Shared Flashcard Set

Details

Cardiovascular System
Chapter 20: The Heart (Online Self Test)
20
Biology
Undergraduate 2
05/15/2013

Additional Biology Flashcards

 


 

Cards

Term

The coronary sulcus is a groove on the outside of the heart that marks the boundary between the

 

A. Left and right atria

B. Left and right ventricles

C. Atria and ventricles

D. Aorta and the pulmonary trunk

Definition
C. Atria and ventricles
Term

In which choice are the components of the cardiac conduction system listed in the correct order in which  they conduct the cardiac impulse?

 

A. SA node, AV bundle, AV node, Purkinje fibers

B. SA node, AV node, AV bundle, Purkinje fibers

C. AV node, AV bundle, SA node, Purkinje fibers

D. AV node, SA node, Purkinje fibers, AV bundle

Definition
B. SA node, AV node, AV bundle, Purkinje fibers
Term

The plateau phase of the cardiac contractile cell action potential is caused by

 

A. Ca inflow

B. CI inflow

C. K outflow

D. Na outflow

Definition
A. Ca inflow
Term

Conduction of the cardiac impulse is slowed as it passes through the AV node. This allows time for

 

A. Ventricles to start contracting before the atria finish contracting

B. Atria  to contract completely before the ventricles start to contract

C. SA node to catch up

D. Last ventricular contraction to finish

Definition
B. Atria to contract completely before the ventricles start to contract
Term

The first heart sound (lubb) is due to 

 

A. Closing of Atrioventricular valve

B. Closing of semilunar valve

C. Opening of Atrioventricular valve

D. Opening of semilunar valve

 

Definition
A. Closing of Atrioventricular valve
Term

Pressure in the ventricles would be highest during

 

A. Atrial diastole

B. Atrial systole

C. Ventricular diastole

D. Ventricular systole

Definition
D. Ventricular systole
Term

The alternate contraction and relaxation of the atria and ventricles are referred to as the

 

A. Cardiac output

B. Coronary circulation

C. Cardiac conduction system

D. Cardiac cycle

Definition
D. Cardiac cycle
Term

Stroke volume times heart rate equals

 

A. Blood pressure

B. Afterload

C. End systolic volume

D. Cardiac output

 

Definition

D. Cardiac output

 

Term

Steven's cardiac output at rest is 5 L/min. When he is exercising strenuously it is 20 L/min. What is Steven's cardiac reserve?

 

A. 4 L/min

B. 15 L/min

C. 25 L/min

D. 100 L/min

Definition
A. 4 L/min
Term

In response to increased activity, the heart would be called upon to ______the amount of blood pumped, and this would be caused by signals from _____fibers. 

 

A. increase;sympathetic

B. increase; parasympathetic

C. decrease; sympathetic

D. decrease; parasympathetic

Definition
A. increase; sympathetic
Term

A resting heart rate of 40 beats/min indicates the person has

 

A. Tachycardia

B. Bradycardia

C. Normal heart rate

D. Abnormal heart rate

Definition
B. Bradycardia
Term

The heart valves

 

A. Contract to pump blood through the heart

B. Separate  the left and right sides of the heart

C. Cause the heart sounds when they contract

D. Prevent blood from flowing backwards through the heart

 

Definition
D. Prevent the blood from flowing backwards through the heart
Term

Damage to which of the following parts of the brain would cause the body to have less control over cardiac activity?

 

A. Cerebral cortex

B.  Thalamus

C. Basal nuclei

D. Medulla oblongata

Definition
D. Medulla oblongata
Term

All cardiac veins empty into the ______, which empties into the __________. 

 

A. Coronary sinus; left atrium

B. Coronary sinus; right atrium

C. Great cardiac vein; right atrium

D. Great cardiac vein; superior vena cava

Definition
B. Coronary sinus; right atrium.
Term

The right side of the heart acts as a pump for the 

 

A. Pulmonary circulation

B. Systemic circulation

C. Coronary circulation

D. Hepatic portal circulation

Definition
A. Pulmonary circulation
Term

An auricle is

 

A. A valve located in a blood vessel

B. An extension of the atrial wall

C. Part of a heart valve

D. A blood vessel that carries blood away from the heart

 

 

Definition
B. An extension of the atrial wall
Term

The pericardial cavity is between the

 

A. Fibrous pericardium and parietal pericardium

B. Left atrium and left ventricle

C. Visceral pericardium and parietal pericardium

D. Endocardium and myocardium

Definition
C. Visceral pericardium and parietal pericardium
Term

Blood leaving the left ventricle goes through which of the following valves?

 

A. Bicuspid

B. Tricuspid

C. Pulmonary semilunar valve

D. Aortic semilunar valve

Definition
D. Aortic semilunar valve
Term

Fossa ovalis is a small shallow depression in the

 

A. Parietal pericardium

B. Interventricular septum

C. Interatrial septum

D. Atrioventricular septum

Definition
C. Interatrial septum
Term

Contraction of a ventricular chamber is called

 

A. Diastole

B. Diastasis

C. Hypertrophy

D. Systole

Definition
D. Systole
Supporting users have an ad free experience!