[Answered] The sinoatrial (SA) node initiates the cardiac cycle and is sometimes called the heart's ...

This topic contains a solution. Click here to go to the answer

Author Question: The sinoatrial (SA) node initiates the cardiac cycle and is sometimes called the heart's ... (Read 20 times)

Anajune7

Hero Member
Posts: 574

on: Jul 18, 2018

The sinoatrial (SA) node initiates the cardiac cycle and is sometimes called the heart's _____________.

A. electrode C. generator
B. pacemaker D. alligator clamp

Question 2

The heart is contained within a closed cavity called the ________.

A. mediastinum C. chest cavity
B. pleural space D. thoracic outlet

Need homework help now?

Ask unlimited questions for free

Ask a Question

Marked as best answer by a Subject Expert

leannegxo

Sr. Member
Posts: 374

Reply #1 on: Jul 18, 2018

Answer to Question 1

ANS: B

Answer to Question 2

ANS: A

Anajune7

Member
Posts: 574

Reply 2 on: Jul 18, 2018

Wow, this really help

bigcheese9

Member
Posts: 333

Reply 3 on: Yesterday

Thanks for the timely response, appreciate it

« previous next »

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.