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83 Cards in this Set
- Front
- Back
How many bones are there in the human body?
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206
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What is the Diaphysis?
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The long portion of the bone, longer than it is wide.
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The skeletal system is comprised of 3 type of connective tissue
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Bones-hard elements of the skeleton
Ligaments-dense fiberous connective tissue that binds bones together Cartilage-specialized connective tissue consisting primarily of fibers of collagen and elastic in a gel-like fluid called ground substance |
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Epiphysis
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Enlarged nob at each end of a diaphysis
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Diaphysis
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Compact and spongy to store bone marrow and to be less weight.
-Kids have less Red Blood Cells |
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Osteoblasts
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Builder lays down new bones
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Osteoclasts
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Bone destroyer, bone cutter
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Osteocytes
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Mature bone cytes
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Chondrocytes
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Cartilage cells
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What happens when bones develop?
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-Cartilage is made
-Ossification -Growth plate left |
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Ossification
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Cartilage to bone
-In order to grow There is blood in bone tissue |
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What allows bones to grow?
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-Growth Hormone
-Sex Hormone-growth spirts |
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Bone Remodeling
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Change in the bone structure due to the change in activity
-walking for about a year will change your bones -calcium and Vitamin D |
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Blood clot results in....
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Hematoma
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Cartilagenous Callus
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Replaces the hole in the bone
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Bony Callus
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After it clots and cartilage replaces it
-Remodeling |
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Osteoporosis
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Osteoclasts are working
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Sprain
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Streched or torn ligament. Often accompanied by internal bleeding and bruising and swelling
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Hormones
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After menopause womens' estrogen level goes down and they get more fractures
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Arthritis
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Joint inflammation
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How many joints are there in the human body?
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230
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Muscle Contractions
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Jerking sensation when you're trying to fall asleep
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What are the 5 arrangements of the sketal muscles
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-Origin
-Insertion -Synergistic -Antagonistic -Tendons |
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Origin
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The end of the muscle that is attached to the bone that does not move during muscle contraction
-Closest to the center |
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Insertion
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The end of the muscle attached to the bone that moves when the muscle contracts.
-Further away from the body -More mobile -Often over a joint |
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Synergistic
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work for a common function, work as a group
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Anatgonistic
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work opposite from another muscle
-Allows another muscle to relax |
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Tendons
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A cord of dense fiberous connective tissue attaching muscle to the bone.
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Muscle Structure
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muscle>fascicle>muscle fiber cell>Myofibrils>Sarcomeres>Myofiaments
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Fascicle
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Muscle cell bundles
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Muscle fiber cell
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A single muscle strand. A connective tissue fiber is a thin strand of extracellular tissue.
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Myofibrils
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Makes up muscle cell/fiber
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Sarcomeres
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Contractile unit of a muscle, unit in the Myofibri
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Myofilament
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Proteins
-actin -myosine |
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Muscle Contraction
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_Sliding filament model
VERY IMPORTANT |
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Where does the ATP come from?
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-Stored ATP only lasts 10 sec.
-Creatine phosphate w/ ATP last 45 sec. |
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Muscle Relaxation
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-Nerves stop stimulation
-Calcium Sequestered(brought back to the sarcoplasmic reticulum) -cross bridges(between myosin/actin) stop being formed |
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Rigors Mortis
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When someone dies eventually ATP is used up, but cross bridges are still attached, making the body stiff bc there is no ATP to break cross-bridges apart
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Slow Twitch
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main use-endurance activites
Metabolism-aerobic blood vesscles-more(for oxygen) color-Red (dark meat) Myoglobin-yes Stored Glycogen-some Mitochondria-more |
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Fast Twitch
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main use-Quick burst of energy
Metabolism-mostly anaerobic blood vesscles-less color-white(white meat) Myoglobin-NO Stored Glycogen-more Mitochondria-less |
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aerobic training
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-Slow twitch fiber
-Biking running, swimming Increases Endurance, blood vessels, mitochondria, myoglobin |
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Anarobic training
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Fast Twitch Fiber
More strength, weight training, bulk up the cells you have not increase the number Increases: proteins, myofibrils, muscle strength, muscle mass, muscle size |
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Cardiac Muscle
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Striations
Arrangement similar to skeletal muscle |
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Smooth Muscle
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No Striations
Actin & Myosin on outside of cell |
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Steriods
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-related to testosterone
-illegal if not perscribed -bulks up muscle masss -used by both males and females |
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Muscular Dystrophy
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A group of inherited muscle-destroying diseases
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Tetanus/Botulism
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Produce potent chemical
Could kill the world with one pint; bad canning Tetanus-lock jaw |
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Muscle cramps/soreness
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Ion imbalance/sacromeres tear
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Fascitis
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Skeletal muscles, can inflame and the tissue doesn't heal. Most common in your foot
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What are the 3 functions of blood??
