<span>Epinephrine is most likely to be released into the bloodstream in order to accelerate one's heartbeat. This usually occurs when one is in danger, thus, preparing the individual for a fight-or-flight response. This hormone is also most commonly known as adrenaline as it is secreted by the adrenal glands. </span>
Combustion<span>, </span><span>a </span>chemical reaction<span> between substances, usually including </span>oxygen<span> and usually accompanied by the generation of </span>heat<span> and </span>light<span> in the form of </span>flame<span>. </span>
In contrast to compact bone, spongy bones does not contain true Haversian systems( tiny tubes that form a network in bone and contain blood vessels) but consist of an irregular lattice of thin plates of bone called trabeculae.
The spaces between trabeculae are filled with marrow. The cells of the red marrow are responsible for producing blood. Within trabeculae lie lacunae which contain osteocytes.
Blood vessels from the periosteum penetrate through to the spongy bone, and osteocytes in the trabeculae are nourished directly from the blood circulating through the marrow cavities.
They are classified as Eukaryotic.
