Lead Morphology

What is the name of the elongated, tightly packed cells (part E) directly under the upper epidermis?

• Palisade mesophyll

• Guard cell

• Spongy mesophyll

• Lower epidermis

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

What is letter "D" pointing to?

• upper epidermis

• palisade mesophyll

• spongy mesophyll

• bundle sheath

Tags

NGSS.MS-LS1-2

What is the primary function of lead in electrocardiography (ECG)?

• To measure blood pressure

• To record electrical activity of the heart

• To monitor brain waves

• To assess lung function

Which of the following best describes the term 'lead morphology' in the context of ECG?

• The shape and size of the ECG leads

• The arrangement of leads on the patient's body

• The pattern of electrical activity recorded by the leads

• The material composition of the leads

In an ECG, which lead is typically used to provide a view of the heart's electrical activity from the right arm to the left leg?

• Lead I

• Lead II

• Lead III

• aVR

What does a normal P wave morphology indicate in an ECG reading?

• Normal atrial depolarization

• Ventricular hypertrophy

• Myocardial infarction

• Atrial fibrillation

Which lead configuration is used to obtain a standard 12-lead ECG?

• 3 limb leads and 3 chest leads

• 6 limb leads and 6 chest leads

• 4 limb leads and 8 chest leads

• 5 limb leads and 7 chest leads

What is the significance of the QRS complex morphology in an ECG?

• It indicates atrial repolarization

• It represents ventricular depolarization

• It shows the heart rate

• It measures blood oxygen levels

Which of the following changes in lead morphology might indicate a myocardial infarction?

• Inverted T waves

• Prolonged PR interval

• Shortened QT interval

• Increased P wave amplitude

How does the morphology of the T wave in an ECG help in diagnosing heart conditions?

• It indicates the heart's electrical axis

• It shows ventricular repolarization

• It measures atrial contraction

• It assesses blood flow