Cavernous Sinus

Area adjacent to the sphenoid sinus containing several vital nerves and blood vessels. A large channel of venous blood creating a “sinus” cavity bordered by the sphenoid bone and the temporal bone of the skull. The cavernous sinus is an important structure...

Cell

The basic living unit of body tissue. It contains a nucleus surrounded by cytoplasm and is enclosed by a membrane. Minute protoplasmic masses that make up organized tissue, consisting of a nucleus which is surrounded by protoplasm which contains the various organelles...

Central Nervous System (CNS)

Pertaining to the brain, cranial nerves and spinal cord. It does not include muscles or peripheral nerves. The central nervous system (CNS) is made up of the spinal cord and brain. The brain receives nerve impulses from the spinal cord and cranial nerves. The spinal...

Cerebrospinal Fluid (CSF)

The clear fluid made in the ventricular cavities of the brain that bathes the brain and spinal cord. It circulates through the ventricles and the subarachnoid space. The fluid that flows in and around the hollow spaces of the brain and spinal cord, and between two of...

Cerebrum

The largest area of the brain, the cerebrum occupies the uppermost part of the skull. It consists of two halves called hemispheres. Each half of the cerebrum is further divided into four lobes: frontal, temporal, parietal and occipital. The forebrain is the largest...