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
gayaneshka [121]
3 years ago
8

(a) It is possible to measure a patient’s heart rate by either palpating their peripheral pulse, by observing their ECG, or by l

istening for the lub-dup through a stethoscope. However, patients with atherosclerosis of the femoral artery may not have a pulse in the popliteal artery or dorsalis pedis of the foot. Does this mean that they will also lack a heart beat (lub-dup) or QRS complex? Explain the relationship between a heart beat, pulse, and QRS complex. (B) Why is there a delay between systole of the ECG and the resulting pulse felt in the finger (R-Pulse)?
Biology
1 answer:
Dimas [21]3 years ago
7 0
B)<span>When you listen to the heart sounds, you are hearing the flow of blood which stops abruptly when a heart valve closes. This produces the "lub-dub" sounds. 1st heart sound (when the Mitral Valve closes) as the ventricle contracts (systole) and then 2nd heart sound (when the Aortic Valve closes) and the ventricle starts to fill again (diastole)
</span><span>The pulse is the wave of pressure you can feel through the artery walls. This denotes systole.
</span><span>The ECG's QRS complex is the electrical signal that tells the Ventricles to contract. You can see that the QRS occurs right at the beginning of systole and triggers Isovolumetric contraction.
</span><span>So the QRS on the ECG, the pulse wave you can feel (ie. the rise in aortic pressure) and the 1st heart sound all signify SYSTOLE.
</span><span>there a delay between systole of the ECG and the resulting pulse felt in the finger (R-Pulse) </span>because it takes a little bit of time for the pressure to transmit through the body, as the finger is not on the heart (if it was there would be no delay)
You might be interested in
Who said that all animals are made of cells?
zzz [600]

Answer:

Theodor Schwann, said that all animals are made of cells.

Explanation:

Hope this helps! :)

5 0
2 years ago
Read 2 more answers
Explain how a ship made of materials that are much denser than water is able to float on water?
velikii [3]
Because the weight is evenly distributed
5 0
3 years ago
the mutation of the brca1 gene normally functions to ensure? a)breast cancer cells duplicate b)suppress tumor function c)the per
DedPeter [7]
I believe the answer is B!
3 0
3 years ago
Which characteristic of life best describes the process of photosynthesis?
natulia [17]

Answer:

No 2. growing and developing

8 0
3 years ago
Read 2 more answers
Why is the outdated term "junk dna" a misnomer for noncoding regions of the human genome? Why is the outdated term "junk dna" a
KIM [24]

Answer;

-The conservation of "junk DNA" sequences in diverse genomes suggests that they have important functions.

Explanation;

-The term junk DNA refers to regions of DNA that are noncoding. DNA contains instructions (coding) that are used to create proteins in the cell. However, the amount of DNA contained inside each cell is vast and not all of the genetic sequences present within a DNA molecule actually code for a protein.

-Some of this noncoding DNA is used to produce non-coding RNA components such as transfer RNA, regulatory RNA and ribosomal RNA. However, other DNA regions are not transcribed into proteins, nor are they used to produce RNA molecules and their function is unknown.

3 0
3 years ago
Read 2 more answers
Other questions:
  • A company develops a new pesticide that kills insects. When the pesticide is first used, it kills nearly all the insects.
    6·1 answer
  • As the organism inside the respirometer consumes oxygen what happens to the water
    14·2 answers
  • Which is not a process involved in the formation of sedimentary rock? depositing cementing eroding cooling
    9·2 answers
  • (7th Grade Science)
    11·2 answers
  • What is the stimulus shown in the photographs?
    8·1 answer
  • Biological evidence of the age of the earth includes _____.
    6·2 answers
  • Pros and cons for growing and selling GM (Genetically modified) food.
    13·2 answers
  • What happens on the microscope as you adjust the coarse focus? What part of th<br> microscope moves?
    13·2 answers
  • What is the main function of the crispr-cas9 system?
    12·1 answer
  • 1. A phospholipid has a head made up of a glycerol molecule attached to a single , which is attached to another small molecule.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!