The Part of the Heart That Initiates Each Beat Is

question 94

Multiple Choice

The part of the heart that initiates each beat is the:

• A)atrioventricular (AV)node
• B)sinoatrial (SA)node
• C)AV bundle
• D)bundle of His

Understand the biochemical basis of digestion tests and the substances they identify.

Describe the absorption process and structures involved in nutrient uptake.

Recognize the building blocks of macromolecules such as proteins, lipids, and carbohydrates.

Comprehend the role of enzymes in the digestion process and the factors affecting enzyme activity.