GENERAL HISTOLOGY

EXCRETORY SYSTEM

EXCRETORY SYSTEM ALL QUESTIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Your heart beating faster because you are scared is an example of which of the following?
A
response from the nervous system
B
stimulus to the nervous system
C
response from the circulatory system
D
stimulus to the endocrine system
Explanation: 

Detailed explanation-1: -Stimulation by the sympathetic system nerves results in an increase of heart rate, as occurs during the “fight-or-flight” response.

Detailed explanation-2: -The sympathetic nervous system (SNS) releases the hormones (catecholamines-epinephrine and norepinephrine) to accelerate the heart rate. The parasympathetic nervous system (PNS) releases the hormone acetylcholine to slow the heart rate.

Detailed explanation-3: -EXAMPLES. Physiological changes induced by the sympathetic nervous system include accelerating the heart rate, widening bronchial passages, decreasing motility of the large intestine, dilating the pupils, and causing perspiration.

Detailed explanation-4: -Your sympathetic nervous system is best known for its role in responding to dangerous or stressful situations. In these situations, your sympathetic nervous system activates to speed up your heart rate, deliver more blood to areas of your body that need more oxygen or other responses to help your get out of danger.

Detailed explanation-5: -Function of the autonomic nervous system. The autonomic nervous system controls internal body processes such as the following: Blood pressure. Heart and breathing rates.

There is 1 question to complete.