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The primary hormone responsible for physiological and stress responses such as increased heart rate is?
epinephrine
What is the difference between somatic anxiety and physiological arousal?
Somatic anxiety refers to the 'perception' of phsyiological arousal, i.e. do you view butterflies in your stomach and increased heart rate when playing sport as positive or negative? Phsyiological arousal does not include 'perception/interpretation' of the feelings. it is purely the butterflies in stomach, sweaty palms, or increased HR.
In the body what is the physiological cause of radii changes in blood vessels?
Vessel diameter can change quickly through casconconstruction or vasodilation. Most of the peripheral resistance occurs in arterioles (the small vessels of the arterial system). When these smooth muscles contract or relaz, peripheral resistance is either increased or decreased.Source: Modern Anatomy & Physiology by Ateegh Al-Arabi
How is the endocrine system responsible for your increased heart rate when you are scared?
Fear causes the release of adrenaline, also known as epinephrine, which has several physiological effects on the body including heart rate.
Name two factors that increase peripheral resistance?
Peripheral resistance can be increased by an increase in blood volume and the constricting of blood vessels.
What condition causes increased rigidity of peripheral blood vessels with age?
arteriosclerosis
In general Autonomic tone of peripheral blood vessels increase when?
sympathetic stimulation is increased.
Autonomic tone of peripheral blood vessels would be greatest when?
When sympathetic stimulation is increased.
What is the normal physiological response to increased intake of caffeine?
Thoughts of suicide and hallucinations.
How do you use the word physiological in a sentence?
It is entriely possible to use physiology in a sentence. I just have!
Which of the following factors would increase the amount of oxygen discharged by hemoglobin to peripheral tissues?
decreased pH, increased temperature or increased levels of CO2
How will blood peripheral resistance change as a result of increased hematocrit?
An increased hematocrit indicates a higher ratio of RBC's in the blood. Any increase in cellular elements, whether WBC's, RBC's or platelets, will act to essentially mechanically "thicken" the blood viscosity, sort of like using a heavier grade oil in your car. Increased blood viscosity will increase peripheral resistance, as it becomes harder for the heart to circulate the thicker blood, especially in the capillaries.
