Patho for Primary Care, Module 1A
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
---|---|---|---|---|---|
Atrophy | decrease in cell size
🗑
|
||||
Most significant adaptive changes in cells include... | atrophy, hyperplasia, metaplasia
🗑
|
||||
hyperplasia | increase in number of cells
🗑
|
||||
metaplasia | reversible replacementof one mature cell type by another less mature cell type
🗑
|
||||
dysplasia (deranged cellular growth) is not ........... | considerred a true adaptation, but an atypical hyperplasia
🗑
|
||||
Etiology of pathologic atrophy | decrease in workload
🗑
|
||||
Etiology of Physiologic atrophy | Occurs in early development. e.g. thymus gland in childhood.
🗑
|
||||
myofilaments | part of muscle fiber which causes muscle contraction
🗑
|
||||
autophagy | self-eating process creating autophagic vacuoles
🗑
|
||||
autophagic vacuoles | membrane bound vesicles within the cell that contain cellular debris - small fragments of mitochondria and endoplasmic reticulum-and hydrolytic enzymes.
🗑
|
||||
Hypertrophy | Increase in the size of the cell
🗑
|
||||
Hypertrophy is associated with.... | increase in accumulationj of protien in the cellular components, not cellular fluid.
🗑
|
||||
WOuld hypertrophy in the heart secondary to HTN be pathologic of physiologic? | Pathologic
🗑
|
||||
Where does hypertrophy appear as an adaptive response | Heart and striated muscles as they cannot react by mitotic division and production of new cells to share the work.
🗑
|
||||
physiologic hypertrophy occurs where | skeletal muscle in relation to heavy work
🗑
|
||||
Cardiac hypertrophy causes what peptide to be re-introduced? | ANP - atrial natriuretic peptide (causes salt secretion by kidney, decreasing blood volume and pressure, and reducing hemodynamic load.
🗑
|
||||
COmpensatory hyperplasia | Allows certain organs to regenerate
🗑
|
||||
Which cells do not regenerate? | nerve cells, lens cells of the eye, skeletal muscle cells, myocardial cells
🗑
|
||||
Cellular injury is caused by | a lack of oxygen (hypoxia), free radicals, caustic or toxic chemicals, infectious agents, unintentional and intentional injury, inflammatory and immune responses, genetic factors, insufficient nutrients, or physical trauma from many causes.
🗑
|
||||
List the manifestations of cellular injury. | General sense of fatigue and malaise
A loss of well being
Altered appetite
fever
increased heart rate
increase in leukocytes (because of infection)
pain
presence of cellular enzymes
lactate dehydrogenase
creatine kinase
aspartate aminotransfe
🗑
|
||||
What are the 2 main types of cell death? | necrosis and apoptosis
🗑
|
||||
Necrosis | Necrosis is the sum of the changes after local cell death and includes the processes of inflammation and cellular lysis.
🗑
|
||||
The 4 major types of necrosis are: | coagulative, liquefactive, caseous, and fat. Different types of necrosis occur in different tissues
🗑
|
||||
What are the structural signs that indicate irreversible injury and progression to necrosis? | the dense clumping and disruption of genetic material and the disruption of the plasma and organelle membranes.
🗑
|
||||
Gangrene necrosis/gangrene | tissue necrosis caused by hypoxia and subsequent bacterial invasion.
🗑
|
||||
Apoptosis | a different type of cellular death, is a process of selective cellular self-destruction called programmed cell death.
🗑
|
||||
Describe the water distribution in the human body. x 6 | Body fluids are distributed among functional compartments and are classified as ICF or ECF
🗑
|
||||
The sum of all fluids is... | The sum of all fluids is the TBW, which varies with age and amount of body fat.
🗑
|
||||
Water moves b/w the ___ and ___ compartments principally by _________. | Water moves between the ICF and ECF compartments principally by osmosis.
🗑
|
||||
How does water move b/w the plasma and interstitial fluid? | Water moves between the plasma and interstitial fluid by osmosis and hydrostatic pressure, which occur across the capillary membrane.
🗑
|
||||
What is movement across the capillary wall called and how is it described? | Movement across the capillary wall is called net filtration and is described according to the Starling law.
🗑
|
||||
What is edema? | Edema is a problem of fluid distribution that results in accumulation of fluid within the interstitial spaces.
🗑
|
||||
What is edema caused by? | caused by arterial dilation, venous or lymphatic obstruction, loss of plasma proteins, increased capillary permeability, and increased vascular volume
🗑
|
||||
The pathophysiologic process that leads to edema is related to... | related to an increase in forces favoring fluid filtration from the capillaries or lymphatic channels into the tissues
🗑
|
||||
The pathophysiologic process that leads to edema may be | localized or generalized and usually is associated with weight gain, swelling and puffiness, tighter-fitting clothes and shoes, and limited movement of the affected area.
🗑
|
||||
How are alterations in water balance classified? | Alterations in water balance may be classified as isotonic, hypertonic, or hypotonic.
🗑
|
||||
When do isotonic alterations occur? | Isotonic alterations occur when changes in TBW are accompanied by proportional changes in electrolytes.
🗑
|
||||
When do hypertonic alterations develop? | Hypertonic alterations develop when the osmolality of the ECF is elevated above normal, usually because of an increased concentration of ECF sodium or a deficit of ECF water.
🗑
|
||||
What may be the cause of water deficit? | Water deficit, or hypertonic dehydration, is rare but can be caused by lack of access to water, pure water losses, hyperventilation, arid climates, or increased renal clearance.
🗑
|
||||
Discuss the etiology and clinical manifestations of hyperchloremia | Hyperchloremia is caused by an excess of sodium or a deficit of bicarbonate.
🗑
|
||||
Discuss the etiology and clinical manifestations of hypernatremia | (sodium levels >147 mEq/L) may be caused by an acute increase in sodium or a loss of water.
🗑
|
||||
Discuss the etiology and clinical manifestations of Hyponatremia | (serum sodium concentration <135 mEq/L) usually causes movement of water into cells.
🗑
|
||||
What is hyponatremia caused by? | caused by sodium loss, inadequate sodium intake, or dilution of the body’s sodium level.
🗑
|
||||
Water excess | rare but can be caused by compulsive water drinking, decreased urine formation, or the syndrome of inappropriate secretion of ADH.
🗑
|
||||
causes of metabolic acidosis | an increase in noncarbonic acids or loss of bicarbonate from the extracellular fluid.
🗑
|
||||
clinical manifestations of metabolic acidosis | HA, lethargy, coma, Kussmaul respirations, anorexia, n/v, diarrhea, abd discomfort,
🗑
|
||||
S/S of severe metabolic acidosis | disrythmias, hypotension, death
🗑
|
||||
Causes of metabolic acidosis | an increase in bicarbonate usually caused by loss of metabolic acids from conditions such as vomiting, gastrointestinal suctioning, excessive bicarbonate intake, hyperaldosteronism, and diuretic therapy
🗑
|
||||
Clinical manifestations of Metabolic alkalosis | muscle cramps, hyperactive reflexes r/t volume depletion, weakness, parasthesas, numbness/tingling of fingertips & perioral area, tetany, seizures; Slow, shallow respirations= + CO2 = confusion, convulsions
🗑
|
||||
S/S of severe Metabolic alkalosis | atrial tachycardia, dysrhythmias
🗑
|
||||
Causes of Respiratory Alkalosis | occurs with alveolar hyperventilation and excessive reduction of carbon dioxide, or hypocapnia
🗑
|
||||
Clinical manifestations of respiratory alkalosis | dizziness, confusion, tingling of extremities, convulsions, coma, carpopedal spasm, tachypnea
🗑
|
||||
Causes of respiratory acidosis | decrease of alveolar ventilation and an increase in levels of carbon dioxide, which in turn causes hypercapnia.
🗑
|
||||
Initial s/s of respiratory acidosis | HA, restlessness, blurred vision, apprehension. Respiratory rate is initially rapid and gradually becomes depressed.
🗑
|
||||
initial s/s of respiratory acidosis are followed by... | Lethargy, muscle twitching, tremors, convulsions, coma
🗑
|
||||
List the human defense mechanisms | Innate immunity includes natural barriers and inflammation.
🗑
|
||||
Natural barriers include... | physical, mechanical, and biochemical barriers at the body's surface
🗑
|
||||
Name the physical and mechanical barriers as the first lines of defense | skin and mucous membranes
🗑
|
||||
Name biochemical barriers as first lines of defense against invading pathogens | Antibacterial peptides in mucous secretions, perspiration, saliva, tears, and other secretions
🗑
|
||||
What role do Cathelicidins and defensins play in the first line of defense? | two classes of antimicrobial peptides produced by epithelial cells.
🗑
|
||||
How do normal bacterial flora fit into the first line of defense? | provide protection by inhibiting colonization by pathogens and by releasing chemicals that prevent infection.
🗑
|
||||
Does inflammation have memory cells? | no
🗑
|
||||
What does the vascular response in acute inflammation include? | vasodilation, increased capillary permeability, and white blood cell adherence to inner vessel walls and their migration through vessel walls.
🗑
|
||||
What are the 3 plasma protien systems which provide a biochemical barrier against invading pathogens in the circulation? | complement system, clotting system, kinin system
🗑
|
||||
What 3 pathways can the complement proteins be activated in? | the classical pathway, the alternative pathway, and the lectin pathway.
🗑
|
||||
Activation of the complement pathways results in ..... | opsonization, activation of anaphylatoxins, cell lysis, and leukocyte chemotaxis.
🗑
|
||||
The clotting cascade (coagulation) prevents... | spread of microorganisms, contains
microorganisms and foreign bodies at site of greatest inflammatory cell activity, and provides a framework for repair and healing.
🗑
|
||||
What do the kinin system proteins promote? | vasodilation and increased capillary permeability and induce pain.
🗑
|
||||
Plasmin and Hageman factor (factor XII) interact to.... | activate the clotting cascade, the complement system, and the kinin proteins.
🗑
|
||||
What are some of the inhibitors in the plasma proteins? | carboxypeptidase, histaminases, kinases, and C1 esterase inhibitor.
🗑
|
||||
What are the types of cells involved in the inflammatory process? | mast cells, neutrophils, monocytes/macrophages, eosinophils, NK cells, platelets, and nonleukocytic cells.
🗑
|
||||
What are the names of the 5 biochemical mediators that are responsible for the vascular changes associated with inflammation and for modulating thelocalization and activities of other inflammatory cells? | histamine, chemotactic factors, leukotrienes, prostaglandins, and platelet-activating factor
🗑
|
||||
Inflammatory response is intiated upon... | tissue injury or when PAMPs are recognized by PRRs on cells of the innate immune system.
🗑
|
||||
What do the PRRs include? | TLRs, complement, scavenger, glycan, and mannose receptors
🗑
|
||||
What do the TLRs recognize? | PAMPs, complement receptors recognize complement fragments, and scavenger receptors promote phagocytosis.
🗑
|
||||
What do the central cells of inflammation release? | histamine, chemotactic factors, cytokines, leukotrienes, prostaglandins, growth factors, and other mediators
🗑
|
||||
What do H1 histamine receptors promote? | inflammation
🗑
|
||||
What do H2 histamine receptors do? | inhibit the inflammatory response
🗑
|
||||
What is phagocytosis? | the destruction of microorganisms and cellular debris
🗑
|
||||
What are the stages of phagocytosis? | recognition and adherence, engulfment, lysosomal fusion, and destruction.
🗑
|
||||
phagocytic killing can be... | oxygen-dependent with the production of reactive oxygen intermediates or oxygen-independent with lysosomal enzymes.
🗑
|
||||
Basophils | granulocytes that are very similar to mast cells
🗑
|
||||
Cytokines | soluble factors that regulate the inflammatory response and include interleukins, interferons, and tumor necrosis factor.
🗑
|
||||
What are ILs? | biochemical messengers primarily produced by macrophages and lymphocytes and significantly help regulate the inflammatory response.
🗑
|
||||
What do INFs do? | provide protection from viral infection in uninfected cells
🗑
|
||||
Tumor necrosis factor | is primarily produced by macrophages and promotes inflammation with both local and systemic effects.
🗑
|
||||
Chemokines | synthesized by a number of different cells and induce leukocytes chemotaxis, and are classified as either CC or CXC, depending on their amino acid arrangement.
🗑
|
||||
CC chemokines | affect monocytes, lymphocytes, and eosinophils.
🗑
|
||||
CXCchemokines | generally affect neutrophils.
🗑
|
||||
Complement proteins can be activated in what 3 pathways? | classical, alternative, lectin
🗑
|
||||
Activation of the complement pathway results in: | opsonization, activation of anaphylatoxins, cell lysis, and leukocyte chemotaxis
🗑
|
||||
The clotting cascade prevents... | spread of microorganisms, contains
f) microorganisms and foreign bodies at site of greatest inflammatory cell activity, and provides a framework for repair and healing.
🗑
|
||||
Kinin system proteins promote... | vasodilation and incrased capillary permiability and induce pain.
🗑
|
||||
Neutrophils | the predominant phagocyte of early inflammation. They are attracted to the inflammatory site by chemotactic factors.
🗑
|
||||
Monocytes/Macrophages | arrive at the inflammatory site later than neutrophils and remain longer to clean up debris and promote wound healing
🗑
|
||||
Eos | help control mast cell vascular mediators and defend against parasite infection
🗑
|
||||
NK cells | Recognize and eliminate viruses, cancer cells, and other abnormal cells.
🗑
|
||||
Platelets | interact with the coagulation cascade to stop bleeding and release a number of mediators that promote and control inflammation.
🗑
|
||||
Cytokines | soluble factors that regulate the inflammatory response and include interleukins, interferons, and tumor necrosis factor
🗑
|
||||
Local manifestations of acute inflammation are.... | the result of vascular changes associated with the inflammatory processk including vasodilation and increased cap permeability.
🗑
|
||||
S/S of local manifestations of acute inflammation | redness, heat, swelling, pain
🗑
|
||||
Fx of vascular changes r/t acute inflammation are: | to dilute toxins, carry plasma proteins and leukocyts tothe injury site, carry bacterial toxins and debris away from the site.
🗑
|
||||
Sytemic manifestations of acute inflammation are: | fever, leukocytosis, and increase in levels of circulating plasma proteins.
🗑
|
||||
Chronic inflammation is characterized by... | a dense infiltration of lymphocytes and macrophages. The body may wall off and isolate the inf to protect against tissue damage by formation of a granuloma
🗑
|
||||
Resolutioin (regeneration) | return of tissue to nearly normal structure and fx
🗑
|
||||
Repair | healing by scar tissue formation
🗑
|
||||
Healing by Primary Intention | Inflammatory lesions proceed to resolution, meaning original tissue structure and fx have been restored if little tissue has been lost or injured tissue is capable of regeneration.
🗑
|
||||
Mast cells are found in what parts of the body? | skin, GI system, lining of respiratory system
🗑
|
||||
What are the causes of mast cell activation? | Physical injury,chemical agents, Immunologic means (anaphylatoxins), activation of TLRs by bacteria and viruses, allergic reaction
🗑
|
||||
What is the mast cell's response to stimuli? | release of histamine, chemotactic factors, cytokines
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
j.green5208@gmail.com
Popular Midwifery sets