The vascular and lymphatic system
transport absorption
to allow nutrient to enter for sustaining the cell; or to prevent bugs to enter
The food we eat is broken down into individual, microscopic nutrient molecules which enter the cell.
Local hormones become active without first entering the bloodstream. They act locally on the same cell that secreted them or on neighboring cells.Circulating hormones enter the bloodstream to be transported to their target cells.
Steroid Hormones only enter the bloodstream by diffusion. If you are a student taking anatomy/phyiso 2 and refering to this question: All steroid hormones are derived from (cholesterol). Which steroid hormone is produced is determined by the (enzymes) present in the cell. The common precursor molecule for all steroid hormones is (pregnenolone). Steroid hormones enter the blood stream by (diffusion) and (do) require a carrier. The rate of secretion of steroid hormones is (slower) then catecholemines because steroid hormones are not (stored). Hope that helps-
A white blood cell or WBC helps the immune system, by fighting infections disease or germs that enter the body's bloodstream. They use antibodies to terminate them.
Yes, but only to be absorbed in the liver and put through the Kreb's cycle of energy production. In general, acetic acid is treated as an input for the aerobic respiration cycle and does not travel in the systemic bloodstream as a nutrient for other tissues.
The squeeze thng
yes
An embolus will form in the bloodstream when a foreign substance enters.
Through the alveoli in your lungs.
depends on how you do it with a needle or snorting it
First blank on the first question is Stomach, and second blank is Bloodstream.
Vitamins that are water- soluble directly enter the bloodstream. Examples of these vitamins are B vitamins, biotin, pantothenic acid, folate and vitamin C.
Mainly in Small intestine.
Digestion and absorption by osmosis
The Nasal Cavity
intravenously / injection