglionic neurone, parasympathetic postganglionic neurone, and sensory neurone.

B. If an axon had a conduction velocity of 115 m.sec-1, what 2 structural features would it have if it was viewed using a transmission electron microscope?

C. If an axon had a conduction velocity of 115 m.sec-1, how long would it take for an action potential to travel along this axon if it was 1520 mm long? Show working.

D. i) How many neurones are involved in a knee jerk reflex response at this monosynaptic reflex arc?

ii) Name the types of neurones involved at (i).

iii) What is the name of the specialised muscle fibre involved in detecting the muscle stretch? Hint: Only consider innervation associated with the quadriceps muscle and the major neurones involved in the process.

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