1. The most important chemical regulator determining respiratory rate is 2. Boyl
ID: 3522707 • Letter: 1
Question
1. The most important chemical regulator determining respiratory rate is 2. Boyle's law states that volume is s. The site of gas exchange in the lungs is the . What chemical mediator initiates an inflammatory reaction? s. Lymphoid nodules in the intestines are called 6. What is the effect of the neurotransmitter acetylcholine (Ach) on the heart? 7. What is an antibody called when it enhances phagocytosis? s. What is the antibody involved in allergic responses? 9. What is the antibody involved in erythroblastosis fetalis? 1o. What are the cells that perform immunological surveillance against cancer cells called?Explanation / Answer
1) Carbon dioxide
2)Volume of gas is inversly proportional to its pressure
3) Alveoli
4) Histamine
5) Peyer's patch
6) When heart rate increase than normal then symathetic nervous system is stimulated which causes release of acetylcholine. This Acetylcholine decreases pacemaker rate by increasing potassium movement and decreasing calcium and sodium movement. The decrease in pacemaker rate decreases heart rate due to acetylcholine release.
7) Opsonin
8) Immunoglobulin E
9) Immunoglobulin G
10) NK cells
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