Physiology 3140A Lecture Notes - Lecture 2: Desmosome, Mesoderm, Respiratory System
28 Dec 2017
School
Department
Course
Professor
Document Summary
All of the different cell types that we have work together to form structures that achieve a common function, called tissues. Tissues can then work together to form an organ. Nervous tissue: mental activity, sensory input and integration, regulates muscles and glands, homeostasis, example: brain, spinal cord. Muscular tissue: contraction, movement and support, example: skeletal muscle, cardiac muscle, smooth muscle. Epithelial tissue: lines surfaces and cavities. Involved in secretion, absorption, protection, etc: example: epidermis, skin, gut lining, mouth lining, blood vessel cells, alveoli. Blood: regulates nutrient and oxygen transport, metabolic waste, immune system, example: red blood cells, white blood cells and platelets. From the single cell fertilized embryo, cells proliferate rapidly and cells begin to organize into differentiated cells that will become the whole organism. The formation of an animal requires that many types of tissues be developed: the tissues are where the cells are assembled and bound together.
