Which of the following factors increase the h | vedclass

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(A) The heart rate is regulated by the autonomic nervous system and endocrine factors:$1$. Sympathetic nerve signals $(A)$ increase the heart rate.$2$

Vedclass · Accepted Answer

$A, C, E$

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(A) The heart rate is regulated by the autonomic nervous system and endocrine factors:$1$. Sympathetic nerve signals $(A)$ increase the heart rate.$2$. Parasympathetic nerve signals $(B)$ and the Vagus nerve $(D)$ decrease the heart rate.$3$. Adrenal medullary hormones like epinephrine and norepinephrine $(C)$ increase the heart rate.$4$. Thyroxine hormone $(E)$ increases the metabolic rate and heart rate.$5$. Acetylcholine $(F)$ is the neurotransmitter released by the parasympathetic system,which decreases the heart rate.Therefore,the factors that increase the heart rate are $A, C,$ and $E$.

Which of the following factors increase the heart rate?
$(a)$ Sympathetic nerve signals
$(b)$ Parasympathetic nerve signals
$(c)$ Adrenal medullary hormones
$(d)$ Vagus nerve
$(e)$ Thyroxine hormone
$(f)$ Acetylcholine

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Which of the following factors increase the heart rate?$(a)$ Sympathetic nerve signals$(b)$ Parasympathetic nerve signals$(c)$ Adrenal medullary hormones$(d)$ Vagus nerve$(e)$ Thyroxine hormone$(f)$ Acetylcholine