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

Author Question: Which structure is considered the pacemaker of the heart? a. AV node b. SA node c. bundle of His ... (Read 79 times)

cookcarl

  • Hero Member
  • *****
  • Posts: 539
on: Jul 18, 2018
Which structure is considered the pacemaker of the heart?
 a. AV node
  b. SA node
  c. bundle of His
  d. Purkinje fibers

Question 2

Which statement regarding the anatomical placement of the heart is CORRECT?
 a. It is positioned exactly midline in the thoracic cavity.
  b. It is positioned in the thoracic cavity with nearly its entirety on the left side.
  c. It is positioned in the mediastinum with approximately 2/3 of the heart on the left side.
  d. It is positioned in the mediastinum with approximately 2/3 of the heart on the right side.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Chocorrol77

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jul 18, 2018
Answer to Question 1

b

Answer to Question 2

c


cookcarl

  • Member
  • Posts: 539
Reply 2 on: Jul 18, 2018
YES! Correct, THANKS for helping me on my review

kilada

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

The lymph node structure. The lymph node structure.
Structure of the Dnmt3a heterotetramer complexed with a DNA 25-mer Structure of the Dnmt3a heterotetramer complexed with a DNA 25-mer
Conduction system of the heart Conduction system of the heart
Summary of the structure of DNA Summary of the structure of DNA
Structure and function of human teeth. Structure and function of human teeth.
Structure of ATP Structure of ATP
Video: Uterine (menstrual) cycle - phases

For a complete list of videos, visit our video library