The platysma muscle is a thin, subcutaneous, muscular sheet lying under the skin of the neck. It is a paired muscle th…

The gall bladder is a sac-like reservoir for the bile secreted by the liver , below which it is located. It is an elon…

The lobules of liver constitute the histologic and fundamental units of this glandular organ. Polygonal in shape, each…

The biliary ducts are a series of pipe-like conduits which carry the hepatic bile from the liver and the gall bladder …

The orbital fissures and foramina are the round and longitudinal (cleft-like) openings found in the bony structure of …

The hypothalamus is the portion of the diencephalon that forms the walls and floor of the third ventricle. Located at …

The efferent connections of reticular formation are carried out by both ascending and descending long axons that arise…

The Raphe nuclei are constellations of neurons lying along the median plane of the brainstem (medulla oblongata, pons …

The reticular formation is a system of grey longitudinal nuclei made up of nerve cells, lying in the central portions …

The midbrain , or mesencephalon , is the first portion of the brainstem , which is located below the diencephalon, at t…

The brainstem is the lower portion of the brain. It is elongated like a stem and lies vertically below the cerebrum (t…

The medulla oblongata is a vital structure of the central nervous system, which lies at the base of the encephalon (br…

The pons varolii is a rounded anatomical structure of the central nervous system, lying at the base of the brain. Bein…

The basal ganglia are a group of subcortical structures located at the base of the brain in each cerebral hemisphere .…

The hippocampus is a C-shaped structure of the human brain. It is located deep within the temporal lobe, being part of…

The allocortex is the most primitive part of the cerebrum. It is located on the inferior surface of the cerebral corte…

Also known as insula , the insular cortex is the part of the human cerebral cortex which is buried deep in the Sylvian…

The muscles of thenar eminence are a group of four short muscles located on the lateral aspect of palm of human hand, …

The flexor digitorum sublimis is one of the nineteen muscles of the forearm, and it belongs to the second layer of mus…

The opponens pollicis is a short muscle of the ball of thumb, on the radial side of palm. It is shaped like a thin tri…