Answer:
Autonomic regulation of heart is via two reflex centers that are found in medulla oblongata
Explanation:
Medulla oblongata contain long stem that makes the upper part of brain case and this is a cone shaped structure which is responsible for autonomic regulation like controlling heart rate,vomiting,respiration,breathing etc.
The heart rate is controlled by autonomic nervous system that are mainly sympathetic and parasympathetic nervous system that releases hormones like catecholamine (epinephrine and non epinephrine) which helps in controlling the heart rate.
Medulla oblongata mainly connects the brain with the spinal cord that are responsible for responsible for the autonomic functions which contain -
Controlling the ventilation via signalling system regulated by chemo receptors which detects change in acidity of the blood.
Acts on cardiovascular centers.
Controlling the reflex centers like vomiting,coughing,sneezing,swallowing etc.
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The outer core of the earth is the only part of the earth that is made up of liquid.
<h3>What is the earth core?</h3>
The earth core is the center part of the earth that is the main source of generation of the earth's magnetic field.
There are different layers of the earth core which includes the outer layer.
The outer layer of the earth is 70 kilometres (3.1–43.5 mi) in depth.
This outer layer is the third layer of the earth and is made up of liquid.
Learn more about earth planet here:
brainly.com/question/25624188
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