Subjects
Careers
Biology
Geometry
English
AP English Literature
Fun Stuff
Parallel & Perpendicular Lines
Intro
Volume, Surface Area & Density
Distance & cordinate plance
Right Triangles & Trigonometry
Dilations
Congruent Triangles
Rotations & Reflections
2D & 3D Solids
Circles
Overview
Congruence
Similar & Congruent Triangles
Pythagorean Theorem
Tranformations & translations
Show all topics
5
0
avery hoover
10/24/2023
Health
The Circulatory System
The circulatory system is a complex network of blood vessels, organs, and regulatory mechanisms that work together to maintain blood flow and pressure throughout the body. This system is essential for delivering oxygen and nutrients to tissues while removing waste products. The heart, acting as the central pump, is controlled by various factors including nerves, hormones, and specialized cells to adjust its rate and output based on the body's needs.
10/24/2023
91
3
23
9th/10th
Skeletal Injuries and Diseases
An overview of different skeletal diseases and injuries and how they are treated
27
275
12th
Human Anatomy Systems
Diagram and Functions of the Digestive system, cardiovascular system, and respiratory system.
8
136
10th/11th
Anatomy and Physiology Chapter 12 Lesson Objectives
Lymphatic system full analysis
2
47
10th/11th
Modern Dental Assisting: Chapter 38
pioneers of radiology
5
171
9th/10th
The Heart
An overview of the heart, how blood flows, and how to ascultate heart sounds
11
154
11/9
sensory barriers
LO-identify the barriers in terms of sensory difficulties explain how to support those with a sensory barrier
Average App Rating
Students use Knowunity
In Education App Charts in 17 Countries
Students uploaded study notes
iOS User
Stefan S, iOS User
SuSSan, iOS User
avery hoover
@averyhoover_wlpz
The circulatory system is a complex network of blood vessels, organs, and regulatory mechanisms that work together to maintain blood flow and pressure throughout the body. This system is essential for delivering oxygen and nutrients to tissues while removing waste... Show more
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
This page provides a comprehensive overview of the circulatory system, focusing on key components, mechanisms, and regulatory factors that control blood flow and heart rate. The information is presented in a question-and-answer format, making it ideal for students studying circulatory system questions and answers.
Vocabulary: "Hemo" is derived from the Greek word for blood, setting the stage for a discussion about the circulatory system.
The discovery of the human body's blood circulation system is attributed to William Henry in 1628, marking a significant milestone in medical history.
Professor Anatomy's description uses an analogy to explain the structure and function of the heart and lungs:
Example: The heart is compared to a house with different chambers , valves are likened to one-way doors, and the lungs are represented by balloons. This analogy helps visualize how blood flows through the heart and how gas exchange occurs in the lungs.
The document highlights the variation in heart rates across different animal species:
Highlight: Heart rates differ significantly among animals, with smaller animals generally having faster heart rates than larger ones. For instance, birds have heart rates of 200-600 beats per minute , humans 60-100 BPM, and elephants 25-35 BPM.
The efficiency of the human heart is emphasized by noting that it can pump a quart of blood in just ten seconds, with an adult heart pumping about five quarts per minute.
The pacemaker, also known as the SA Node, is identified as the "boss man" muscle that controls the heart's rhythm. The document then explains how different nerves affect heart rate:
Definition: Vagus nerves slow down the heart rate, while sympathetic nerves increase it, demonstrating the short-term regulation of blood pressure.
Baroreceptors play a crucial role in blood pressure regulation:
Definition: Baroreceptors are specialized nerve cells that sense blood pressure by detecting the stretch in blood vessel walls, contributing to the baroreceptor reflex.
Lastly, the document explains how hormones influence heart rate:
Highlight: The sympathetic nervous system releases hormones to accelerate heart rate, while the parasympathetic nervous system releases hormones to slow it down. This information is crucial for understanding hormones that affect heart rate and the cardiac hormones list.
This comprehensive overview provides valuable insights into the circulatory system in animals, including humans, and serves as an excellent resource for students preparing for circulatory system quizzes or studying blood flow through the heart | step by step.
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
You can download the app in the Google Play Store and in the Apple App Store.
You have the choice, we offer a 100% secure payment via PayPal or an Amazon gift card. There is no limit to how much you can earn.
App Store
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
