How the cardiac cycle is maintained

Slides:



Advertisements
Similar presentations
The Heart Control of the Heart Beat The Heart Beat The heart is made up of cardiac muscle. Cardiac muscle is myogenic, which means it naturally contracts.
Advertisements

Control of the Cardiac Cycle
The Heart: Conduction System
Cardiac conducting system. Learning Outcomes The heart beat originates in the heart itself but is regulated by both nervous and hormonal control. The.
Assessment Statements H.5.1 Explain the events of the cardiac cycle, including atrial and ventricular systole and diastole, and heart sounds. H.5.2 Analyse.
Microscopic Anatomy of Heart Muscle
AS PE PHYSIOLOGY EXAM QUESTIONS & MARK SCHEMES
5.2 The cardiac cycle. Learning outcomes Students should understand the following: Myogenic stimulation of the heart and transmission of a subsequent.
Conduction of the Heart Cardiac Cycle. Learning Objectives Explain how the heart works in relation to the conduction system Explain the cardiac cycle.
Co-ordination of the Cardiac Cycle Aims Describe how heart action is coordinated with reference to the sinoatrial node (SAN), the atrioventricular node.
Control of the cardiac cycle. Learning intentions Describe how heart action is coordinated with reference to the sinoatrial node, the atrioventricular.
12/10/11 Miss Radford Control of the cardiac cycle about how the cardiac cycle is regulated and controlled. WAL: All Most Some What are “cardiac output”
CARDIAC CYCLE Renee Anderson.
Control of heart rate.
+ B5b circulatory systems and the cardiac cycle. + Objectives Describe and explain double and single circulations, structure of the heart and circulatory.
Cardio-Vascular System
Co-ordination of the Cardiac Cycle SBI3U. The heart is made of cardiac muscle. When the cells receive an electrical impulse they contract - causing a.
The Heart Control of the Heart Beat The Heart Beat The heart is made up of cardiac muscle. Cardiac muscle is myogenic, which means it naturally contracts.
The Cardiac Cycle Relate the events during the cardiac cycle to the maintenance of blood flow through the heart Describe the relationship between pressure.
Cardiovascular System Physiology. Cardiac Muscle Cardiac muscle cells are elongated, branching cells that contain one or occasionally two centrally located.
Learning objectives E - Label the different parts of the heart C - Describe the heart cycle, including the roles of the SAN, AVN & bundle of His A – Explain.
Cardiac Conduction  Autorhythmic: cardiac muscle cells depolarize at regular intervals  Cardiac Conduction system: cardiac cells that are specialized.
Lab 2 The Intrinsic Cardiac Conduction System 1/24/20101Mickey Dufilho.
Who can put their washing out fastest? Peg up and place the cards in the right order – table vs table EXTENSION – name as many differences between right.
Conducting system of the heart. Control of coordination an timing Where does the heart beat originates from? The heart itself How is it regulated? By.
Setting the Heart’s Tempo Setting the Heart’s Tempo.
Higher Human Biology. Cardiac Conducting System  The heart beat originates in the heart itself.  Heart muscle cells are self contractile  They are.
Chapter 11. Intrinsic conduction system (nodal system) Heart muscle cells contract, without nerve impulses!
The Heart Continued... Human heartbeats originate from the SA node near the right atrium. Cardiac muscle cells contract, sending a signal to other muscle.
The Hearts conduction system
It Keeps On Beating. Review! What Does the Cardiovascular System Do? Fill in the Blanks: ( Use these terms) temperature, hormones, oxygen, carbon dioxide,
Electrical Conduction pathway of the heart: heart beat is regulated by electrical impulses heart beat is regulated by electrical impulses.
Heart Structure and Function The gross structure of the human heart and its associated blood vessels in relation to function. Heart Structure, Cardiac.
How does the heart beat?. The heart beat is MYOGENIC i.e. the electrical signals needed to make the muscles contract originate in the muscle itself (rather.
The Show. The Heart The heart is a bag of cardiac muscle filled with blood Has 4 chambers: 2 atria & 2 ventricles Right side contains oxygenated blood.
Heart and Cardiac cycle
Task 1: Recap structure of the heart Imagine you are a red blood cell returning to the heart in the vena cava. Describe the structural features you pass.
Higher Human Biology Unit 2 Physiology and Health 3. Cardiac conducting system and blood pressure.
AS PE PHYSIOLOGY EXAM QUESTIONS & MARK SCHEMES
Key Revision Points for Cardiac Function
5.1.5 Animal Responses – Adrenaline and Controlling Heart Rate
Physiologic signals Lecture (1).
The heart and “stuff”!. The heart and “stuff”!
Properties of Cardiac Muscle
Control of Heart Contractions
Cardiovascular System Block Cardiac electrical activity (Physiology)
Cardiovascular System Block Cardiac electrical activity (Physiology)
Journal#2: Damage to the semilunar valve on the right side of the heart would affect blood flow to which vessel? Objective: Explain the events of the.
Lesson starter Name the four heart chambers
Heart Conduction & Cardiac Cycle
Cardiovascular System
The Heart.
Chapter 18 – Cardiovascular System
Conduction System of the Heart
Cardiac Conduction System
Heart Conduction System
Do Now 3/31 PALLIATE (PAL ee ayt) v.
UNIT 3 NOTES: Cardiac Conduction System
It Keeps On Beating Name of PowerPoint Name of Course Name of Lesson
37–1 The Circulatory System
Intrinsic Conduction System
37–1 The Circulatory System
Electrical Conductivity System of the Heart
UNIT 2 NOTES: Cardiac Conduction System
It Keeps On Beating Name of PowerPoint Name of Course Name of Lesson
Chapter 10.2 Part 2.
Use of artificial pacemakers to regulate the heart rate
Journal#2: Damage to the semilunar valve on the right side of the heart would affect blood flow to which vessel? Objective: Explain the events of the.
Heart Conduction and Contraction
Presentation transcript:

How the cardiac cycle is maintained

basics The heart muscles are myogenic. This means that the heart is able to control its contractions are controlled within the muscle itself. Within the right atrium is the sinoatrial node, it is known as the pacemaker in the heart.

Sinoatrial node (SAN) A wave of electrical causes both the atria to contract. This message is stopped from going to the ventricles by a non-conductive tissue

Atrioventricular node (AVN) The electrical energy passes though the AVN located between the atria. After a short delay, the AVN conveys a wave of electrical energy between the ventricles along specialised muscle fibres called a bundle of His

Bundle of His Fibres The bundle of His conducts the wave through the atrioventricular septum to base of the ventricle., where the bundles branches into smaller fibres The wave of electrical activity is released from these fibres, this causes the ventricles to contract quickly at the same time, from apex of the heart upwards

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com. Inc. All rights reserved.