Which of the following marks the boundaries of a sarcomere?
A) Z discs B) M lines C) H bands D) A bands E) I bands
A
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The palm of the hand is formed by the ________ bones.
Fill in the blank(s) with the appropriate word(s).
Developing sperm cells are protected by a blood-testis barrier formed by
A. connective tissue septa. B. interstitial spaces. C. Leydig cells. D. sustentacular cells. E. leukocytes.
In quiet breathing,
A) inspiration and expiration involve muscular contractions. B) inspiration is passive and expiration involves muscular contractions. C) inspiration involves muscular contractions and expiration is passive. D) inspiration and expiration are both passive processes. E) only the diaphragm is active during inhalation.
Bacteria on a splinter in your shoulder would be filtered by lymph nodes in the ________ region.
A. inguinal B. axillary C. cervical D. thoracic E. supratrochlear