What is Ectodermis?

What is Ectodermis?

1a : the outermost of the three primary germ layers of an embryo that is the source of various tissues and structures (such as the epidermis, the nervous system, and the eyes and ears) b : a tissue (such as neural tissue) derived from this germ layer.

Are there neuroglial cells in the nervous tissue?

Scattered around the neuron are many neuroglial cells, which in addition to neurons are the other type of cell in nervous tissue. Neurons are the electrical communication and circuit board cells of the body. The neuroglial cells do not generate or conduct nerve impulses, but they have important supportive roles for the neurons.

What are the histological components of the brain?

Histological Components: A. Supporting (non-neuronal) Cells— Glial cells provide support and protection for neurons and outnumber neurons 10:1. The CNS has three types and the PNS has one: 1. Astrocytes—star-shaped cells that play an active role in brain function by influencing the activity of neurons.

What makes up the gap between nerve cells?

The synapse is the gap between nerve cells, or between a nerve cell and its target. The signal is transmitted across the synapse by chemical compounds known as neurotransmitters. Neurons categorized as multipolar neurons have several dendrites and a single prominent axon.

What are the connective tissue of the nervous system?

Connective tissue proper of the nervous tissue which include: a. Meninges of the brain and spinal cord b. Connective tissue of the blood vessels of the nervous tissue. c. Connective tissue sheath of the peripheral nerves, which include (See Diagram 1.