The arch   of the aorta passes upwards from the sternal angle  behind the manubrium to arch backwards and to the left over  the left lung ...

This is found in the heart. It consists of short, branched cylindrical fibres joined end to end. The adherent ends of adjacent fibres...

The vagus nerve The right vagus enters the thorax posterolateral to the right  brachiocephalic artery and descends lateral to the trachea ...

This tissues are capable of excitability and conductivity. It consists of excitable cells   and supporting cells,which in the centr...

Lymph consists of cells, mainly lymphocytes, and plasma. The lymphatic system collects tissue fluid and conveys it to the bloodstre...

GI tract has two types of nerve supply: Intrinsic nerve supply Extrinsic nerve supply. Intrinsic nerve supply Int...

The autonomic nerve supply of the thoracic viscera is via the  cardiac, pulmonary and oesophageal plexuses, which each  receive sympathetic ...

The pleura is a fibroelastic serous membrane lined by squamous  epithelium forming a sac on each side of the chest. Each  pleural sac is a c...

            Digestion is defined as the process by which food is  broken down into simple chemical substances that can be absorbed and ...

The cardiovascular system comprises the heart and blood vessels, arteries , veins , capillaries and sinusoids . The arteries and vei...