Chapter 21 review
Which statement about capillaries is NOT TRUE?
3types in different organs Materials exchange Protein, fluid, nutrition,gases in and out Large, tiny, no holes
. Normally the blood pressure in the pulmonary capillary bed is about:
6mm. 30mm in tissue in lung
. Which of these vessels is LEAST in number in the human body?
Artery
Which of the following statement about BV pressure is "true"?
Artery always high- 100 to 120 Venues -30 to 40 Capillaries- 30 to 20 Vena cava- 0
. "Tissue fluid" is found in the
Between cells
If someone is performing a "phlebotomy", he/she is:
Blood drawn from vein
Normally, there is no fluid in the tissue spaces of the lungs because
Blood pressure is very low
Which statements best describes arteries?
Carry blood away from heart
Which statement is NOT TRUE of veins?
Deoxygenated blood,carries blood to heart,thin walls,
Which of the following best describes arteries?
Describes arteries
The aorta and other arteries have thick walls containing large quantities of
Elastic fibers
Pulsations exist in the circulatory system because:
Elasticity of artery wall
The fact that veins hold more blood than arteries is/are due to
Larger Lyman, less elastic, more branches
. If arterial blood pressure falls markedly, which of the following would you expect to occur?
Less fluid out of capillary and into tissues
Which of the following organs or tissues receive the greatest portion of the total blood flow when the body is at rest?
Liver
. Under normal conditions, capillary blood pressure is always:
Lower than artery pressure
Plasma proteins that remain in the blood capillaries help best to
Maintain blood polarity- osmotic pressure is stable
. The vessel which helps to regulate blood pressure the best is/are:
Muscular arterial
Given the following values, determine the direction of flow of materials across the capillary bed. Blood colloidal osmotic pressure = 25 MmHg Interstitial osmotic pressure = 1 MmHg Blood hydrostatic pressure = 60 MmHg Interstitial hydrostatic pressure = 15 MmHg
Negative number- fluid goes back to the blood vessels Positive number-goes out
In the sequence of vessels leading away from the heart, which of the following is the most accurate description?
Pulmonary circulation Pulmonary trunk , pulmonary artery ,arterial, lungs Systematic circulation Aorta,artery, artery becomes arterials, arterials become capillaries, capillaries become venue, venue become vein, vein goes back to vena cava
. The ductus arteriosus allows fetal blood to move from the:
Pulmonary trunk into aortic arch
. Arteries are characterized by all of the following except:
Smaller lumen,higher blood pressure,less branches,no valves,carry blood away from heart
The first vessel(s) to branch from the aorta is (are) the
Third vesicle- left acromin coratic
Which of the following is a TRUE statement?
Veins, arteries and capillaries is true
Which of the following is/are true?
Veins, arteries and capillaries is true
