MYTUTOR SUBJECT ANSWERS

79 views

What events occur during the cardiac cycle?

Within the heart the atria contract creating a high pressure and squeezing blood into the ventricles. The semi lunar valves are closed so pressure within the ventricles builds up.Pressure within the ventricles becomes greater than in the atria which closes the atrioventricular valves. The cardiac muscle of the ventricle walls contract which causes the pressure in the ventricles to exceed the pressure within the atria and pulmonary artery forcing the semi lunar valves to open and expelling blood from the heart.

James H. GCSE Biology tutor, A Level Biology tutor, GCSE English tutor

2 months ago

Answered by James, an A Level Biology tutor with MyTutor

Still stuck? Get one-to-one help from a personally interviewed subject specialist

126 SUBJECT SPECIALISTS

£20 /hr

Abigail G.

Degree: Zoology (Bachelors) - Exeter University

Subjects offered: Biology, Maths+ 3 more

Biology
Maths
Geography
Chemistry
-Personal Statements-

“Hi I'm Abi, a 1st year MSci Zoology student at the University of Exeter, Penryn Campus. I am absolutely loving my degree and am learning new and exiting things every second! I thoroughly enjoy anything biological related and am able t...”

£24 /hr

Leanne R.

Degree: Chemistry (Masters) - Liverpool University

Subjects offered: Biology, Science+ 1 more

Biology
Science
Chemistry

“First year Chemistry undergraduate, offering help with Biology and Chemistry GCSEs”

£20 /hr

Ed W.

Degree: Medicine (Bachelors) - Edinburgh University

Subjects offered: Biology, Maths+ 3 more

Biology
Maths
Further Mathematics
Chemistry
-Medical School Preparation-

“Hi! I'm Ed and I'm currently studying Medicine at the University of Edinburgh. I tutor at GCSE and A Level forBiology, Chemistry and Maths, and at GCSE level forFurther Maths. These are subjects I'm very comfortable in and enjoy. With ...”

MyTutor guarantee

About the author

£20 /hr

James H.

Degree: Biology (Bachelors) - Bristol University

Subjects offered: Biology, English

Biology
English

“Top tutor from the renowned Russell university group, ready to help you improve your grades.”

MyTutor guarantee

You may also like...

Other A Level Biology questions

Describe the use of promoters in gene technology

A guanine is swapped for a thymine in a gene sequence. Explain how this may alter the function of the protein it translates.

How are blood glucose levels controlled in the body?

What is the difference between type I and type II diabetes?

View A Level Biology tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok