Phys I Final Flashcards
Most of the change of resistance in airflow in the lungs comes from changes in the primary bronchi diamter
False
Sympathetic innervation of the respiratory system causes bronchoconstriction and decreased secretion from respiratory glands
False
What is the role of the meatuses within the respiratory system?
A. None of the options are associated with the role of meatuses
B. Push the mucus back toward the throat
C. To help the inhaled air become turbulent
D. Assists with vocalization
C. To help the inhaled air become turbulent
What statement is accurate of increased aldosterone secretion?
A. Stimulates the kidneys to increase reabsorption of potassium ions
B. Will cause increased blood volume
C. Stimulates the secretion of anti-diuretic hormone (ADH) to increase water reabsorption
D. Two of the options are accurate
B. Will cause increased blood volume
What statement is accurate?
A. Most of the mucous membrane in the respiratory system is stratified epithelium
B. None of the answers are accurate
C. The Lamina propria is to assist with filtering the inhaled air
D. The mucous membrane within the respiratory system assists with immune system function
D. The mucous membrane within the respiratory system assists with immune system function
What statement is accurate?
A. Blood viscosity can be dependent upon plasma protein concentration
B. As blood vessel length increases, resistance decreases
C. Increased albumin production will lead to increased filtration within the capillaries
D. Baroreceptors respond to changes in MAP
A. Blood viscosity can be dependent upon plasma protein concentration
All of the options are true associated with conchae, except?
A. Assists with filtering the inhaled air
B. Is lined with respiratory epithelium
C. Assists with the warming of inhaled air
D. Assists with vocalization
D. Assists with vocalization
All of the statements are true regarding the trachea, except?
A. A main function is to assist with cleansing of the inhaled air
B. The mucocillary escalator is lined with goblet cells and ciliated pseudostratified squamous epithelial tissue
C. Tracheal cartilage rings provide structural support
D. Trachea is posterior to the esophagus
D. Trachea is posterior to the esophagus
What statement is true?
A. Mucocillary escalator is found in the trachea and helps to warm the inhaled air
B. Increased atrial natriuretic peptide (ANP) secretion leads to increased blood pressure
C. The epiglottis is part of the pharynx
D. Bronchioles have smooth muscle but no cartilage within their structure
D. Bronchioles have smooth muscle but no cartilage within their structure
What statement is true?
A. None of the options are true
B. The lower end of the conducting zone involved with gas exchange
C. The vocal cords assist in blocking the passage of food and liquids into the trachea
D. A respiration system involves maintaining the blood’s pH levels
D. A respiration system involves maintaining the blood’s pH levels
Albumin has role in molecule transport and colloidal pressure within the blood
True
Fibrinogen is the main plasma protein that influences blood viscosity
False
If a baroreceptors detects a decrease in mean arterial pressure, then:
A. Baroreceptor action potential formation increases causing an increase of blood pressure
B. Baroreceptors stimulate the release of aldosterone to increase blood pressure
C. It ultimately stimulates the vasomotor center to activate the sympathetic nervous system
D. It leads to the activation of the parasympathetic nervous system
C. It ultimately stimulates the vasomotor center to activate the sympathetic nervous system
Increased aldosterone secretion could lead to increased hydrostatic pressure leading to increased filtration within the capillaries
True
The hydrostatic pressure increases and the osmotic pressure decreases as blood flows from the arteriole to the venule side of the capillary
False
All of the options are necessary to activate angiotensin II, except?
A. Angiotensin converting enzyme
B. Aldosterone
C. Angiotensinogen
D. Renin
B. Aldosterone
What option best describes pulse pressure?
A. It is the expansion of the blood vessel when you are taking an individuals pulse
B. The variance in systolic pressure from each cardiac cycle
C. The difference between systolic and diastolic pressures
D. The average blood pressure in the arteries during a cardiac cycle
C. The difference between systolic and diastolic pressures
All of the options are true regarding blood, except?
A. Erythrocytes have the highest concentration of formed elements
B. Fibrinogen assists with the hemostasis process
C. Albumin assists with molecule transport
D. Most of the plasma is composed of plasma proteins
D. Most of the plasma is composed of plasma proteins
All of the options are an outcome of angiotensin II activation, except?
