The difference between injection and infusion is the injection is completed with a syringe. The infusion is accomplished through an IV.
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A bolus injection is a single, rapid administration of a medication or fluid directly into the bloodstream. On the other hand, a bolus infusion involves administering a larger volume of medication or fluid over a short period, usually within minutes, to achieve a desired therapeutic effect. In summary, bolus injection is quick and immediate, while bolus infusion is more gradual but still delivered rapidly.
A bolus is a round mass of food formed in the mouth during the process of chewing and ready to be swallowed, whereas chyme is a semi-fluid mass of partly digested food that moves from the stomach to the small intestine for further digestion and nutrient absorption. Chyme is created by mixing food with stomach acids and digestive enzymes.
A soft mass of chemical chewed food ready to be swallowed is called a bolus. The bolus is formed in the mouth during the process of chewing and mixing food with saliva to aid in swallowing and digestion.
A bolus is a compact mass of chewed food mixed with saliva that is ready to be swallowed. It forms in your mouth during the chewing process before being pushed down the esophagus and into the stomach for digestion.
Chyme is formed in the stomach through the mixing of partially digested food with stomach acid and digestive enzymes. This semi-liquid mixture then passes into the small intestine for further digestion and absorption of nutrients.
Sensory stimulation in the mouth triggers salivary glands. Salivary glands produce saliva. Saliva mixes with food during chewing. Salivary enzymes begin breaking down food. Muscles in the mouth and cheeks help mix the saliva and food. The saliva-coated food (now called a bolus) is ready to be swallowed.