Cardiovascular system

Structural differences between blood vessels

Heart anatomy

Arteries, capillaries, and veins

Capillary are the smallest form of blood vessels and they are what forms the connection vessels that carry out the blood.

The superior vena cava is a major large vein carry out oxygenated blood into the heart

2 Major arteries in the heart are the 2 coronary arteries. The right one ventricle and SL and AV nodes. The left coronary artery suplies

The inferior vena cava major large vein that carry oxygenated blood toward lower exrtemedy of the heart.

The 4 heart chambers

The 4 chambers include the right atrium and left atrium and the right and left ventricles. All the chambers are eventually filled with blood and create a blood flow.

2 veins the include the superior and inferior vena. One carry's blood to the upper extremity.

Layers of the heart

Pericardium layers: 1. Parental layer the layer lines the internal surface of fibrous pericardium and cosints of serousal liining.

Disorders of cardiovascular system

Hypertension is a disorder is a disorder that involves low blood pressure below 90/60 mm and it is associated a lack cardio vascular illnesss

Varicose veins are dilated and painful veins that are due to incompetent valves.

Edema due to an increase in outward pressure or inward pressure.

  1. The visceral is on the external surfaces of the heart and is composed.

Pericardium visceral of serous pericardium form that forms the outer surface of the heart.

Myocardium are circular spinal bundles of contractile caridal muscles cells.

Endocardium inner most layer is contentious with linning of blood vessels

Tunica intima is the inner most layer and is in contact with blood.

Tunica Media is the middle layer composed of smooth muscles and sheets of elastin.

Tunica externa is the outermost layer of the wall and is composed mostly of loose collagen fibers that reinforce wall.

Blood flow through heart and body

It consists of the hart and body consists of atrium, vertrilces, valves, arteries, veins