2 Anatomy vs. Physiology LT#1 Anatomy is the study of structure of body parts & their relation to one anotherPhysiology is the study of the function of the body’s structural machineryStructure of an organ suits its function
4 Levels of Organization – pg 2 LT#2 Chemical – atoms combined to form moleculesCellular – cells are made of moleculesTissue – consists of similar types of cellsOrgan – made up of different types of tissuesOrgan system – consists of different organs that work closely togetherOrganism – made up of the organ systems
5 Anatomical Position LT#3 Standing erectFace forwardArms at the sidesPalms and toes forward
11 Organ systems & associated organs LT#6 Integumentary sys – skin, hair, nails, sweat glands, sebaceous glandsSkeletal sys – bones, cartilage, ligaments, red & yellow marrowMuscular sys – skeletal muscle, smooth muscle, cardiac muscleNervous sys – brain, spinal cord, sense organsEndocrine sys – hormone secreting glands, like gonads
12 Organ systems & associated organs LT#6 (continued) Circulatory sys – heart, blood vessels, lymphLymphatic sys – disease fighting = immune systemRespiratory sys – lungs, bronchial tubesDigestive sys – mouth (teeth, tongue, salivary glands), esophagus, stomach, small intestine, colon, liver, gall bladder, pancreasReproductive sys – gonads, external sex organs
13 Functions of the organ systems LT#7 Integumentary – protection, temperature control, sensesSkeletal – support, protection, blood production, mineral storageMuscular – movement, fight/flight responseNervous – perception, information processing, responsesEndocrine – produces hormones to regulate all functions
14 Functions of the organ systems LT#7 (continued) Circulatory – transport nutrients, eliminate wasteLymphatic – disease fightingRespiratory – oxygen in, carbon dioxide outDigestive – receives & processes nutrientsReproductive – perpetuation of the species
15 Homeostasis & how to maintain it LT#8 Keeping the body’s internal environment fairly constant: [glucose 0.1%], pH 7.4, BP 120/80, temperature ~37 C (98.6 F)Negative feedback (fig 1.9 p 13)Positive feedback
16 Negative feedback – the output shuts off the original stimulus
18 Positive feedback – output exaggerates the original stimulus – e. g Positive feedback – output exaggerates the original stimulus – e.g. regulation of blood clotting
19 Disease: Local vs. Systemic LT#9 A breakdown in normal self-regulation – homeostasis fails!Local – restricted to a certain body part (e.g. UTI – urinary tract infection)Systemic – entire body affected or at least several organ systemsAcute vs. chronic / sudden, short vs. less severe & longer duration
20 Name the 4 quadrants of the abdominopelvic cavity Name the 4 quadrants of the abdominopelvic cavity. Divide it into the 9 regions. SQ#7
24 Answer the following questions Organ donation – the application piece. Please read the Medical Focus on p. 10.Answer the following questionsWhy is organ donation fairly successful? (2 reasons)How many organs can be given from 1 person?What is problematic about organ donation?What are the requirements for donation?How are organs distributed?
25 Organ donation reflection (10pts) Write a brief reflection about how you feel about organ donation. Would you do it? Have you done it already?What about the film 7 Pounds? Would you want to prescreen your donations?