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

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Author Question: The sinoatrial (SA) node initiates the cardiac cycle and is sometimes called the heart's ... (Read 48 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

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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

TYSM

strudel15

Member
Posts: 324

Reply 3 on: Yesterday

YES! Correct, THANKS for helping me on my review

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