Midterm exam Flashcards
_______ can move substances against their concentration gradients.
a. Active transport
b. facilitated diffusion
c. Osmosis
d. Solvents
Active transport
Movement of water and a solute through a membrane due to higher pressure on one side of the membrane than the other is:
a. diffusion
b. filtration
c. osmosis
d. hydrostatic pressure
Filteration
All of the following are characteristics of inflammation except:
a. warmth
b. palor
c. pain
d. erythema
Palor
A(n) _______ solution has the same osmolality as normal body fluids.
a. hypertonic
b. hypotonic
c. aqueous
d. isotonic
Isotonic
Which of the following is an example of a physical barrier?
a. antibacterial fatty acids
b. earwax
c. epithelial cells
d. lysozymes in tears
Epithelial cells
Which statement is true regarding the inflammatory response?
a. Inflammatory response generates a nonspecific response
b. Inflammatory response is the first line of defense
c. Inflammatory response relies on cellular components only
d. Inflammatory response is specific
Inflammatory response generates a non-specific response
Which of the following is the most common cause of cellular injury?
a. Hypoxia
b. Free radical induced injury
c. Mechanical factors
d. Chemical injury
a. Hypoxia
Which of the following is the best description of the term chemotaxis?
a. Uses the second messenger system
b. Cellular signal affecting the cell of origin
c. Movement of cells along a chemical gradient
d. Ligands bind with receptors, triggering a second reaction
Movement of cells along a chemical gradient
\_\_\_\_\_\_ is primarily responsible for the plasma oncotic pressure Select one: a. Sodium b. Chloride c. Potassium d. Albumin
d. Albumin
The most dangerous effect of hyperkalemia is its action the: Select one: a. Kidneys b. Heart c. Lungs d. Brain
b. Heart
Which statement is true regarding autosomal dominant gene transmission?
Select one:
a. The affected parent transmits the gene to one half of his or her children.
b. The affected gene is found in males only.
c. Generations are skipped for transmission.
d. Females will transmit the disease more often than males.
a. The affected parent transmits the gene to one half of his or her children.
Which of the following is NOT a factor that determines how a tumor spreads? Select one: a. rate of growth b. body temperature c. degree of differentiation d. anatomic barriers
b. body temperature
All of the following statements regarding melanoma are true except:
Select one:
a. Even in the early stages, melanoma is not curable.
b. Individuals with a history of three or more sunburns are at risk for melanoma.
c. Individuals with fair skin and hair color are at risk for melanoma.
d. Melanoma may suddenly appear without warning.
a. The correct answer is: Even in the early stages, melanoma is not curable.
It is true that hyperchloremia:
Select one:
a. Occurs with a deficit of sodium
b. Occurs with an excess of bicarbonate
c. Has specific symptoms such as increased thirst
d. Requires treatment of underlying disease
d. Requires treatment of underlying disease
An organelle that is responsible for the metabolism of cellular energy is: Select one: a. golgi complex b. mitochondrion c. endoplasmic reticulum d. nucleolus
b. mitochondrion
Neutrophils are:
Select one:
a. agranular
b. the predominant phagocytes of early inflammation
c. the largest cells in the body
d. enter the site of injury after lymphocytes and macrophages
b. the predominant phagocytes of early inflammation
Common causes of edema formation (increased filtration of fluid from capillaries into surrounding tissues) include all of the following except: Select one: a. Decreased plasma oncotic pressure b. Decreased hydrostatic pressure c. Increased capillary permeability d. Lymphatic obstruction
b. Decreased hydrostatic pressure
The function of the clotting system in injury or inflammation includes all of the following except:
Select one:
a. Prevents the spread of infection to adjacent tissues
b. Traps microorganisms at the site of greatest inflammatory cell activity
c. Prevents clot formation at the site of injury
d. Provides a framework for future repair and healing
c. Prevents clot formation at the site of injury
Which statement regarding viruses is true?
Select one:
a. Viruses are less common than bacterial infections.
b. Viruses actively produce exotoxins.
c. Viruses contain all of their genetic information in ribonucleic acid (RNA).
d. Viruses bypass many defense mechanisms by developing intracellularly.
d. Viruses bypass many defense mechanisms by developing intracellularly.
A patient being is being evaluated in the urgent care clinic and is found to have hypokalemia. Which of the following statements is TRUE regarding hypokalemia?
Select one:
a. Hypokalemia occurs when the serum level is below 135 mEq/L
b. One cause of hypokalemia is diabetic ketoacidosis.
c. Dietary causes of low potassium are common
d. Diuretics do not cause hypokalemia
b. One cause of hypokalemia is diabetic ketoacidosis.
Which is a foreign or non-self substance? Select one: a. Immunoglobulins b. Antigens c. Lymphocytes d. Antibodies
b. Antigens
Which two systems regulate the complex emotional response to pain? Select one: a. Frontal and cerebellar lobes b. Limbic and reticular systems c. Thalamus and brainstem d. Midbrain and nuclei of thalamus
b. Limbic and reticular systems
Which of the following is a benefit of fever?
Select one:
a. Decreases lymphocytic transformation
b. Diminishes the response of phagocytosis
c. Decreases calcium concentration
d. Deprives bacteria of a food source
d. Deprives bacteria of a food source
All of the following statements are true regarding sleep patterns in older adults except: Select one: a. Sleep time is decreased b. Sleep initiation is delayed c. Sleep maintenance is impaired d. Sleep is deeper
d. Sleep is deeper
All of the following are characteristics of Alzheimer disease except: Select one: a. Rapid onset b. Memory loss c. Increased irritabliity d. Anxiety and depression
a. Rapid onset
Air pollution is associated with cancer. Which of the following statements pertaining to this association is NOT true?
Select one:
a. There is good evidence that air pollution is associated with cancers other than lung and childhood cancers.
b. Even modest contamination of the atmosphere can result in inhalation of appreciable doses of pollutants.
c. Radon exposure can occur in underground mines and in homes.
d. Indoor air pollution is considered worse than outdoor air pollution.
a. There is good evidence that air pollution is associated with cancers other than lung and childhood cancers.
Which statement is true regarding stress and the immune system?
Select one:
a. Seasonal allergies are related to stress.
b. Cardiovascular disease is one condition that is related to stress.
c. The level of proinflammatory cytokines is decreased.
d. Negative emotions cause few alterations in cytokine production.
b. Cardiovascular disease is one condition that is related to stress.
All of the following statements regarding fever are true except:
Select one:
a. Endogenous pyrogens may produce fever.
b. The body’s central thermostat is the hypothalamus.
c. Fever is a failure of the body to regulate temperature.
d. Fever is a possibly helpful defense.
c. Fever is a failure of the body to regulate temperature.
Which term describes the type of immunity that occurs when preformed antibodies are transferred from a donor to a recipient? Select one: a. Passive b. Active c. Memory d. Cellular
a. Passive
An individual sustains a spinal cord injury that results in paralysis below the waist. Which of the following describes this condition? Select one: a. Quadriplegia b. Hemiplegia c. Paraplegia d. Diplegia
c. Paraplegia
The sleep stage in which dreaming occurs is: Select one: a. Slow wave or N3 b. NREM c. REM d. All of the above
c. REM
The most common risk factor for stroke is: Select one: a. Hypertension b. Factor V Leiden c. Obesity d. Alcohol consumption
a. Hypertension
Inflammation from brain injury causes \_\_\_\_\_\_ edema. Select one: a. neurogenic b. vasogenic c. intracellular d. None of the above
b. vasogenic
The first line of defense against microorganisms is: Select one: a. phagocytic cells b. antibodies c. anatomic barriers d. inflammation
d. anatomic barriers
A \_\_\_\_\_ gene will be expressed only if it’s present in two copies. Select one: a. dominant b. recessive c. sex-linked d. all of the above
b. recessive
Seizure initiation involves high-frequency firing bursts in a group of neurons that become \_\_\_\_\_\_\_\_. Select one: a. hypersynchronized b. severed c. damaged d. stunned
a. hypersynchronized
All of the following are characteristic of a hormone except:
Select one:
a. Hormones have specific rates and rhythms of secretion.
b. Hormones operate independent of feedback systems.
c. Hormones affect only cells with appropriate receptors.
d. Hormones are excreted by the kidneys.
b. Hormones operate independent of feedback systems.
Which of the following is secreted by the posterior pituitary? Select one: a. Oxytocin b. Calcitonin c. Thyroid stimulating hormone (TSH) d. Parathyroid hormone (PTH)
a. Oxytocin