Transmission of a nerve impulse along an axon. A nerve cell is like a receiver, transmitter and transmission line with the task of passing a signal along from its dendrites to the axon terminal bundle. The stimulus triggers an action potential in the cell membrane
From Wikipedia, the free encyclopedia. Human body cavities: Dorsal body cavity is to the left. The dorsal body cavity is located along the dorsal (posterior) surface of the human body, where it is subdivided into the cranial cavity housing the brain and the spinal cavity housing the spinal cord.The two cavities are continuous with one another.rom Wikipedia, the free encyclopedia. Human body cavities: Dorsal body cavity is to the left. The dorsal body cavity is located along the dorsal (posterior) surface of the human body, where it is subdivided into the cranial cavity housing the brain and the spinal cavity housing the spinal cord.
The cavities include: 1  Dorsal body cavity. 2  cranial cavity, enclosed by the skull and contains the brain. 3  spinal canal, enclosed by the spine and contains the spinal cord.4  Ventral body cavity.ogether the cranial cavity and vertebral cavity can be referred to as the dorsal body cavity. In the posterior (dorsal) cavity, the cranial cavity houses the brain, and the spinal cavity (or vertebral cavity) encloses the spinal cord.