Describe the structure of the cytoskeleton, and list its functions.
What will be an ideal response?
The cytoskeleton consists of actin microfilaments, intermediate filaments, and microtubules and forms a scaffold throughout the cytoplasm. An interesting feature is that some of the proteins are relatively fixed in position, whereas others can be rapidly assembled or disassembled as necessary. The functions include providing mechanical strength and shape, stabilizing position of organelles, intracellular transport system, functional linkage to other cells and to extracellular space, and cell-generated movements.
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Increased incidence of malignant tumor growth has been scientifically linked to stress in multiple studies.
a. true b. false
All of the following are symptoms of Cushing's syndrome EXCEPT ________.
A. upper body obesity B. round face C. easy bruising D. hypoglycemia
Secondary bronchi are also termed ________ bronchi.
A) tertiary B) lobar C) segmental D) lobular E) None of the answers are correct.
The lymphatic system plays a role in maintaining fluid balance within the body by
A. adding lymph to GI tract secretions. B. returning interstitial fluid to the plasma. C. transporting lymph from tissues to the liver. D. carrying excess fluid to the kidneys to be excreted. E. actively absorbing fluid from the blood.