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 76 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
Great answer, keep it coming :)

flexer1n1

  • Member
  • Posts: 373
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Structure of plasmodesmata Structure of plasmodesmata
The structure of T2 bacteriophage The structure of T2 bacteriophage
Neptune’s Banded Structure Neptune’s Banded Structure
Heart Failure Left side Heart Failure Left side
A model for the RuvA-RuvB-Holliday junction structure A model for the RuvA-RuvB-Holliday junction structure
Structure of a Synovial Joint Structure of a Synovial Joint
Video: Morphology of a tomato plant

For a complete list of videos, visit our video library