Chapter summary

One diagram holds the plant half of this chapter, and six sentences hold the rest.

Plant tissues, classified

The chapter in six points

• A group of cells with a common origin, shaped to carry out a definite function, contained within a living body, is called a tissue.
• The vertebrate body is constructed from four tissue types: epithelial, connective, muscle and nervous.
• Epithelial tissue, while lining all the surfaces of vertebrates, carries out absorption, secretion, filtration and the reception of stimuli as well as its protective function.
• Connective tissue, consisting of several kinds of cell, of fibres and of a large matrix, binds organs and tissues to one another and provides support.
• Three muscle tissue types — smooth, skeletal and cardiac — are present in the human body. The contractions and relaxations occurring in them produce the various movements of the body.
• Impulse transmission is carried out by nervous tissue, and there are three main neuron types: sensory, motor and inter neurons.

Terms introduced in this chapter