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 75 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
Excellent

hollysheppard095

  • Member
  • Posts: 339
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Medication errors are three times higher among children and infants than with adults.

heart heart
Large water tank, possibly a public or ritual bathing area, from Mohenjo-daro, Indus Valley ... Large water tank, possibly a public or ritual bathing area, from Mohenjo-daro, Indus Valley ...
The locations of human primary somatosensory cortex (SI) and one area of secondary somatosensory ... The locations of human primary somatosensory cortex (SI) and one area of secondary somatosensory ...
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 ...
Heart Valves and Circulation of Blood Heart Valves and Circulation of Blood
Development of the Heart Development of the Heart
Video: Structure of Amino Acid, Peptide Bonds & Polypeptides

For a complete list of videos, visit our video library