What does grey matter in the spinal cord contain?

The grey matter in the center of the cord contains interneurons and the cell bodies of motor neurons, axons, and dendrites. Projections of the grey matter (the “wings”) are called horns. Together, the grey horns and the grey commissure form the H-shaped grey matter.

What cells are found in the gray matter of the spinal cord?

The gray matter mainly contains the cell bodies of neurons and glia and is divided into four main columns: dorsal horn, intermediate column, lateral horn and ventral horn column.

What is the gray matter of the spinal cord divided into?

In transverse sections, the gray matter is conventionally divided into dorsal (posterior) lateral and ventral (anterior) “horns.” The neurons of the dorsal horns receive sensory information that enters the spinal cord via the dorsal roots of the spinal nerves.

What is gray matter of the spinal cord composed of quizlet?

-The gray matter of the spinal cord is shaped like the letter H or a butterfly; it consists of dendrites and cell bodies of neurons, unmyelinated axons, and neuroglia.

Which of the following is made up of gray matter?

The grey matter, in the center of the cord, is shaped like a butterfly and consists of cell bodies of interneurons and motor neurons, as well as neuroglia cells and unmyelinated axons. Hence, option (D) Spinal cord is the correct answer.

Where is grey matter located in the spinal cord quizlet?

Gray matter in the spinal cord is located in the center and shaped like an H or ‘butterfly’, it makes up the anterior horn, lateral horn (T1-L2 only), and posterior horn, and the grey commissure (meaning “a seam” it connects both sides of the H and surrounds a narrow central canal).

What are the 4 regions of the spinal cord?

The spinal cord and spine are divided into 4 regions from top to bottom: cervical, thoracic, lumbar, and sacral.

Is pia mater gray matter?

Gray Matter Is Organized into Layers The cerebral cortex lies beneath the pia mater and covers the surface of most of the brain, as viewed from the top. It contains many folds, or gyri, as shown in Figure 4.1. 5.

Which is absent in grey matter?

In the grey matter, these axons are mainly unmyelinated, meaning they are not covered by a whitish-colored, fatty protein called myelin. The grey matter serves to process information in the brain.

How many structures are included in grey matter?

The grey matter in the spinal cord is split into three grey columns: The anterior grey column contains motor neurons. These synapse with interneurons and the axons of cells that have travelled down the pyramidal tract. These cells are responsible for the movement of muscles.