This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which is the area of specialized nervous tissue in the heart that is known as the pacemaker of the ... (Read 76 times)

asmith134

  • Hero Member
  • *****
  • Posts: 576
on: Jun 27, 2018
Which is the area of specialized nervous tissue in the heart that is known as the pacemaker of the heart?
 
  A) Purkinje fibers
  B) sinoatrial node
  C) atrioventricular node
  D) bundle of His

Question 2

The intercostal muscles assist with what activity?
 
  A) raising the shoulder
  B) moving the arm
  C) breathing, coughing, or sneezing
  D) moving the neck


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

yotaSR5

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jun 27, 2018
Answer to Question 1

B
Explanation: A) The Purkinje fibers are not the pacemaker of the heart.
B) Correct
C) The atrioventricular node is not the pacemaker of the heart.
D) The bundle of His is not the pacemaker of the heart.

Answer to Question 2

C
Explanation: A) The intercostal muscles are in the chest, not the shoulder.
B) The intercostal muscles are in the chest, not the arm.
C) Correct
D) The intercostal muscles are in the chest, not the neck.


asmith134

  • Member
  • Posts: 576
Reply 2 on: Jun 27, 2018
Great answer, keep it coming :)

mochi09

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Your heart beats over 36 million times a year.

With their specialized language and activities, surfers are highly recognized as members of a ... With their specialized language and activities, surfers are highly recognized as members of a ...
Drugs for Early and Moderate Heart Failure Drugs for Early and Moderate Heart Failure
Two areas of reduced cortical volume and one area of increased cortical volume observed in people ... Two areas of reduced cortical volume and one area of increased cortical volume observed in people ...
Heart Heart
The Central and Peripheral Nervous System The Central and Peripheral Nervous System
Muscle Tissue Components Muscle Tissue Components
Video: Structures that affect circulation - heart and systolic/diastolic BP

For a complete list of videos, visit our video library