1. Animal Form and Function – Intro Integumentary System Chapter 40

2. Anatomy and Physiology Anatomy – the study of an organisms structure Physiology – the study of function Levels of Organization – Cells  Tissues  Organs  Organ Systems Cell = basic unit of structural organization for all living things – Emergent properties functions that arise due to new structures – Structure of each level determines the function

3. Animal Tissues Epithelial Connective Nervous Muscular

5. Epithelial Tissue Functions – Covers the outside of the body – Lines organs and body cavities - lumens – Barrier to pathogens – Prevents fluid loss – Secretes chemicals (glands)

6. Epithelial Tissue – pg 824 Structure – tightly packed - tight junctions Columnar Epithelium – Brick like – Simple – Single layer – Stratified – Multiple layers – Pseudostratified – Appears layered, but is really only one layer of different sizes Cuboidal Epithelium – Dice like – Simple or Stratified Squamous Epithelium – Tile like – Simple or Stratified

8. IQ 40.1 Epithelial system concept map with types and functions

9. Connective Tissue Function – Binds and supports other tissues

10. Connective Tissue – pg 825 Structure – loosely packed – Fibers Collagenous fibers – collagen proteins Elastic fibers – elastin proteins Reticular fibers – collagen proteins – Joins connective tissue to other tissues

11. Connective Tissue Blood – RBC/WBC & platelets in water based fluid plasma Bone – osteocytes living in calcified hard matrix Ligaments – fibroblasts in a matrix of collagen fibers – bone-to-bone connection (LBB) Tendons – fibroblasts (secrete protein of extra-cellular fibers) in a matrix of less elastic fibers – muscle-to-bone connection (TMB) Cartilage – chondrocytes in a soft/pliable matrix, non-mineralized Adipose tissue – mostly cells (little matrix) Loose connective tissue – tissue glue of the body

12. IQ 40.2 Connective tissue bubble map – with types and functions

13. Muscle Tissue Function – Movement through contraction and relaxation

14. Muscle Tissue – pg 826 Structure – Muscle fibers – actin and myosin – Smooth Involuntary Non striated Lines internal organs – Skeletal Voluntary Striated Multinucleated – Cardiac Involuntary Striated

16. Nervous Tissue Function – Senses stimuli and transmits signals – Electrochemical communication – Coordination of body activities

17. Nervous Tissue – pg 826 Structure – Nerves – Glial Cells – Neuron Nerve Cell – Sensory Neuron – Interneuron – Motor Neuron

19. IQ 40.3 Muscle and Nervous tissue concept map

20. Organ Systems Digestive Circulatory Respiratory Immune Lymphatic Excretory Endocrine Reproductive Nervous Integumentary Skeletal Muscular

22. Integumentary System Functions – Protection – Thermoregulation – Excretion of metabolic wastes through sweat

23. Integumentary System Structure – mostly epithelial tissue – 3 layers Epidermis – dead cells Dermis – living cells – Hair follicles – Sweat and oil glands – Nerves – Muscle fibers – Blood vessels Subcutaneous layer (hypodermis) – adipose (fat) cells – connective tissue

24. Thermoregulation Maintenance of internal body temperature Ectotherms – Regulate using the environment Endotherms – Regulate using metabolism – Negative feedback Shivering  increased metabolism  increased heat Sweating or Panting  evaporative cooling  decreased heat Vasodilation  increased blood flow  increased heat Vasoconstriction  decreased blood flow  decreased heat

26. Skin Diagram Fill in structures and functions of each structure

27. Summary