Question

pregunta 1 (3 puntos) (02.03 lc) the amount of blood pumped by the heart in one minute is called a cardiac output b heart rate c stroke volume d target heart zone pregunta 2 (3 puntos) (02.03 mc) which best describes the role arteries play in cardiorespiratory health and processes? a they carry oxygen and nutrient - rich blood away from the heart. b they carry oxygen - poor blood back to your heart for cleaning. c they emit the electrical impulses necessary to maintain a regular heartbeat. d they use the sugar in the blood to create energy used by the body. pregunta 3 (3 puntos) (02.03 lc) the highest number of beats per minute (bpm) your heart can safely handle during physical activity is called your a maximum heart rate b minimum heart rate c testing heart rate d target heart rate zone

Explanation:

• For Pregunta 1: Cardiac output is defined as the amount of blood pumped by the heart in one minute. Heart rate is beats per minute, stroke - volume is blood per beat, and target heart zone is a range for exercise.
• For Pregunta 2: Arteries carry oxygen - rich and nutrient - rich blood away from the heart. Veins carry oxygen - poor blood back to the heart, the sino - atrial node emits electrical impulses, and cells use sugar for energy, not arteries.
• For Pregunta 3: Maximum heart rate is the highest number of beats per minute the heart can safely handle during physical activity. Minimum heart rate is the lowest resting rate, testing heart rate is not a standard term in this context, and target heart rate zone is a range for effective exercise.

Answer:

• Pregunta 1: a. cardiac output
• Pregunta 2: a. They carry oxygen and nutrient - rich blood away from the heart.
• Pregunta 3: a. maximum heart rate