Upgrade to remove ads
Only $35.99/year

BIO 202 Exam 1 Clicker Questions - Cardiovascular System

Terms in this set (25)

Which of the following is associated with the atria?
A) traceulae carnae
B) pectinate muscles
C) chordae tendinae
D) papillary muscles
E) skeletal muscles
B) pectinate muscles
True or False? The function of the chordae tendinae is to hold the atrioventricular valves open.
False
Which heart chamber would be most affected by cardiac tamponade?
A) right atrium
B) left atrium
C) right ventricle
D) left ventricle
E) all chambers would be equally affected
C) right ventricle
The heart is found in which of the following?
A) thoracic cavity
B) ventral cavity
C) mediastinum
D) pericardium
E) all of the above
E) all of the above
The purpose of pericardial fluid is
A) to provide nutrients to the heart
B) to balance pH around the heart
C) to provide oxygen to the heart
D) to rinse away wastes
E) to reduce friction
E) to reduce friction
External structures that mark the boundaries of atria are called:
A) auricles
B) chordae tendinae
C) trabeculae carnae
D) pectinates
E) septa
A) auricles
Where do you find pectinate muscles?
A) in the walls of atria
B) on the outer surface of the pericardium
C) inside the ventricles
D) attached to the valves
E) in the mediastinum
A) in the walls of atria
Which are grooves on the outside of the heart?
A) trabeculae carnae
B) gyri
C) sulci
D) septa
E) semilunar spaces
C) sulci
Cardiac muscle cells are attached to:
A) calcium deposits
B) microscopic bones
C) the ribs
D) protein fibers
E) sternum
D) protein fibers
True or false? Any abnormal cardiac contraction pattern is called an arrhythmia, including atrial flutters and ventricular fibrillation.
True
A defect in the interatrial septum results in an effectively 3-chambered heart. This can result in:
A) mixing of oxygenated & deoxygenated blood
B) surplus oxygen in the blood
C) instant death
D) vein blockage
E) double systemic circulation
A) mixing of oxygenated & deoxygenated blood
What is the average heart rate in a young, healthy person at rest?
A) 55 bpm
B) 75 bpm
C) 95 bpm
D) 120 bpm
B) 75 bpm
True or false? There is never a period when all 4 heart valves are closed at the same time.
False
The ________ collects blood from all other veins draining the myocardium and returns this blood to the right atrium.
A) great cardiac vein
B) left circumflex artery
C) posterior cardiac vein
D) coronary sinus
E) middle cardiac vein
D) coronary sinus
Death of heart muscle from lack of oxygen is known as:
A) cardiac stenosis
B) cardiac defibrillation
C) angina pectoris
D) cardiac arrest
E) myocardial infarction
E) myocardial infarction
A blockage in the _______ would cause the most damage to the heart.
A) left marginal vein
B) left coronary artery
C) circumflex branch
D) right marginal branch
E) great cardiac vein
B) left coronary artery
Which of the following structures allow one cardiac cell to electronically stimulate another by allowing ion flow across the intercalated disk?
A) fascia adherens
B) gap junctions
C) desmosomes
D) intercellular folds
E) endocardium
B) gap junctions
True or false? The heart does not receive any signals from the nervous system.
False
True or false? When the ventricles relax, blood in the aorta flows back toward the heart, filling the coronary arteries.
True
True or false? Fluid flows from an area of high pressure to an area of low pressure.
True
You are a physician with a patient who is short of breath and has gained 15 lbs in the last week, but does not appear to have gained fat. What might you suspect?
A) atherosclerosis
B) congestive heart failure
C) SA node failure
D) myocardial infarction
B) congestive heart failure
The patient doesn't have any visible edema. Is this congestive heart failure due to an issue with the right or left side of the heart?
A) Right
B) Left
B) Left
Cardiac output is a function of heart rate and...?
A) blood pressure
B) stroke volume
C) cardiac reserve
D) temperature
B) stroke volume
True or false? When the heart contracts to its maximum, all of the blood in the ventricles is ejected.
False
An increase in afterload will lead to a(n) _________ in stroke volume.
A) increase
B) decrease
B) decrease
Sets found in the same folder