The parts of the brain include the cerebrum, the cerebellum, the brain stem, and the pituitary gland. The brain structure is protected by the skull, which is composed of the cranium and the bones of the face. Layers of tissue between the cranium and brain cover the brain anatomy, which ...
Anatomy The brain stem is a tube-shaped mass of nervous tissue a little over 3 inches (8 cm) long. It is located at the base of the brain, superior to the spinal cord and inferior to the cerebrum. As the brain stem ascends from the spinal cord, it widens and becomes more complex ...
The central nervous system (CNS) as a whole consists of the brain and spinal cord (SC). Commonly, the mistake is made to refer to the cerebrum as the brain independently of the brain stem, but they are not considered mutually exclusive in general anatomical terms.marknmalinowski...
Here we present a neuronal wiring diagram of a whole brain containing 5 × 107 chemical synapses7 between 139,255 neurons reconstructed from an adult female Drosophila melanogaster8,9. The resource also incorporates annotations of cell classes and types, nerves, hemilineages and predictions of ...
Health & MedicineAnatomy & Physiology neuron; conduction of the action potentialIn a myelinated axon, the myelin sheath prevents the local current (small black arrows) from flowing across the membrane. This forces the current to travel down the nerve fibre to the unmyelinated nodes of Ranvier, ...
Learn about the brain, sometimes considered the body's computer. Discover the three main parts of the brain which are the cerebrum, the cerebellum, and the brain stem, and examine their functions. An Intro to Your Brain Many people own a computer and use it every day. Computers are great...
Brain cell anatomy The brain is composed of billions of cells that use chemicals and electricity to communicate between themselves and the rest of the body. There are two major types of cells, neurons and glial cells; there are subtypes of these cells. ...
1.(Anatomy) the anterior portion of the brain of vertebrates, consisting of two lateral hemispheres joined by a thick band of fibres: the dominant part of the brain in man, associated with intellectual function, emotion, and personality. Seetelencephalon ...
anatomy Print Also known as: 10th cranial nerve, X cranial nerve Written and fact-checked by The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or ...
Anatomy of the human brain The largest part of the human brain is the cerebrum, which is divided into two hemispheres, according to theMayfield Clinic. Each hemisphere consists of four lobes: the frontal, parietal, temporal and occipital. The rippled surface of the cerebrum is called the cortex...