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Mini 4 review
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| Question | Answer |
|---|---|
| What are the 4 things found in Erythrocytes? | plasma membrane, cytoskeleton, hemoglobin, glycolysis |
| Anisocytosis | unequal size of RBC |
| What allows for biconcave shape of RBC? | Spectrin binds to ankrin to bine integril proteins |
| Hereditary spherocytosis | defective spectrin or ankrin, loose biconcave shape, abnormally fragile and breakdown rapidly |
| What are granulocytes? | neutrophils, basophils, eosinophils, don't last past feew days |
| first WBC to show up during infection? | neutrophil |
| Neutrophils use energy from where to generate ATP | glycolosis, so they lack mitochondria, allows them to survive under anaerobic conditions |
| What are azurophilic granules and what are the specific granules in neutrophils? | azurophilic granules: lysosomes and myeloperoxidase, collagenase Specific granules: lysosyme and lactoferrin, collagenase |
| what are the chemotacticall active factors of neutrophils? | C5a intermediates of lipid metabolism: arachidonic acid and leukoteirne B4 (LTB4) -N-formylated oligopeptides (these can also be found in mitochondria--why necrosis causes inflammation) -chemokins/cytokines |
| 4 classic sx of inflamation? | swelling redness heat pain |
| components of acute inflammation | blood vessels increase in caliber to allow more blood flow tight jxn holding endothelial cells loosen neutrophils getting attracted |
| Neutrophil oxidative burst process | carried out by NADPH oxidase: converts O2 to superoxide ion Myeloperoxidase: convers superoxide ion to hydrogen peroxide-->HOCl-->kill bacteria also can't form neutraphil extracellular traps (NETs) |
| What is chronic granulomatous disease? | CGD results from an inability of phagocytes to produce bactericidal superoxide anions. Due to NADPH oxidase enzyme deficiency. get life long bacterial and fungal infxn |
| Eosinophils | bilobed nucleus, pink colored granules fxn in parasitic and phagocytosing ag-ab complexes |
| Eiosinophilia | increase in number of eosinophils in blood associated with parasitic infxn or allergic rxn |
| Specific granule of eosinophil | major basic protein: very alkaline coat the outside of the extracellular parasite this can also damage surround nml tissue |
| Basophils specific granules? | similar to mast cells, have heparin and histamine |
| Basophil vs. mast cell | Mast cells in C.T Basophils in blood |
| Lymphocytes differentiation | only via surface markers tell difference b/w T, B, and null cells. contain no specific granule, have a few azurophilic granule |
| Monocytes in tissue C.T Liver nerve Skin bone | macrophage in C.t Kupffer cell in liver microglia cell in nervous langerhans in skin dendritic in lymphnodes osteoclast in bone |
| Platetlets | are non nucleated, contain lysosomes mitrochondra, ER, golgi and extensive cytoskeleton |
| Platelet factors involved in blood clotting | vWf, platelet factor IV in wound repair: platelet derived growth factor (PDGF) and transforming growth factor beta (TGF-B) |
| Fixed cells | fibroblasts, adipose cells, pericytes, mast cells macrophages |
| Transient cells | plasma calls, lymphocytes, granulocytes |
| What 2 muscles form the pelvic diaphragm? | levator ani and coccygeus |
| levator ani muscles are made up of what 3 mucles? | pubococcygeus, puborectalis, and iliococcygeus |
| What is the innervation of levator ani muscle | S4 and the inferior rectal nerve(S2-S4), and coccygeal plexus |
| What muscle is involved in defication | covers and lines most of the lateral wall of the pelvis. -obturator internus exit through lesser sciatic foramen and insert on the greater trochanter of the femur. -action: perform external hip rotation. |
| Bulbospongiosus Origin, Insertion, action, and innervation? | origin: central tendon to dorsum of clitoris in females and root of penis in males. Action: compress vagina orific or compress urethra. innerv: perineal nerve and pudendal nerve |
| Ischiocavernosus origin, insertion, action | o: ramus of ischuium I: near pubic symphysis A: maintains erection of penis or clitoris |
| What are structures located in superficial perineal pouch in both sexes? | ischiovaernosus, bulbospngiosus, superficial transverse perineal muscles, deep perineal branches of the internal pudendal vessel and pudendal nerves |
| What the sex specific muscles located in superficial perineal pouch? | males: root of the penis, bulbous urethra females: clitoris, bulbs of vestibule, greater vestibular gland |
| Whate are structures of deep perineal pouch? | urethra and external urethral sphinter |
| What are deep perineal pouch structres in males? | intermediate urethra, deep transverse perineal muscles, bulbourethral glands, dorsal neurovascular structures of penis |
