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Human anatomy and physiology

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Meet the heart!Flow through the heartTwo circulations in the bodyThe heart is a double pumpLub dubLayers of the heartThermoregulation in the circulatory systemArteries vs. veins - what's the difference?Arteries, arterioles, venules, and veinsCirculatory system and the heart
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Introductory circulatory system quizGet 9 of 12 questions to level up!
Intermediate Circulatory System QuizGet 9 of 12 questions to level up!
Advanced circulatory system quizGet 9 of 12 questions to level up!
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Meet the lungsPeople and plantsThe bronchial treeInhaling and exhalingHow does lung volume change?Thermoregulation in the lungsThe lungs and pulmonary system
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Introductory respiratory system quizGet 9 of 12 questions to level up!
Intermediate respiratory system quizGet 9 of 12 questions to level up!
Advanced respiratory system quizGet 9 of 12 questions to level up!
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Meet the kidneys! Kidney function and anatomyGlomerular filtration in the nephronChanging glomerular filtration rateCountercurrent multiplication in the kidneyUrinationThe kidney and nephronSecondary active transport in the nephron
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Introductory urinary system quizGet 7 of 10 questions to level up!
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What's inside of blood?Red blood cellsBlood typesBlood cell lineagesLife and times of RBCs and plateletsHemoglobinHemoglobin moves O2 and CO2Fetal hemoglobin and hematocritOxygen contentHow do we make blood clots?Coagulation cascadeBohr effect vs. Haldane effect
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Role of phagocytes in innate or nonspecific immunityTypes of immune responses: Innate and adaptive, humoral vs. cell-mediatedB lymphocytes (B cells)Professional antigen presenting cells (APC) and MHC II complexesHelper T cellsCytotoxic T cellsReview of B cells, CD4+ T cells and CD8+ T cellsClonal selectionSelf vs. non-self immunityHow white blood cells move aroundInflammatory responseBlood cell lineages
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Meet the gastrointestinal tract!MouthTeethEsophagusStomachSmall intestine 1: StructureSmall intestine 2: DigestionSmall intestine 3: AbsorptionLiverHepatic lobuleBiliary treeExocrine pancreasEndocrine pancreasColon, rectum, and anusControl of the GI tract
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Introduction to neural cell typesAnatomy of a neuronOverview of neuron structureOverview of neuron functionSodium-potassium pumpCorrection to sodium-potassium pump videoElectrotonic and action potentialsSaltatory conduction in neuronsSynapse structureNeuronal synapses (chemical)Types of neurotransmittersTypes of neurotransmitter receptorsStructure of the nervous systemFunctions of the nervous systemMotor unitPeripheral somatosensationMuscle stretch reflexAutonomic nervous systemUpper motor neuronsSomatosensory tractsCerebral cortex
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Myosin and actinHow tropomyosin and troponin regulate muscle contractionRole of the sarcoplasmic reticulum in muscle cellsAnatomy of a skeletal muscle cellThree types of muscleMotor neuronsNeuromuscular junction, motor end-plateType 1 and type 2 muscle fibersCalcium puts myosin to workMuscle innervationAutonomic vs somatic nervous systemThermoregulation by muscles
Practice
Introductory musculatory system quizGet 14 of 20 questions to level up!
Advanced musculatory system quizGet 14 of 20 questions to level up!
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Skeletal structure and functionMicroscopic structure of bone - the Haversian systemCellular structure of boneSkeletal endocrine controlCartilageLigaments, tendons, and joints
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Endocrine gland hormone reviewThe hypothalamus and pituitary glandHormone concentration metabolism and negative feedbackTypes of hormonesCellular mechanism of hormone action
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Meet the skin! (Overview)What is skin? (Epidermis)What lies beneath the epidermis? (Dermis and Hypodermis)Where do our nails and hair come from?What's in sweat? (Holocrine, Apocrine, Merocrine Glands)LeBron Asks: Why does sweating cool you down?Overview of Sensation and Meissner's CorpusclePacinian's Corpuscle and Merkel's DiskRuffini's Ending and Hair Follicle ReceptorPain and temperatureThermoregulation by muscles
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Why we need a lymphatic systemHow lymphatic vessels move fluidThe lymphatic system's role in immunityLipid and protein transport in the lymphatic systemWhat is actually in lymph
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Welcome to the reproductive systemAnatomy of the male reproductive systemTransport of sperm via erection and ejaculationSpermatogenesisTestosteroneBasics of egg developmentThe ovarian cycleMeet the placenta!Reproductive cycle graph - Follicular phaseReproductive cycle graph - Luteal phaseEstrogenMaternal changes in pregnancyLabor (parturition)Breast anatomy and lactation
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Diagnosis of pregnancyPregnancy physiology ILabor and deliveryPostpartum physiologyPreeclampsiaPlacenta previaPlacental abruptionPlacenta accretaUTIs in pregnancyBlood conditions in pregnancySheehan syndromePostpartum hemorrhageUterine inversionDiabetes in pregnancyPreterm laborC-section

About this unit

Get introduced to the major organ systems of the human body! You’ll learn some general anatomy (a roadmap of your body), learn how the arm bone actually connects to the shoulder bone, and how the different organs work together to keep you alive. Watch some videos, read some articles, try some flashcards, and then quiz yourself!