A & P II
Paul has a horrible chainsaw accident and cuts several major blood vessels in his head and neck. As a result of this injury, you would expect to observe all of the following except
an increased secretion of renin by the kidney
Which specific plasma proteins would you expect to be elevated during an infection? (Module 17.2C)
immunoglobulins
Each of the following will lead to a decrease in blood pressure except
release of renin.
The extrinsic pathway of coagulation is initiated by the
release of tissue factor (Factor III) by damaged endothelium.
The ________ is the kidney's sole blood supply.
renal artery
Branches off the aortic arch include all of the following except
right subclavian artery
Part complete If the pacemaker cells in the SA node become more permeable to potassium ions,
the heart rate will decrease
Most of the protein factors that are required for clotting are synthesized by
the liver
The following are structural components of the conducting system of the heart.1. Purkinje fibers2. AV bundle3. AV node4. SA node5. bundle branchesThe sequence in which excitation would move through this system is which of the following?
4, 3, 2, 5, 1
The following is a list of vessels and structures that are associated with the heart.1. right atrium2. left atrium3. right ventricle4. left ventricle5. venae cavae6. aorta7. pulmonary trunk8. pulmonary veins
5, 1, 3, 7, 8, 2, 4, 6
Define heart failure. (Module 18.16A)
Heart failure is a condition where the heart can no longer meet the oxygen and nutrient demands of peripheral tissues
Abnormally slow depolarization of the ventricles would most change the shape of the ________ in an ECG tracing.
QRS complex
Why is RhoGAM administered to pregnant Rh women ? (Module 17.8B)
RhoGAM contains anti-Rh antibodies, which circulate in the mothers' bloodstream to destroy any fetal RBCs there, thereby preventing the mother from making antibodies against the developing fetus's red blood cells
Part complete Why is the left ventricle more muscular than the right ventricle? (Module 18.6A)
The left ventricle must generate enough force to propel blood through the systemic circuit, whereas the right ventricle must generate only enough force to propel blood the short distance from the heart to the lungs in the pulmonary circuit.
ADH and aldosterone secretion are part of the body's long-term compensation for
a serious hemorrhage
Blood flow to a tissue will increase if the level of carbon dioxide at the tissue decreases.arterioles dilate.level of oxygen at the tissue increases.veins constrict.
arterioles dilate
Each of the following arteries is a component of the cerebral arterial circle except the
basilar artery.
The radial and ulnar veins fuse to form the ________ vein.
bracial vein
Identify the arteries labeled "9."
common carotid
The P wave of the electrocardiogram is a signal from
depolarization of the atria
In cardiac muscle, calcium ions
enter the cell through slow voltage gated ion channels
Tissue factor (Factor III) is a factor in the ________ pathway.
extrinsic
The external iliac artery becomes the ________ artery as it enters the lower limbs.
femoral
Part complete In cardiac muscle, the fast depolarization phase of the action potential is the result of ________ membrane permeability to ________ ions.
increased; sodium
The two common iliac veins form the
inferior vena cava
Name the four chambers of the heart. (Module 18.1C)
left atrium, left ventricle, right atrium, right ventricle
Part complete Identify two veins that carry blood away from the stomach. (Module 19.21C)
left gastro-epiploic and right gastro-epiploic veins
Identify the major branches of the inferior vena cava. (Module 19.20B)
lumbar, gonadal, hepatic, renal, adrenal, and phrenic veins
The vein in the arm commonly sampled for blood by venipuncture is the
medial cubital vein
________ are large phagocytic white cells that spend most of their time outside the blood as fixed and free phagocytic cells
monocytes
Figure 18-2 What does the circle label "5" indicate on the graph?
peak systolic pressure
The cavity that contains only the heart is the
pericardial cavity
An elevated hematocrit value is termed
polycythemia.
Which of the following break(s) the rule that arteries carry oxygenated blood away from the heart?
pulmonary arteries
Venoconstriction ________ the amount of blood within the venous system, which ________ the volume in the arterial and capillary systems.
reduces; increases
Which chamber of the heart receives blood from the systemic circuit? (Module 19.1C)
right atrium
Blood returning to the heart from the systemic circuit first enters the
right atrium.
The marginal branch and posterior interventricular branch are branches of the
right coronary artery
The fusion of the brachiocephalic veins forms the
superior vena cava.
These vessels hold the largest percentage of the blood supply.
systemic venous system
Angiogenesis refers to
the growth of new blood vessels from preexisting vessels.
The most abundant component of plasma is
water
________ are multiple arteries that fuse in order to serve a single capillary network.
Collaterals
first 2 branches of the common iliac 19.22
an external iliac artery and an internal artery
Part complete Why is it important for impulses from the atria to be delayed at the AV node before they pass into the ventricles? (Module 18.12C)
The av node will slow the impulses of the sa node to keep the heart rate within a normal maximum heart rate.
If the cells of the SA node failed to function, how would the heart rate be affected? (Module 18.12B
The heart would beat slower because the AV node would be the pacemaker.
Describe the roles of the natriuretic peptides. (Module 19.10C)
The roles of these peptides are to trigger responses whose combined effects are to decrease blood volume and decrease blood pressure.
Name the two large veins that collect blood from the systemic circuit. (Module 19.16B
The superior and inferior vena cava
What factors are involved in the formation of varicose veins? (Module 19.4D)
Varicose veins form when the vein walls weaken and the valves fail so blood begins to pool in the veins
Which of the following layers of a vessel contains collagen fibers with scattered bands of elastic fibers?
tunica media