Types of Epithelial Tissuesin the Vertebrates

Connective Tissue Examples

Blood, a Liquid Tissue

Muscular Tissue

Neurons and Neuroglia

Human Skin Anatomy

The Epidermis

Positive Feedback

• During positive feedback, an event increases the likelihood of another event– Childbirth Process– Urge to Urinate– Blood Clogging– Acid Secretion in Stomach

• Positive Feedback– Does not result in equilibrium– Does not occur as often as negative feedback