You have just received your flu vaccine in your deltoid muscle. explain all of the layers and structures the needle passed through, from impact to muscle.

The deltoid muscle is very common in the world of healthcare and is most generally used for vaccination of influenza flu. The deltoid muscle is a triangular and rounded muscle situated on the top of the shoulder and the uppermost part of the arm.  

The site for intramuscular injections in the deltoid muscle is the thickest and the central part of the muscle, that is, above the level of the armpit and about two to three fingerprints underneath the acromion process.  

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms