Which of the following is true?*
5 points
The waves in the ECG cycle represent the number of heartbeats.
The time of electrical recovery in the ventricles before a new heartbeat starts is
known as ventricular depolarization.
Electrical impulses in the heart cause the muscle to contract.
Muscle tissue in most body organs are able to stimulate their own contractions.

Answers

Answer 1

Answer:

1. Electrical impulses in the heart cause the muscle to contract.

2. To keep the blood flowing in only one direction

Explanation:

In the first question, the correct answer is ''Electrical impulses in the heart cause the muscle to contract''. Every muscle in our body contracts because of electrical impulses and this is also true for our hearts. Or any hearts in nature that we know of.

In the second question, the answer is ''To keep the blood flowing in only one direction''. We have those valves and without them, we wouldn't be able to function as we do.

Related Questions

what is a characteristic of a person with positive mental well being

Answers

Answer:

Emotional stability and feeling calm and able to manage emotions. resilience: the ability to cope with the stresses of daily life. optimism: feeling positive about your life and future. self-esteem: feeling positive about yourself.

Explanation:

pls help me on this im confused

Answers

I could talk to my parents before a situation like this happens. we could go over rules so I would know it’s safe to tell them these types of things. After an incident happens, I could ask them to hear me out and attempt to understand my situation.

I hope this helps!!

Why does my legs itch whenever I'm washing dishes?

Answers

Answer:

You probably are allergic to the soap

Explanation:

Answer:

I guess you have a circulation problem. Try to stand up with your knee in a small angle, do not stand up the legs straight. Also, try to wash the dishes more often, as it last for a shorter time! And... regular exercices.

Where to store chemical away from food

Answers

Answer:

Store chemicals away from food storage and contact areas. Chemicals can easily get into food or spill onto food-contact surfaces if they are stored incorrectly. A separate area should be used for chemical storage to make sure your food and equipment stay safe. Label all chemicals clearly.

Explanation:

Which is a characteristic of a relable weight loss plan?
It suggests getting a physiclan's input before starting.
It requires the purchase of special supplements or equipment.
It encourages dieters to avoid the foods that friends and family eat.
It reduces calories below 1,000 calories per day.

Answers

Answer:

Explanation:

The role of repressed childhood conflicts in personality disorder is most clearly emphasized by the

Answers

psychoanalytic perspective.

how a healthy body is link to a healthy mind and soul?

Answers

Answer:

In other words, our minds can affect how healthy our bodies are! On the other hand, what we do with our physical body (what we eat, how much we exercise, even our posture) can impact our mental state (again positively or negatively). This results in a complex interrelationship between our minds and bodies.

educated, slender, and attractive, Julie seems to have it all. She has a PhD, an interesting career, and good friends. So everything's great, right?

Not exactly. Julie also has diabetes. And while she loves her job, she feels anxious about running a business. She often gets angry at herself, and snaps at others for small mistakes. Even scarier, despite careful monitoring of her blood sugar, she finds herself in a coma once or twice a month. What's going on?

It turns out that despite Julie generally healthy habits, her anxiety prevents her from paying attention to the cues her body gives her when her blood sugar is too low.

On her doctor's advice, Julie tries Mindfulness Based Stress-Reduction (MBSR) classes along with her regular diabetes care program. The MBSR practices help Sylvia slow down and actually pay attention to her body.

Julie begins to notice when her blood sugar is dropping, so she can eat to prevent herself from going into a diabetic coma. She also finds it easier to control her diabetes with insulin, probably because reducing her anxiety helps reduce her stress hormones. Her anger, a product of her stress, also fades away. Julie's story is a great example of what we call the mind-body connection. This means that our thoughts, feelings, beliefs, and attitudes can positively or negatively affect our biological functioning. In other words, our minds can affect how healthy our bodies are!

On the other hand, what we do with our physical body (what we eat, how much we exercise, even our posture) can impact our mental state (again positively or negatively). This results in a complex interrelationship between our minds and bodies. What are body-mind therapies?
Related to mind-body therapies are therapies that use the body to affect the mind, such as yoga, tai chi, qigong, and some types of dance (these are sometimes called body-mind therapies). Ultimately mind-body and body-mind therapies are interrelated: the body affects the mind, which in turn impacts the body (and the mind.) important to note that "mind" is not synonymous with brain. Instead, in our definition, the mind consists of mental states such as thoughts, emotions, beliefs, attitudes, and images. The brain is the hardware that allows us to experience these mental states.

Mental states can be fully conscious or unconscious. We can have emotional reactions to situations without being aware of why we are reacting. Each mental state has a physiology associated with it—a positive or negative effect felt in the physical body. For example, the mental state of anxiety causes you to produce stress hormones.

Many mind-body therapies focus on becoming more conscious of mental states and using this increased awareness to guide our mental states in a better, less destructive direction.

pls help!!! asap!!! <3
The cardiac muscle contractions are regulated by electrical impulse (mini electrical shock)
a. True
b. False

Answers

Answer:

true

Explanation:

I’m pretty sure it’s true

What system is involved in helping the process of blood doping happened in our body? Digestive or Respiratory or Circulatory

Answers

Answer:

Circulatory

Explanation:

pls help me on this!!!

Answers

Answer:

i could ask them if they could listen to me before they say anything about the situation. then i can tell them what it was i did wrong(maybe expand on this a little more if you’d like). Lastly, i would ask them how to help me get through my problem.

A technology or lab instructor needs to know that you have downloaded information for your online class to a school computer

Answers

Answer:

true

Explanation:

Answer:

TRUE

Explanation:

finished the test

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