[Answered] Cardiac muscle tissue, or _____, makes up the major portion of the heart. A) myocardium B) ...

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Mollykgkg

Hero Member
Posts: 529

on: Feb 27, 2019

Cardiac muscle tissue, or _____, makes up the major portion of the heart.
A) myocardium
B) pericardium
C) endocardium
D) septum

Question 2

The _____ sends out an electrical impulse that begins and regulates the heartbeat.
A) AV node
B) SA node
C) Purkinje fibers
D) AV bundle

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djpooyouma

Sr. Member
Posts: 325

Reply #1 on: Feb 27, 2019

Answer to Question 1

A

Answer to Question 2

B

Mollykgkg

Member
Posts: 529

Reply 2 on: Feb 27, 2019

Excellent

Kedrick2014

Member
Posts: 359

Reply 3 on: Yesterday

Wow, this really help

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