The cardiac electrical impulse normally begins spontaneously in the SA node because

Medicine

1 answer:

Sophie [7]2 years ago

4 0

Answer:

The correct answer will be option-D.

Explanation:

Conduction system of the heart contains autorhythmic fibres which are usually Nodes of the heart. There are two types of nodes-Sinoatrial node and the atrioventricular node.

The sinoatrial node is known as the pacemaker of the heart as it maintains the pace of the heartbeat due to its efficiency if higher depolarization than other node and conduction cells like a bundle of His and Purkinje fibres.

Since depolarization causes a contraction in the muscle cells, therefore, heartbeats and thus option-D is the correct answer.

You might be interested in

Why is it important that edge of the cuff is above the antecubital space

Anika [276]

Answer:

It is important that the edge of the cuff is above the antecubital space in order to fasten it evenly and snugly.

Explanation:

The question above is related to "getting the blood pressure of a person accurately."

After preparing the patient, you have to apply the cuff to the patient at the level of his heart. Make sure that the cuff is completely deflated. The cuff's "inflatable bladder" should be placed where the brachial artery is and its lower edge should be placed above the "antecubital space." This can secure the cuff in place. The gauge should then be adjusted, so you can read it well.

3 0

2 years ago

Who has more inner struggles? Male or female

NNADVOKAT [17]

Answer:

males

Explanation:

6 0

2 years ago

Read 2 more answers

Which example best demonstrate the use of critical thinking

Svetach [21]

There are not answer choices?

4 0

2 years ago

When interviewing the patient about MOI, the most appropriate question might

shtirl [24]

1. why are you considering leaving your current job?
2. where do you see yourself in 4 years?
3. what interested you in a position with MOI?

those are just a couple i’ve seen :)

8 0

2 years ago

You examine a 12-month-old girl for a health supervision visit. She is asymptomatic, and the mother has no complaints. The famil

Llana [10]

Answer: Make changes in the home

Explanation:

Based on the information given, the best next step is to make changes in the home. This is still a mild elevation which occurs typically from level 10 to 20.

In this case, treating with chelation isn't needed. The assistance of public health and the education for the parents are important in this case. The family should also move out of the lead-contaminated apartment as this isn't good for the child.

3 0

2 years ago