Answer:
In chronic hypertension the baroreceptors get used to high blood pressure and does not respond effeciently.
Explanation:
Hypertension is the condition when blood pressure usually remains higher than normal. The systolic higher blood pressure is considered high above from 139 (mmHg) and diastolic is considered as above from 89 (mmHg).
The condition is considered to be chronic when it affects vital organs such as lung and hurt. There are several stimuli to which brain response to maintain normal blood pressure. Most important and fast of these is baroreceptors present in blood vessels that detect the change in blood pressure and signal to brain for proper response such as dilating the blood vessels in case of high blood pressure.
In coronary hypertension the walls of blood vessels become stiffer due to several factors such as smoking, stress and ageing. The high blood pressure produces tension in the wall of artery which is detected by baroreceptor. In coronary hypertension these barorecepetors get used to higher blood pressure thus does not response to it properly. So blood pressure remains high.
Answer:
Subpolar low. Subpolar lows: semi-permanent cyclone where surface midlatitude southwesterlies converge with the polar northeasterlies. Subpolar lows, the Aleutian low over the North Pacific Ocean and the Icelandic low over the North Atlantic , are well-developed in winter, but weaken or disappear in summer.
The answer is responsiveness
This is your answer I hope this answers your question and that you have amice rest of your Sunday: Cardiac muscle is an exception among involuntary muscles, which are characteristically smooth. Its contractile fibers resemble those of skeletal muscle but are only one third as large in diameter, are richer in sarcoplasm, and contain centrally located instead of peripheral nuclei.
