Exam 8: Cardiac Physiology

Match the terms, labelled a. through f., with the descriptions. (Options may be used more than once or not at all.) -Stroke volume can be increased by increasing end-diastolic volume and _____.

(Multiple Choice)

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Question 241

An increase in parasympathetic activity ____________________ the heart rate.

(Short Answer)

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Question 242

Match the ions, labelled a. through c., with the events being described. (Options may be used more than once or not at all.) -Explosive increase in membrane permeability to _____ brings about the rapidly rising phase of the action potential in contractile cardiac cells.

(Multiple Choice)

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Question 243

A mitral valve damaged by rheumatic fever fails to open completely.What is this called

(Multiple Choice)

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Question 244

Which of these statements describes action potentials in the heart

(Multiple Choice)

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Question 245

Match the EKG features, labelled a. through f., with their correct characteristic. -ventricular depolarization

(Multiple Choice)

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Question 246

The action potential impulse passes through the AV node between the P wave and QRS complex.

(True/False)

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Question 247

An increase in cardiac sympathetic activity ____________________ the permeability of the SA node to K ions.

(Short Answer)

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Question 248

Increased EDV results in decreased stroke volume.

(True/False)

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Question 249

Which of the following normally carries out the fastest rate of autorhythmicity

(Multiple Choice)

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Question 250

Which of these statements refers to the refractory period of cardiac muscle

(Multiple Choice)

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Question 251

Which of these situations will NOT increase stroke volume

(Multiple Choice)

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Question 252

The semilunar valves close to prevent the backflow of blood into the ventricles.

(True/False)

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Question 253

Normally, the stroke volume of the right side of the heart is the same as the stroke volume of the left side of the heart.

(True/False)

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Question 254

Match the anatomical structures, labelled a. through e., with the heart characteristics. (Options may be used more than once or not at all.) -contains Purkinje

(Multiple Choice)

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Question 255

Ventricular ejection occurs once the afterload has been overcome.

(True/False)

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Question 256

The bundle of His and Purkinje system facilitate the rapid spread of the action potential throughout the ventricles.

(True/False)

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Question 257

An increase in the length of the cardiac muscle fibres prior to contraction ____________________ the stroke volume.

(Short Answer)

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Question 258

Match the EKG features, labelled a. through f., with their correct characteristic. -time during which impulse is travelling through the AV node

(Multiple Choice)

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Question 259

When does blood flow occur through the coronary circulation

(Multiple Choice)

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Question 260

Showing 241 - 260 of 267

Match the terms, labelled a. through f., with the descriptions. (Options may be used more than once or not at all.) -Stroke volume can be increased by increasing end-diastolic volume and _____.

An increase in parasympathetic activity ____________________ the heart rate.

Match the ions, labelled a. through c., with the events being described. (Options may be used more than once or not at all.) -Explosive increase in membrane permeability to _____ brings about the rapidly rising phase of the action potential in contractile cardiac cells.

A mitral valve damaged by rheumatic fever fails to open completely.What is this called

Which of these statements describes action potentials in the heart

Match the EKG features, labelled a. through f., with their correct characteristic. -ventricular depolarization

The action potential impulse passes through the AV node between the P wave and QRS complex.

An increase in cardiac sympathetic activity ____________________ the permeability of the SA node to K ions.

Increased EDV results in decreased stroke volume.

Which of the following normally carries out the fastest rate of autorhythmicity

Which of these statements refers to the refractory period of cardiac muscle

Which of these situations will NOT increase stroke volume

The semilunar valves close to prevent the backflow of blood into the ventricles.

Normally, the stroke volume of the right side of the heart is the same as the stroke volume of the left side of the heart.

Match the anatomical structures, labelled a. through e., with the heart characteristics. (Options may be used more than once or not at all.) -contains Purkinje

Ventricular ejection occurs once the afterload has been overcome.

The bundle of His and Purkinje system facilitate the rapid spread of the action potential throughout the ventricles.

An increase in the length of the cardiac muscle fibres prior to contraction ____________________ the stroke volume.

Match the EKG features, labelled a. through f., with their correct characteristic. -time during which impulse is travelling through the AV node

When does blood flow occur through the coronary circulation

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System: Sensory, Autonomic, Somatic

Principles of Endocrinology: The Central Endocrine Glands

The Endocrine Glands

Muscle Physiology

Vascular Physiology

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

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