INTRODUCTION TO THE METAZOA 



85 



tissues into organs such as muscles and 

 nerve trunks. The tendons which unite mus- 

 cles to bones consist of connective tissue; 

 cartilage and bone are supporting connec- 



tive tissues. Cartilage is either clear (hya- 

 line) or contains fibers (fibrous). Bone is 

 a hard intercellular substance containing 

 much calcium and phosphorus. 



NERVOUS 



Simple 

 squamous 

 (surface view) 



VASCULAR 



Cuboidal 



Nonciliated Ciliated 

 columnar columnar 

 Vertical section 



Stratified 

 squamous 



Erythrocytes 

 CONNECTIVE 



Leucocytes ■ 



Tendon (fibrous) 

 MUSCULAR 



Bone 



Smooth 



Smooth muscle 



Columnar 

 epithelium 



Nervous 



Connective 



Vascular 



Squamous 

 epithelium 



Skeletal 



J 



WX9^ 



i<M^^^A 



Cartilage (hyaline) 



Cardiac 



One organ (as the 

 intestine) consists 

 of many tissues 



Figure 43. Types of tissue. 



