4. Tissues & Histology
Introduction to Nervous Tissue
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If a sensory nerve running from the hand to the spinal cord is severed, you will lose feeling in your hand. What statement best describes the reason for this?
Fill in the blanks: ____are the cells of nervous tissue that send and receive messages, and ____ are the supporting cells of nervous tissue. A(n)____carries a nerve impulse toward a neuron cell body, and a(n)____carries a nerve impulse away from a neuron cell body.
State whether each of the following describes epithelial, connective, muscle, or nervous tissue.
a. ____ECM is often the primary element.
b. ____Consists of excitable cells that are specialized for contraction.
c. ____Sheets of tightly packed cells with little ECM.
d. ____Makes up the majority of the brain and spinal cord.
e. ____Cells may be smooth or striated.
f. ____Binds, connects, supports, and transports substances throughout the body.