Gland Endocrine glands secrete substances that circulate through the blood stream. The glands secrete their products through basal lamina into the blood stream. Basil lamina typically can be seen a layer around the glands to which a million maybe more tiny blood vessels are attached. These glands often secrete hormones which play an important role in maintaining homeostasis. The pineal gland, thymus gland, pituitary gland, thyroid gland, and the two adrenal glands are all endocrine glands. Exocrine glands secrete their products through a duct onto an outer surface of the body, such as the skin or the gastrointestinal tract. Secretion is
The Brain of Colonel Barham on Mars. But the best candidate for the job, Col. Barham, is dying of an incurable ailment. It is decided to separate his brain from his body and keep it alive, with neural implants connecting it to visual and audio input/output for the mission. But without a body, the brain becomes extremely powerful and megalomaniacal. "Progress goes on. One experiment fails, but even out of failure valuable lessons are learned. A way will be found, someday, somehow. It always is." The Brain of Colonel Barham "The Brain of Colonel Barham" (original title: The Brain of Donald Duncan) is an episode