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Transportation-our matrix(plasma)
Regulation-your temperature plasma and platlets Defense-white blood cells |
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What 4 things make up the blood?
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red blood cells(44%)
Platlets and white blood cells (1%) Plasma(55%) |
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Where do formed elements come from?
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Red bone marrow
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Stem cells
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cells that are immature and indfferentiated
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Characteristic of red blood cells??
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Shape-dislike, very thin, able to fold
organelles-mature, have no organelles, no nucleus but still eukaryotic Oxygen & CO2-oxygen binds to iron Metabolism-anarobic Hematocrit-a measure of red blood cells |
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How many RBC do we make per second?
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2 million
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RBC Production
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-from red marrow
-old and worn out one removed by spleen and liver -regulated eythropietin |
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Eythropoietin
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Made by the kidney's stimulates RBC production in the bone. If oxygen gets low then the epo gets kicked out.
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Blood Doping
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Increase in hematocrit
-Extreme athletes use it to increase pressure. -Your blood thickens and you can clog your artieries. |
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RBC Problems
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Anemia-Low iron
Carbon monoside poisoning-takes oxygen from surface -blood poisoning-bacteria gets into your blood Sickle cell disease-Helps African's fight malaria |
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White Blood Cells
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-helps cells to fight to stay clean
-made in red marrow -nucleated -can circulate and/or move into tissue -most mobile cell |
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White Blood Cell Classification....
Granulcytes |
-Short lived
-Neutrophils(60-70%) -Esonophils(2-4%) -Basophils(.5-1%) |
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White Blood Cell Classification....
Agranurocytes |
Lack, w/out, long lived
-Monocytes(3-8%) Big cells w/ moonshaped nucleus -Lymphocytes 20-25% small cells with large nucleus. |
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White Blood Cell Specific Classification....
Neutrophils |
-Short lived (6-72 hrs.)
-most abundant -nonspecific phagocytosis-cell eating, eats anything -first to drive during inflammatory response -move into tissue |
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White Blood Cell Specific Classification...
Platelets(Thrombocytes) |
-Live 5-9 days
-fragments of megakaryocytes -clogs blood -regulated by thrombopoietin |
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How do we clot our blood?
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-Blood vessile spasm
-platelet plug is formed -blood clot forms -Thrombin converts blood protein into fibrin |
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Antigen
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Evoke an immune response
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Antibody
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proteins typically Y-shaped
-proteins made by your body in a response to an antigen. |
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Blood type
A |
Antigen-A
Antibodies-B |
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Blood type
B |
Antigen-B
Antibodies-A |
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Blood type
AB |
Antigen-A&B
Antibodies-none |
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Blood type
O |
Antigen-none
Antibodies-A &B |
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Determination of blood types
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-Surface proteins(call antigens)
-presence of antibodies |
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What is the most common donor?
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Blood type O
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Rh Blood Type
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Rh+-have D antigens
Rh- don't |
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Rho GAM
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women are given drugs around 28 weeks. Injections D Antibodies, don't stay very long.
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Basophils
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-Live (3-72 hrs.)
-Role in inflmmatory -carries Histamine -very rare White blood cell whose granules stain well with basic dye. It releases histamine and other substances during inflammation. |
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Eosinophils
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-Not very common
-Live 8-12 days -responses against parasitic infections(worms) White blood cell Attack parasites and function in allergic responses. |
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Monocytes
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-Can live for several months
-Move into tissue-macrophages pick up and show to others. -nonspecific phagocytosis DOESN'T cause mono! |
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Lymphocytes
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-Long lived(years even life time)
-Relatively common(40-50%) -migrate into lymph nodes -Made into B-cells, T-cells, and NK cells |
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T-cells use
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Antibodies
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B-cells use
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an indirect action
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Diseases of WBC's
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-Leukemia-cancer of the white blood cells
-bone marrow filling up with nonfunctional cells -mononucleosis |
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Mononucleosis
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infects a lymphocyte
-basis of the immune system |