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 44 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
Gracias!

shailee

  • Member
  • Posts: 392
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Morphology of a lymph node Morphology of a lymph node
Neuron (nerve cell) structure. Neuron (nerve cell) structure.
Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event
Structure of hair Structure of hair
Microtubules: Cilium structure Microtubules: Cilium structure
Lymph Node Lymph Node
Video: Wound Repair Animation

For a complete list of videos, visit our video library