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

Author Question: Which is the area of specialized nervous tissue in the heart that is known as the pacemaker of the ... (Read 80 times)

asmith134

  • Hero Member
  • *****
  • Posts: 576
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
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
Thanks for the timely response, appreciate it


vickyvicksss

  • Member
  • Posts: 351
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

For a complete list of videos, visit our video library