2 Cells…Tissues…Organs…Systems Cells: Basic unit of structure and function—keeps organisms aliveTissues: Group of specialized cells that perform the same function—what are the 4 types?
3 4 Types of Tissue Connective: Connects all parts of body Epithelial: Surfaces of body inside and outMuscle: Makes parts of the body moveNervous: Controls messages between brain & parts of body
4 TissuesOrgansOrgan Systems What are organs?….made up of tissues that do a specific job!
5 Organ Systems What is an organ system? There are 11 in the human body Group of organs that work together to perform a major functionThere are 11 in the human bodyISM are the first 3!1. Integumentary: (P511) skin, hair and nailsFunction: provides a barrier and protection2. Skeletal: (P 519) bones, cartilage, ligaments, tendonsFunction: Provides support and protection, minerals, blood cells3. Muscular: (P 527) musclesFunction: Pulls on the skeleton to provide movement
7 The next 6 organ systems4. Circulatory: (P 512): tube like vessels throughout body provides a transportation networkFunction: carries food and oxygen to all the cells5. Respiratory (P 512): lungs, nose, pharynx, larynx, trachea, bronchi, bronchioles, lungsFunction: takes in oxygen and disposes of carbon dioxide6. Digestive System (P 512): mouth, pharynx, esophagus, stomach, small and large intestines, rectum, liver, pancreasFunction: breaks down food into small molecules the body can use
8 7. Excretory System: (P512): kidney, ureter, urinary bladder, urethra Function: removes waste from the breakdown of materials in the bloodstream8. Immune System: (P568): specialized white blood cellsFunction: destroys disease-causing bacteria and viruses9. Reproductive: male males-testes, epididymis, vas deferens, urethra, and penis; Females-Ovaries, Fallopian tubes uterus, vaginaFunction: contains organs that produce sex cells and produce chemicals that regulate physical development of maturing bodies.
9 C, R, D, E, I, R: These 6 carry out the processes of life.
10 Last 2 are Nervous and Endocrine These two provide control over body processes.
11 10. Nervous: Brain, spinal cord, peripheral nerves, (senses: sight, hearing, touch, smell, taste) Functions: Recognizes and coordinates the body’s responses to changes in its internal and external environments11. Endocrine: Glands- Hypothalamus, pituitary, pineal, thyroid, parathyroid, adrenals pancreas, ovaries (females), testes (males)Function: Controls growth, development, and metabolism, maintains homeostasis
12 I, S, M, C, R, D, E, I, R, N, EI, S, M, C, R, D, E, I, R, N, EISM (I See My)CRDEIR (Cat Running Delightfully Except In Rooms)NE (Not Empty)
13 HomeostasisAll of the body systems work together to maintain homeostasis!The process by which an organism’s internal environment is kept stable in spite of changes in the external environment.What are examples?Why is this important?