Deck 10: Circulatory System

Question 1

Young women who have had several spontaneous abortions during their teenage years might have anticardiolipin antibodies. These young women might have

A) thromboses in their renal vein
B) myocardial infarctions as teenagers
C) cardiomyopathy
D) valvular insufficiency
E) rhabdomyosarcoma

Answer 1

A

Question 2

Which of the following molecules is not released into the bloodstream by specialized atrial cardiac muscle cells?

A) atriopeptin
B) atrial natriuretic polypeptide
C) cardiolipin
D) cardionatrin
E) cardiodilatin

Answer 2

C

Question 3

The tetralogy of Fallot is a congenital malformation that does not include

A) ventricular septal defect
B) right atrial hypertrophy
C) pulmonary stenosis
D) overriding aorta
E) right ventricular hypertrophy

Answer 3

B

Question 4

Purkinje fibers

A) are present in the cerebellum
B) initiate heart beat
C) are continuous with the atrioventricular node
D) are continuous with the sinoatrial node
E) are continuous with the atrioventricular bundle

Question 5

Vessels that supply blood to capillary beds are known as

A) distributing arteries
B) arterioles
C) metarterioles
D) thoroughfare channels
E) venules

Question 6

Varicose veins are

A) caused by increased muscle tone
B) due to valvular hypermobility
C) due to increased muscularity of the vessel wall
D) present in the anal region as hemorrhoids
E) constricted veins present usually in the upper extremities

Question 7

Elephantiasis is a disease that affects which of the following?

A) capillaries
B) arteries
C) lymph vessels
D) venules
E) veins

Question 8

Which of the following statements is correct concerning the cardiac skeleton?

A) it is composed of fibrocartilage
B) it is composed of elastic cartilage
C) it forms the interatrial septum
D) it forms an electrical discontinuity between the two atria
E) it forms an electrical discontinuity between the atria and ventricles

Question 9

Capillaries are slender vessels whose lumina are just wide enough to permit red blood cells to pass through them. Capillaries with fenestrae

A) are continuous capillaries
B) are sinusoidal capillaries
C) have no diaphragm over their fenestrae in the glomerulus
D) are located in the central nervous system
E) are located in skeletal muscle

Question 10

A sac-like dilation of a vessel (usually an artery) wall, known as an aneurysm, is not caused by

A) Marfan syndrome
B) syphilis
C) gonorrhea
D) Ehlers-Danlos syndrome
E) atherosclerosis

Question 11

A child is seen by her pediatrician and is found to have rheumatic fever. The doctor informs the parents that the possible consequence of this disease is

A) myocardial infarction
B) occlusion of the coronary sinus
C) patent foramen ovale
D) scarring of the mitral valve
E) ventricular septal defect

Question 12

Fenestrated membranes are located in

A) the tunica adventitia
B) the tunica intima
C) muscular arteries
D) conducting arteries
E) arterioles

Question 13

High endothelial venules are located in the

A) medulla of lymph nodes
B) cortex of lymph nodes
C) paracortex of lymph nodes
D) red pulp of the spleen
E) white pulp of the spleen

Question 14

Weibel-Palade bodies of blood vessels

A) are located in the smooth muscles of the tunica media
B) are located in the fibroblasts of the tunica media
C) contain von Willebrand factor
D) contain endothelial relaxing factor (NO)
E) contain prothrombin