A. Increased aldosterone secretion
B. Increased anti diuretic hormone secretion
C. Decreased blood plasma osmolarity
D. Stimulation of the kidneys to decrease reabsorption of sodium ions
D. Stimulation of the kidneys to decrease reabsorption of sodium ions
What option is TRUE regarding blood flow and blood pressure?
A. As the blood vessel compliance decreases, blood pressure increases
B. At rest, most of the blood is located within arterial circulation
C. As body temperature increases, blood flow to the extremities decrease
D. The limbic system has little effect on blood flow and blood pressure
A. As the blood vessel compliance decreases, blood pressure increases
What option is TRUE regarding blood pressure?
A. Auto regulation of blood pressure is commonly controlled by hypoxic levels
B. Aldosterone secretion leads into decreased blood pressure
C. Renin will convert angiotensin I to angiotensin II
D. The mean arterial pressure is measured by subtracting the diastolic pressure from the systolic pressure
A. Auto regulation of blood pressure is commonly controlled by hypoxic levels
What option is TRUE?
A. Erythrocytes carry oxygen by binding oxygen to the globin portion of hemoglobin
B. The most common type of capillary is fenestrated capillaries to allow nutrient exchange
C. Gamma globins assist with osmotic pressure
D. Arterioles are classified as resistance arteries
D. Arterioles are classified as resistance arteries
What statement is accurate regarding blood vessels?
A. Arteries and veins both have a thick tunica media layer providing structural support
B. The tunica interna commonly includes smooth muscle
C. Sinusoid capillaries have large and wide intercellular gaps
D. Distributing arteries (muscular arteries) are primary site of resistance for blood flow
C. Sinusoid capillaries have large and wide intercellular gaps
What statement is TRUE?
A. If vessel length increases, resistance decreases
B. If blood viscosity increases, blood flow increases
C. If vessel radius increases, blood pressure increases
D. If blood volume decreases, blood pressure decreases too
D. If blood volume decreases, blood pressure decreases too
What variable has the largest impact on resistance regarding blood flow?
A. Radius of blood vessel
B. Albumin levels in the plasma
C. Blood Viscosity
D. Blood vessel length
A. Radius of blood vessel
The majority of cells that make up the mucosa membrane in the respiratory system is:
A. Ciliated stratified columnar epithelium
B. Ciliated pseudostratified columnar epithelium
C. Stratified squamous epithelium
D. Simple squamous epithelium
B. Ciliated pseudostratified columnar epithelium
Partial pressure of oxygen decreases from the atmosphere to the alveolar space primarily due to atmospheric air mixing with residual volume
False
Surfactant’s role in respiration is:
A. Decrease the friction in the pleura
B. Increase surface area of lung tissue
C. Allow for repair of the type 1 alveolar cells
D. Increase compliance of lung tissue
D. Increase compliance of lung tissue
The role of carbonic anhydrase is:
a.Ultimately convert carbon dioxide to bicarbonate ion.
b.Assist with the binding of hydrogen ions to hemoglobin.
c.Stabilize the structure of deoxyhemoglobin.
d.Assist with the binding of carbon dioxide to hemoglobin.
a.Ultimately convert carbon dioxide to bicarbonate ion.
All of the statements are true regarding the respiratory zone, except?
a.There are macrophages within the alveoli that assist with immune protection.
b.Cilia and cartilage are commonly found in the respiratory zone.
c.A pulmonary acinus consists of all the structures distal from one terminal bronchial.
d.The type II alveolar cells assist in repair of the type I alveolar cells.
b.Cilia and cartilage are commonly found in the respiratory zone.
All of the options are functions of the conchae, except?
a.Cleansing the inhaled air.
b.Warming inhaled air.
c.All of the options are a function of the conchae.
d.Humidifying the inhaled air.
c.All of the options are a function of the conchae.
All of the options are classified as an accessory inspiration muscle, except?
a.Sternocleidomastoid.
b.Abdominal muscles.
c.Pectoralis minor.
d.Scalenes.
b.Abdominal muscles.
