Which of the following is likely during vigorous exercise?

1. Which of the following is likely during vigorous exercise? (1 point) (a) Blood will be diverted to the digestive organs (b) The skin will be cold and clammy (c) Capillaries of the active muscles will be engorged with blood (d) Blood flow to the kidneys increases 2. Which one of the following statements correctly defines the term cardiac output? (1 poin (a) Heart rate stroke volume cardiac output (b) Cardiac output-heart rate-stroke volume Cardine output heart rate x stroke volume dy Stroke volume x vital capacity - cardiac output 3. The ECG (electrocardiogram) is a graphic record of (1 point) (a) The hearts activity (b) Brain activity A measure of cardiac output d) Renal function 4. What ECG wave represents ventricular repolarization? (1 point) (a) U wave (b)P wave (c) Q wave aT wave 5. Which of the following statements best describes homeostasis? (1 point) (a) Keeping the body in a fixed and unaltered state (b) Dynamic equilibrium (c) Maintaining a near-constant internal environment (d) Altering the external environment to accommodate the bodys need 6. When the environmental temperature increases moderately, what happens to the bl skin? (1 point) (a) It decreases because the local thermo-receptors in the skin sense an increar temperature (b) It increases because the sweat glands release vasodilators Olt increases as part of the body temperature regulatory mechanisms (d) It increases as the metabolic needs of the skin tissue increases Which of the following describes the blood vessels, sweat glands, and tempe period of exercise? (1 point) (a) Blood vessels-constricted; Sweat glands-inactive, Skin temperature (b) Blood vessels-constricted: Sweat lands-inactive; Skim temperature (e) Blood vessels-constricted: Sweat glands-active; Skin temperature- (d) Blood vessels-dilated; Sweat glands-active; Skin temperature-hig hich response to over-calling does not involve muscle contraction? (a) Blood vessels narrowing (b) Hairs standing up e) Shivering D Reduced sweating

1. Which regarding the after is probably during strenuous workout? (1 point) (a) bloodstream is redirected into digestion body organs (b) your skin is cool and clammy (c) capillary vessel regarding the energetic muscle tissue is engorged with bloodstream (d) the flow of blood into kidneys increases 2. which regarding the after statements properly describes the word cardiac result? (1 poin (a) heartbeat stroke amount cardiac result (b) Cardiac output-heart rate-stroke amount Cardine result heartrate x swing amount dy Stroke amount x important capability – cardiac result 3. The ECG (electrocardiogram) is a graphic record of (1 point) (a) one’s heart’s task (b) mind task A measure of cardiac result d) Renal purpose 4. just what ECG revolution signifies ventricular repolarization? (1 point) (a) U revolution (b)P revolution (c) Q revolution in revolution 5. Which regarding the after statements well defines homeostasis? (1 point) (a) maintaining the human body in a set and unaltered condition (b) powerful balance (c) keeping a near-constant interior environment (d) Altering the exterior environment to support your body’s need 6. Once the ecological heat increases reasonably, what are the results into bl epidermis? (1 point) (a) It reduces considering that the neighborhood thermo-receptors into the epidermis feel an increar heat (b) it does increase considering that the perspiration glands discharge vasodilators Olt increases within the body’s temperature regulating components (d) it does increase as metabolic requirements of your skin structure increases Which regarding the after defines the arteries, perspiration glands, and tempe amount of workout? (1 point) (a) bloodstream vessels-constricted; perspiration glands-inactive, body heat (b) bloodstream vessels-constricted: perspiration lands-inactive; Skim heat (age) bloodstream vessels-constricted: perspiration glands-active; body heat- (d) bloodstream vessels-dilated; perspiration glands-active; body temperature-hig hich reaction to over-calling will not include muscle mass contraction? (a) bloodstream narrowing (b) Hairs standing age) Shivering D decreased perspiring

1. choice ‘c’.

One’s heart is an organ that pumps bloodstream during our
human anatomy.
The moved bloodstream is transported because of the arteries.
The oxygenated bloodstream is held from heart by arteries and
arterioles to various areas of the body.
The deoxygenated bloodstream is held from areas of the body into
heart by veins and venules.
Based on the system’s requirements, the way of bloodstream are
redirected making use of vasoconstriction and vasodilation.
During strenuous workout, since oxygenated bloodstream is many
needed because of the skeletal muscle tissue, the bloodstream is redirected from
digestive tract by vasoconstriction into muscle tissue in which
vasodilation does occur.

2. choice ‘ c’.

The cardiac pattern comes with systole and diastole.
In one single moment, 72 cardiac rounds take place. The length of time of
each cardiac pattern is 0.8 moments.
The amount of cardiac pattern each and every minute is known as heart
price.
The actual quantity of bloodstream moved during each cardiac pattern is known as
swing amount and it’s also about 70 mL.
Heartrate x swing amount = cardiac result. It really is about 5
litres in a healthy and balanced individual.

3. choice ‘a’.
4. choice ‘d’.
Explanation for 3 and 4 the following :

ECG describes electrocardiogram. It really is a graphical
representation regarding the heart’s electric task.
A normal ECG features peaks or waves.
The ‘P’ revolution signifies atrial depolarization or
excitation.
The ‘QRS’ complex signifies ventricular depolarization or
excitation.
The ‘T’ revolution signifies ventricular repolarization or come back to
regular condition.
The amount of ‘QRS’ complex provides individuals heartrate.

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