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Cardiovascular System

Autonomic Regulation- Neural And Hormonal Regulation of The Heart

Heart rate regulation is primarily under the control of the cardiac control center located within the medulla oblongata of the brain. It receives sensory information about the level of blood pressure from baroreceptors located in the aortic arch and the carotid sinuses of the internal carotid arteries.

Pain and Reflex Pathways of The Heart

Pain Pathways The sensations of pain arising because of the ischemia of the heart go through the sympathetic fibres to reach the upper 5 thoracic spinal segments (T1-T5) via cervical andthoracic sympathetic ganglia and follow the usual somatosensory pathway to the central nervous system. The pain fibres

Blood Vessel Histology

Blood vessels are the part of circulatory system which functions to transfer blood all through the body. Blood vessels can be classified as arteries, capillaries and veins. Capillaries is 60,000 miles long. That is long enough to go around the world more than twice. All the blood

Action of the Heart – Cardiac Cycle

The heart is actually a double sided muscular pump. The right side pumps blood to the lungs and left side pumps blood to all the parts of the body. Every pump is created from an atrium and a ventricle. Cardiac Cycle The contraction of heart followed by

Vascular Segments

As blood exits the left ventricle, it passes progressively through the aorta, arteries, arterioles, capillaries, venules, veins, and vena cava before returning to the right atrium. These vascular segments have significant functional differences. Arteries And Arterioles An extensive network of arteries and arterioles branch off of the

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