MORPHOLOGY OF ANIMALS 



Fig. 7. Section of human skin; ep epidermis, sc stratum corneum, sg stratum granulosum, 

 sm stratum mucosum, mp Malpighian layer, all of epidermis ; h hair, hf hair follicle, kb 

 hair bulb, og oil gland, m muscle of hair, sp sweat pore, sd sweat duct, sg sweat gland, all 

 epidermal ingrowths ; n nerve, np nerve papilla, hp hair papilla, / sub-cutaneous fat, all 

 in dermis. 



skeleton, the notochord (Fig. 12, B, nc)^ is one of the chief 

 characteristics of the Chordata; in addition to this there 

 are generally present in this phylum many other skeletal 

 elements which are usually cartilaginous or bony. In all 



