Fig. 8.1 Non-caseating granulomatous myositis . Muscle cross sections stained with hematoxylin & eosin (HE) show several endomysial and perimysial granulomas (red arrows) consisting of multinucleated giant cells (green arrow)…
Fig. 4.1 (a) HE stain shows a rare atrophic fiber (arrow) but no myofiber necrosis or inflammation. (b) ATPase pH 9.4 stain shows normal fiber type distribution with no vacuolar…
Initially there are N molecules, all at starting position 0. For any particular molecule (which we tag with a label i ), regardless of where the molecule is, it can…
Exponents Definition of exponentiation Multiplying the number 3 by itself four times gives <SPAN role=presentation tabIndex=0 id=MathJax-Element-1-Frame class=MathJax style="POSITION: relative" data-mathml='3×3×3×3= 81′>3×3×3×3= 813×3×3×3= 81 3×3×3×3= 81 which can be written…
Chapter 2 1. The relationship between the distance and time of diffusion is d ; that is, the distance diffused is proportional to the square root of time (e.g., for…
Cell membranes are modeled with electrical circuits The plasma membrane can be modeled as an electrical circuit. Fig. AppD.1 A is a schematic view of the structure of a biological…
Objectives 1. Explain how a skeletal muscle twitch and a tetanus are generated. 2. Describe how muscle contractile force can be varied. 3. Describe the mechanical properties of muscle that…
1. Which of the following statements about diffusion is FALSE? a. Molecules diffuse from regions of high concentration to regions of low concentration. b. Diffusion flux ( J ) is…
Objectives 1. Compare and contrast the mechanisms of excitation-contraction coupling in skeletal, cardiac, and smooth muscle cells. 2. For skeletal muscle, describe: a. How movement of a voltage sensor couples…
Objectives 1. List the common principles that apply to all molecular motors: myosin, kinesin, and dynein. 2. Describe the structure of a skeletal muscle cell and the organization of its…
