The boundary between adjacent sarcomeres is the
A. I band
B. H zone
C. M line
D. Z line (disc)
E. A band
Answer: D
You might also like to view...
What would be true of the newly formed sex cells in a person possessing a mutation that completely prevents crossover?
A. The new cells would contain abnormal chromosome numbers because crossing over ensures proper division. B. The new cells would have more genetic variability because crossing over limits transmission of maternal and paternal genes. C. The new cells would have less genetic variability because whole chromosomes would only be entirely maternal or paternal. D. The new cells would have less genetic variability because crossing over contributes to proper chromosome shape, so parts of the chromosome would be non-functional.
Answer the following statements true (T) or false (F)
1. Respiratory acidosis results when lungs are obstructed and gas exchange is inefficient. 2. Prolonged hyperventilation can cause alkalosis. 3. Thirst is always a reliable indicator of body water need. 4. Blood acidity results in depression of the CNS, whereas blood alkalosis results in overexcitement of the CNS. 5. It is necessary for the testes to be kept below body temperature.
Which muscle(s) of the pelvic floor is/are responsible for erection of the penis and clitoris?
A. Ischiocavernosus only B. Superficial transverse perineal muscle and coccygeus C. Coccygeus only D. Bulbospongiosus only E. Bulbospongiosus and ischiocavernosus
Describe the three types of protein fibers common to the extracellular matrix of tissues
What will be an ideal response?