The volume of the antrum is largest in a ________ follicle.
A. secondary
B. primordial
C. polar
D. mature
E. primary
Answer: D
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Prions are infectious proteins within cells that cause normal proteins to misfold and clump together. Prions can occur as a result of a mutation or ingestion, e.g., Mad Cow disease (eating infectious beef from an animal with the disease). Creutzfeldt-Jakob disease and scrapie are prion diseases in both animals and humans. The diseases are progressive, have no cure, and end in death. Using your chemistry knowledge, explain the devastating effects of these diseases.
What will be an ideal response?
Which of the following is not true of cardiac myocytes?
A. They are joined by intercalated discs. B. They have T tubules that admit extracellular calcium. C. Mitochondria make up about 2% of the cell volume. D. They are striated. E. They usually have one nucleus.
Muscle tension is produced internally within the ____
a. myosin molecules b. actin molecules c. T tubules d. sarcoplasmic reticulum e. sarcomeres
The muscle we develop when we do sit-ups is the ____
a. transversus abdominis b. external oblique c. rectus abdominis d. internal oblique