What molecule wouldn’t possibly be bound to deoxyhemoglobin?
a.All of the molecules could be bound to deoxyhemoglobin.
b.Hydrogen ion.
c.2,3 biphosphoglycerate (BPG).
d.Oxygen molecule.
e.Carbon dioxide.
a.All of the molecules could be bound to deoxyhemoglobin.
All of the options are true regarding bronchioles, except?
a.They contain smooth muscle.
b.They contain cilia.
c.They contain cartilage.
d.All of the options are true regarding bronchioles.
c.They contain cartilage.
All of the options are true regarding gas transport, except?
a.Carbaminohemoglobin refers to when carbon dioxide binds to the globin portion of hemoglobin.
b.The Cl- / HCO3- Antiport assists with moving bicarbonate into and out of the erythrocyte.
c.As oxygen binds to deoxyhemoglobin, hemoglobin changes its shape to increase the affinity of another oxygen molecule to bind to another heme group.
d.Bicarbonate formation occurs only in the pulmonary circuit.
d.Bicarbonate formation occurs only in the pulmonary circuit.
What option is TRUE regarding bicarbonate ion?
a.It assists with stabilizing deoxyhemoglobin to allow for the binding of hydrogen ions to the globin portion.
b.It forms carbonic acid which is pumped out of the erythrocyte.
c.It attaches to the globin portion of hemoglobin.
d.None of the options are true.
d.None of the options are true.
All of the statements are true regarding gas exchange, except?
a.Partial pressure of carbon dioxide is higher in the pulmonary capillaries compared to the alveolar carbon dioxide partial pressure.
b.Carbon dioxide’s partial pressure becomes higher as it reaches the respiratory zone.
c.Carbon dioxide primarily depends on its partial pressure gradient for diffusion.
d.Oxygen decreases in partial pressure as travels from the atmosphere to alveoli.
c.Carbon dioxide primarily depends on its partial pressure gradient for diffusion.
All of the statements are true regarding gas exchange, except?
a.Vasodilation of the pulmonary capillaries occurs when ventilation to an area of the lungs increases.
b.All of the options are true regarding gas exchange.
c.Carbon dioxide has a high rate of diffusion due to its partial pressure gradient difference.
d.Increase the alveolar capillary membrane thickness leads to a decrease in oxygen diffusion into the capillaries.
c.Carbon dioxide has a high rate of diffusion due to its partial pressure gradient difference.
What statement is TRUE regarding respiration?
a.The mucociliary escalator is dependent upon stratified squamous epithelium.
b.The type 2 alveolar cells create the surface area for gas exchange.
c.The visceral pleura lines the along the thoracic/rib cage.
d.The external intercostals are involved with the inspiration process.
d.The external intercostals are involved with the inspiration process.
All of the variables are associated with Fick’s law pertaining to the rate of diffusion, except?
a.Solubility of a gas.
b.Concentration of a gas.
c.All of the variables are associated with Fick’s law.
d.Alveolar-capillary thickness.
b.Concentration of a gas.
The process of bronchiole constriction and bronchiole dilation set up the pressure gradients for air to flow in and out of the lungs.
a.True.
b.False.
b.False.
All of the options are true regarding surfactant, except?
Select one:
a.Prevents the lung tissue collapsing.
b.Decreases surface tension in the alveoli.
c.Helps to increase pulmonary compliance.
d.Secreted by alveolar macrophages.
d.Secreted by alveolar macrophages.
What statement is true?
Select one:
a.The bronchioles are the primary location of the conducting zone that can undergo bronchoconstriction and bronchodilation.
b.The conducting and respiratory zones allow for gas exchange.
c.The conducting and respiratory zones have supportive cartilage structures.
d.None of the options are true.
a.The bronchioles are the primary location of the conducting zone that can undergo bronchoconstriction and bronchodilation.
What statement is true?
Select one:
a.The primary bronchi are the primary location that bronchoconstriction and bronchodilation occurs.
b.All of the conducting zone has supportive cartilage to assist with structural support.
c.All the respiratory zone structures have smooth muscle.
d.None of the answers are true.
d.None of the answers are true.