While collective impact has a track record of success against a range of social and environmental issues, not all... This framework offers a guide to help your group of stakeholders assess whether or not collective impact is the right approach to address a specific social problem in your community....
Histology (Cells) of the Nervous System â¢ 2 major categories of cells are found in the nervous system:â¢ 1. Nerve cells (neurons) âcarry impulses and are electrically excitable.â¢ 2. Glial cells (neuroglia)- do not carry impulses, not electrically excitable.â¢ We will discuss glial cells first.â¢ Glial Cells (Neuroglia): These cells do not carry electrical impulses as they are not electrically excitable. There are several types of glial cells with a number of different functions.
Transmit electrical impulses, basic unit of nervous system. Carry impulses from brain and spinal cord to muscles and glands. Motor neuron receives impulse from the interneuron. It carries the impulse to the effector and releases a chemical that causes a muscle to contract/a gland to secrete. Sensory neurons Carry impulses from the sense organs to the spinal cord and brain.