Question

The average heart beats about 100,000 times a day.
(1 point)

True

False
GPT-4o mini
True. The average heart does beat about 100,000 times a day. This is based on an average heart rate of around 60 to 100 beats per minute. If you do the calculation:

60 beats/minute * 60 minutes/hour * 24 hours/day = 86,400 beats/day (at 60 bpm)

and

100 beats/minute * 60 minutes/hour * 24 hours/day = 144,000 beats/day (at 100 bpm).

So, the average is roughly around 100,000 beats per day.
The heart is located inside the ribcage and just to the right of the breast bone.

(1 point)
Responses

True
True

False
GPT-4o mini
False. The heart is located inside the ribcage but is primarily positioned slightly to the left of the breastbone (sternum), not just to the right.
The heart has four chambers and is divided into a right and left side by a muscular wall called the septum.

(1 point)
Responses

True
True

False
GPT-4o mini
True. The heart has four chambers (two atria and two ventricles) and is divided into a right and left side by a muscular wall called the septum.
The two atria hold the blood that circulates away from the heart.

(1 point)
Responses

True
True

False
GPT-4o mini
False. The two atria of the heart hold the blood that is received by the heart (not the blood that circulates away from it). The right atrium receives deoxygenated blood from the body, while the left atrium receives oxygenated blood from the lungs. Blood is then pumped from the ventricles (the lower chambers of the heart) away from the heart to the body and lungs.
The heart has four one-way valves, which open and close with each heartbeat.

(1 point)
Responses

True
True

False
GPT-4o mini
True. The heart has four one-way valves that open and close with each heartbeat to ensure that blood flows in the correct direction through the heart. These valves are the tricuspid valve, pulmonary valve, mitral valve, and aortic valve.
The tricuspid valve and the mitral valve are located between the atria and allow the blood to flow from the atria to the ventricles.

(1 point)
Responses

True
True

False
False
GPT-4o mini
True. The tricuspid valve is located between the right atrium and the right ventricle, and the mitral valve (also known as the bicuspid valve) is located between the left atrium and the left ventricle. Both valves allow blood to flow from the atria to the ventricles.