APPLIED RADIOLOGICAL ANATOMY

ANATOMY

CHEST AND CARDIOVASCULAR

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which option is a RESPONSE to exercise?
A
Anticipatory Rise
B
Cardiac Hypertrophy
C
Decreased Resting Heart Rate
D
Capillarisation
Explanation: 

Detailed explanation-1: -The anticipatory rise is the mind’s response to the body’s need to prepare for exercise. Subconsciously, the body knows it is about to exercise and therefore the brain sends several signals in the form of neurotransmitters (e.g. noradrenaline) and hormones (e.g. adrenaline) to the heart.

Detailed explanation-2: -It results from an increase in activity of the sympathetic nervous system causing the adrenal glands to release adrenaline and noradrenaline into the blood stream.

Detailed explanation-3: -As exercise anticipation, by definition, minimizes the role of movement‐related afferent input from the muscles, central commands might be responsible for the cardio‐respiratory coupling changes during the anticipation phase.

Detailed explanation-4: -Once exercise begins, the sympathetic nervous system is activated and the heart rate rises quickly. Heart rate also rises by simply thinking about exercise, which is referred to as anticipatory heart rate response. The parasympathetic division helps to slow down heart rate and respiration.

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