In fact, someone began ringing the church bells which usually signified a fire. The sentry called for help, setting up the clash which we now call the Boston Massacre. A group of soldiers led by Captain Thomas Preston came to the rescue of the lone sentry. Captain Preston and his detachment of seven or eight men were quickly surrounded. All attempts to calm the crowd proved useless. At this point, the accounts of the event vary drastically.
chief cells - One of the two glandular epithelial cell types located in the basal half of gastric glands; they synthesize and secrete pepsinogen, the inactive precursor to the proteolytic enzyme pepsin; they appear smaller and with a more darkly staining granular cytoplasm than the neighboring parietal cells.
Pineal gland. Pineal gland or epiphysis (in red in back of the brain). The pineal gland, also known as the pineal body, conarium or epiphysis cerebri, is a small endocrine gland in the vertebrate brain. The shape of the gland resembles a pine cone, hence its name. The pineal gland is located in the epithalamus, near the center of the brain, between the two hemispheres, tucked in a groove where the two halves of the thalamus join. The pineal gland produces melatonin, a serotonin derived hormone which modulates sleep patterns in both circadian and seasonal cycles.