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