| What are deep perineal pouch structres in females? | proximal urethra, dorsal neurovasculature of clitoris |
| The superficial perineal space is enclosed by what fascia? | superficial perineal (colles') fascia |
| External urethral sphincter O, I, A, N | O: ischial tuberosity I: surround urethra A: compress urethra to maintain urine continence N: pudenal (S2-S4) |
| Ischioanal fossa boundaries | Ant: sphinter urethae, and deep transverse perineal muscles Post: the gluteus maximus, sacrotuberous lig Superiomedially: anal sphincter and levator ani, lateral: obturator fascia |
| Contents of ischioanal fossa | fat, infrior rects nerves and vessels, pudendal (alcock's) canal: transmits pudendal nerve and internal pudendal vessels |
| Conjugates (pelvic diameters) | -Transverse 13.5cm -Oblique 12.5 cm -Obstetrical/straight (AP) 11.5 cm – pubic symphysis to promontory |
| Obstetrical/straight measured how? | Measured on index finger although middle finger touches promontory – must be greater than 11.0 cm (since middle finger is 1.5 cm longer than index) |
| How does baby head turn during delievery | In delivery, baby’s head makes 90-degree turn following longest conjugates in different areas (transverse at inlet, oblique in cavity, AP in outlet) |
| Shapes of pelvis | Android (male) – heart-shaped, threat in childbirth Gynecoid – normal female Anthropoid – common in black women, AP oval good in childbirth Platypelloid (rare in both sexes) |
| Spondylolysis | (stress fracture of L5)/spondylolisthesis (with anterior dislocation of lumbosacral joint) – low back pain in adolescents, s/s: change in gait, stiff back/hamstrings |
| during 5th week of development what are the primary organs of hematopoiesis | liver and spleen |
| during the 5th month of developments where does hematopoisis occur | bone marrow |
| What are the 2 components of Red bone marrow? | stroma: where blood cells develop Sinusoids:blood vessels where the mature blood cells enter the blood stream |
| What is kind of cells and fibers make up stoma | reticular celss which give off reticular fibers (type III collagen) |
| Stroma of bone marrow contains what types of collagen and structures? | contains collagen types 1 and II, fibronecti and laminin which with hemonective interact with cell receptors to bind cells to retucular fibers |
| General trend of development of erythroctes | cells get smaller, nucleus condenses and is extruded, loses ribsomes RNA and organelle, grains hgb |
| Erythropoesis stages | Proerthroblast-->basophilic erythroblast-->polychromatophilic erythroblast-->orthochomatophilic erythroblas-->reticulocyte-->erythrocyte |
| Which two stages contain basophilic cytolasm | proerythroblast and basophilic erythroblast |
| which stage does erythoblast enter the bloodstream | reticulocyte |
| what are macrophages called that are located in bone marrow and digest nuclei of eythropoeisis | nurse cell |
| What growth face is secreted to control hematopoesis? | Erythropoetin (EPO) made in kidney ack on CFU-E |
| Granulocytopoises stages: | Myeloblast-->promyelocyte-->myelocyte-->metamyelocyte-->band/stab cell-->mature cells |
| During what stage in granulocytopoesis do you gain azurophilic granules and during which stage do you grain specific granules? | promylocyte: azyrophilic myelocyte: specific granules appear |
| What does shift to he left mean? | large number of band cells of neutrophils appear in the blood: indication of bacterial infection |
| monocytopoiesis progenitor and stages | CFU-GM (same as neutrophil) Promonocyte-->monocyte-->macrohpages |
| Leukemias | leukemia are malgnant clones of leukocyte precursors, usually release large number of immature cells into the blood. |
| Megakaryocytopoises | comes from CFU-Meg -->medgakayoblast: replicates dna--> have demarcation membranes-->become megakaryocyte-->produce platelets |
| What is the fxn of iron? | central electron transfer agen, used as a co-factor, and is important for bulk store -maintain reducing environment in cells |
| What is acute hemolytic transfusion rxn? | mismatch in blood types Sx: fever, chills, nausea, CP, back pain, pain at sit of transfusion, hypotenstion, dyspnea, oligourea, dark urine |
| Delayed hemolytic rxn | mismatched blood from blood groups other than ABO: no preformed Ab -low grade fever, maliase, weak, light anemia, hyperbilirubinemea (2 weeks after) not severe -slow production of ab |
| Febrile nonhemolytic transfusion rxn | giving plasma: no RBC breakdown, but there is breakdown of WBC -Sx include little fever and chills and it happens soon after transfusion -due to mistmatch of MHC/HLA -happens in repeat recepients |
| Epitaxis | gene modifier, result in reduced penetrance -interaction b/w non allelic genes that are in 2 different places |
| What makes A, B, O blood group and blood Oh | A: N-acetylgalactosomine B: D-galactosomine o: lace of galactosyl transferase |