Biology

Motor Cortex Definition Motor cortex is the region of the cerebral cortex influencing movements of the face, neck and trunk, and arm and leg. It…

Corpus Callosum Definition Corpus callosum is the transverse band of nerve fibers that connects the right and left cerebral hemispheres. It is also called callosal…

Brainstem Definition Brainstem is the part of the vertebrate brain located at the base of the brain and made up of the medulla oblongata, pons,…

Vertebral Artery Definition Vertebral artery is one of the main arteries at the base of the neck and is the first branch of the subclavian…

Auditory Cortex Definition Auditory cortex is the section of the brain that processes information received through hearing. It is also called auditory area. It is…

Lateral Sulcus Definition Lateral sulcus is one of the group of sulci and a most prominent brain section. It first arises around the 14th gestational…

Prefrontal Cortex Definition Prefrontal cortex (PFC) is the cerebral cortex which covers the front part of the frontal lobe. It is often called the ‘brain…

Cell Envelope Definition Cell envelope is a combination of the cell membrane, cell wall, and an outer membrane if it is present. Usually, this envelope…

Lipid Bilayer Definition Lipid bilayer is a two-layered arrangement of phosphate and lipid molecules that form a cell membrane, the hydrophobic lipid ends facing inward…

Acetylcholine Definition Acetylcholine is a substance that is released at the junction between neurons and skeletal muscle fibers, at the nerve endings of the parasympathetic…

Lipids Srtucture, Properties and Function Lipid – Lipids are biological molecules that are insoluble in water, but are soluble in non-polar solvents, meaning that they…

About Lipid Definition Lipids are any of a large group of organic compounds that are oily to the touch and insoluble in water. Lipids include…