B is the correct answer i believe B is the correct answer i believe
Answer:
The correct answer is -Serotonin receptor agonists such as Imitrex are effective in the acute treatment of migraines.
Explanation:
Norika is experienced a headache with evident nausea and visual disturbances which suggests that she has symptoms of acute migraines, In acute migraines, the doctor advises getting serotonin receptor agonist injections as these activate receptors similarly serotonin do.
The correct answer is -Serotonin receptor agonists such as Imitrex are effective in the acute treatment of migraines.
Answer:
The correct answer will be option-A.
Explanation:
The cardiac cycle of the heart is divided into two phases: contraction (systole) and relaxation (diastole).
The atria and ventricles of the heart contract simultaneously in response to the impulse generated in the SA node. The contraction of the atria and ventricles push the blood or pumps the blood.
The atrial systole pumps blood to ventricles whereas the ventricular systole pumps blood to the body parts.
Thus, option-A is the correct answer.
Answer:
The correct answer is D.
Explanation:
Bordetella pertussis is a gram-negative coccobacillus that causes a disease called whooping cough.
The bacterium infests the patients by colonizing lung epithelial cells. To do so, it requires adhesins, called filamentous haemagglutinin, fimbriae and pertactin. Once the bacterium is attached to the lung epithelial cells, it produces a cytotoxin that prevents their cilia from moving.
Another virulent factor from B. pertussis is the pertussis toxin, which alters host immune system through the inhibition of phagocytes response to it.
