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 90 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
Gracias!

irishcancer18

  • Member
  • Posts: 310
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Abnormal Growth in Mice Mammary Tissue Abnormal Growth in Mice Mammary Tissue
Aquilia Area in Color: Aquilia Area in Color:
Summation of Heart Sounds, Intensified A2, Diminished A2 Summation of Heart Sounds, Intensified A2, Diminished A2
The Autonomic Nervous System and Emotional Responding The Autonomic Nervous System and Emotional Responding
Third-degree heart block. Third-degree heart block.
Stripping effleurage over the shoulder area. Use the thumbs sliding away from each other to apply a ... Stripping effleurage over the shoulder area. Use the thumbs sliding away from each other to apply a ...
Video: Spermatogenesis Animation

For a complete list of videos, visit our video library