What are the three muscle types shown in slide 2 (between cardiac, skeletal, and smooth)? Label A, B, and C, and explain the reasoning for why you labeled each image as such. a. Compare the muscle types. What are the similarities and differences between each muscle type?

5

Smooth muscle has actin/myosin, why is it not striated? (consider what striation can provided)

Draw a graph of the isometric force–length relationshipof striated muscle, indicating where maximal overlap betweenactin and myosin filaments occurs.

Assuming the ultrasound beam strikes the muscle layer at 90◦ , how wide will the fat muscle boundary appear in the ultrasound image?

1.Why is wavelenth the main limiting factor on limit of resoltuin in light microscopy? 2.Assuming that all other variables remain constant, explain why light of shorter wavelengths will produce a clearer image that light of longer wavelenths. 3. Why aren't the magnification of both ocular lenses of a binocular microscope used to calculate total magnification?

Select all correct answers (i.e. more than one answer may be correct). What is the advantage of having a muscle with a bipennate muscle fiber orientation rather than a longitudinal fiber orientation? Assume that the general muscle volume is held constant between orientation types. Obipennate muscle has a smaller physiological cross-sectional area Obipennate muscle has larger force-producing capabilities Obipennate muscle has a greater muscle shortening capability

Assume you are observing the diatom pictured in Figure 1 using the 10X lens in a compound light microscope. You move to the 40X lens and then again to the 100X lens by only rotating the turret (remember that the lenses are parfocal), without making any other adjustments to the microscope.          c) After making your adjustments, you notice that the midline of the diatom is in focus while the remainder is blurry. Explain, based on microscopy principles, why this has occurred Provide a description of the procedure to prepare an acidic stain of bacteria using Nigrosin as it would appear in the Methods section.

Let's say you placed the letter "e" slide on the microscope stage so that it is in the normal, correct orientation. You centered over the light source and under the objective. 1. How would it appear through the ocular lens after focusing? Describe what you would see. 100 in Click or tap here to enter text. Smaller 2. When you move the slide to the left with the stage controls, how does it appear to move through the ocular lens? Click or tap here to enter text.

What part of the microscope adjusts the amount of light projected onto the slide? Group of answer choices A. rheostat B. on/off switch C. iris D. course adjustment