1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
solmaris [256]
3 years ago
14

The cardiac electrical impulse normally begins spontaneously in the SA node because

Medicine
1 answer:
Sophie [7]3 years ago
4 0

Answer:

The correct answer will be option-D.

Explanation:

Conduction system of the heart contains autorhythmic fibres which are usually Nodes of the heart. There are two types of nodes-Sinoatrial node and the atrioventricular node.

The sinoatrial node is known as the pacemaker of the heart as it maintains the pace of the heartbeat due to its efficiency if higher depolarization than other node and conduction cells like a bundle of His and Purkinje fibres.  

Since depolarization causes a contraction in the muscle cells, therefore, heartbeats and thus option-D is the correct answer.

You might be interested in
What is the stimulus for endospore production in bacteria.
andreyandreev [35.5K]

Answer:

heat; it cuases the endospore to expand allowing the stain to penetrate the structure.

Explanation:

8 0
2 years ago
What is the body's last ditch effort in<br> fighting pathogens?
GarryVolchara [31]
Once infected cells have sensed an invading pathogen, they secrete molecules called cytokines and chemokines. Cytokines such as interferons are molecules that signal neighbouring cells and induce an antiviral state in them. These cells are then primed to resist an infection with the invading virus.
3 0
3 years ago
this 20 day old infant is seen in my office today because of the time of birth experience a cardiac dysrhythmia suggestive of ta
Alexxandr [17]

Answer:

sorry i will not b able to help on this

Explanation:

3 0
3 years ago
The study of Anatomy &amp; Physiology is considered Science.<br> True<br> False
Cloud [144]

Answer:

TRUE

Explanation:

Anatomy and physiology are two of the most basic terms and areas of study in the life sciences. Anatomy refers to the internal and external structures of the body and their physical relationships, whereas physiology refers to the study of the functions of those structures.

3 0
3 years ago
Read 2 more answers
Obstruction in Adults and Children - Procedures and Differences
CaHeK987 [17]

Answer:

Obstructions are different in adults and children because first of all children have a smaller airway meaning that some objects may cut off there breathing more easily. Also children are more likely to get objects stuck in there airways since they don’t know any better. To retrieve an object from a child’s airway you should make sure they are breathing first and then use special tools to go in the child’s throat and retrieve the object. For an adult you will do the same thing but use a different tool. If the adult is able to still breath, eat, and swallow correctly the object will most likely just pass through the system at some point but it’s best to remove it.

Explanation:

4 0
3 years ago
Other questions:
  • A 15-year-old girl has been experiencing dysmenorrhea for the past year. Over the past 6 months, she has been taking ibuprofen a
    9·2 answers
  • Blood vessels can hold much more blood than is present in the body.<br> a. True<br> b. False
    5·1 answer
  • Type your one-page report here. Be sure to answer all of the following questions:
    7·1 answer
  • María es una estudiante universitaria de 22 años de edad, 185 cm de estatura y 78 kg de peso. Calcular su VO2máx teórico sabiend
    13·1 answer
  • What side of our head is our brain on
    11·2 answers
  • Moderate alcohol intake is compatible with the Mediterranean diet and lifestyle; however, excess alcohol intake can lead to unwa
    7·1 answer
  • How much lugol's iodine for a 5 year old with fever
    6·1 answer
  • A stressful life changing situation would be_____________.
    14·2 answers
  • a patient with diabetes presents to the emergency department (ed) complaining of severe right upper quadrant pain. the patient s
    5·1 answer
  • Conflict can sometimes be beneficial for a team <br> True <br> Or<br> False
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!