Study sets matching "physiology heart"

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Study sets matching "physiology heart"

47 terms
Blood & Heart Chapter Physiology
5-6 in males, 4-5 in females
- Transport gases (O2, CO2), nutrients…
Hematopoeisis
Stem Cells
How many liters of blood are in males? Females?
What are the three functions of blood in the body?
Defined as synthesis of blood cells, how the formed elements…
What are blood cells originally made from?
5-6 in males, 4-5 in females
How many liters of blood are in males? Females?
- Transport gases (O2, CO2), nutrients…
What are the three functions of blood in the body?
17 terms
Chapter 12- Physiology of the Heart
Conduction (??)
Sinoatrial (SA) node
Atrioventricular (AV) node
Atrioventricular Bundle (Bundle of His)
1.an action potential is created and transmitted... 2.stimulate…
also known as pacemaker cells (cluster of cells located in ri…
1. part of the electrical conduction system of the heart that…
a collection of heart muscle cells specialized for electrical…
Conduction (??)
1.an action potential is created and transmitted... 2.stimulate…
Sinoatrial (SA) node
also known as pacemaker cells (cluster of cells located in ri…
Heart & Cardiac Physiology
Angina Pectoris
Myocardial Infarction
Bradycardia
Tachycardia
Chest pain due to ischemia, triggered by exertion/stress; rel…
Chest pain persist even at rest (CAD), cell necrosis.
Abnormally slow heart rate. Below 60 bpm
Abnormally rapid heart rate. Above 100 bpm
Angina Pectoris
Chest pain due to ischemia, triggered by exertion/stress; rel…
Myocardial Infarction
Chest pain persist even at rest (CAD), cell necrosis.
61 terms
Ch. 19 Heart Physiology
Heart Functions
Mediastinum
Location of Heart
Pericardium
*Generates blood pressure to provide adequate blood flow... * Ro…
Located in the midline of the body... * Contains the Heart, tra…
The midline of the body. About 2/3 is left of the midline and…
Covering of the heart... *2 layers - Fibrous Pericardium & Sero…
Heart Functions
*Generates blood pressure to provide adequate blood flow... * Ro…
Mediastinum
Located in the midline of the body... * Contains the Heart, tra…
15 terms
1.6 Heart Physiology
Cardiac muscle has short, thick, branc…
Sarcoplasmic reticulum is less develop…
Cardiac muscle fibers are connected en…
Desmosomes hold muscle fibers ____
nucleus
T-tubules
intercalated discs
together
Cardiac muscle has short, thick, branc…
nucleus
Sarcoplasmic reticulum is less develop…
T-tubules
35 terms
Anat heart physiology
Intrinsic conduction system of the heart
intrinsic conduction causes heart musc…
intrinsic enforces contraction rate of…
crescent shape node found in right atr…
nodal system- built into heart tissue- sets basic rhythm- com…
from the atria to the ventricles
75 bpm
sinoatrial node
Intrinsic conduction system of the heart
nodal system- built into heart tissue- sets basic rhythm- com…
intrinsic conduction causes heart musc…
from the atria to the ventricles
18 terms
Pharm 7 Heart Physiology
Cardiac Cycle
Systole
Diastole
Stroke Volume (SV)
Beginning of one heart beat to the beginning of another heart…
•Ventricles contract/Atrium relax ... •Aortic and pulmonary valv…
•Ventricles relax/Atrium contract ... •Mitral and tricuspid valv…
Normally ~75 ml... Amount of blood that leaves the left ventricl…
Cardiac Cycle
Beginning of one heart beat to the beginning of another heart…
Systole
•Ventricles contract/Atrium relax ... •Aortic and pulmonary valv…
Anatomy and physiology heart Vocab
aorta
apex
artery
atrioventricular
the main artery of the body, supplying oxygenated blood to th…
the lower pointed end of the heart situated in humans opposit…
any of the muscular-walled tubes forming part of the circulat…
relating to the atrial and ventricular chambers of the heart,…
aorta
the main artery of the body, supplying oxygenated blood to th…
apex
the lower pointed end of the heart situated in humans opposit…
Heart-Physiology/Systems1
System of the heart and vessels
Functions of cardiovascular system inc…
Right side of heart receives this type…
Left side of heart receives this type…
Cardiovascular
Delivery of nutrients, removal of wastes, and distribution of…
O2 poor/CO2 rich from tissues; lungs
O2 rich from lungs; tissues
System of the heart and vessels
Cardiovascular
Functions of cardiovascular system inc…
Delivery of nutrients, removal of wastes, and distribution of…
172 terms
heart anatomy + cardiac physiology
where is the heart located?
apex
base
anterior interventricular sulci
mediastinum
where is the heart located?
mediastinum
apex
47 terms
Anatomy and Physiology: Heart and Blood Vessels
Three Major Blood Vessels
Arteries
Capillaries
Veins
Arteries, Capillaries and Veins
Carry blood away from the heart... Transport blood under high pr…
Exchange solutes and water with cells of the body... Microscopic…
Return blood to the heart... Three layers, thin-walled
Three Major Blood Vessels
Arteries, Capillaries and Veins
Arteries
Carry blood away from the heart... Transport blood under high pr…
25 terms
Heart Physiology 1
Cardiac conduction system
-60mV
SA node
Internodal pathways
Group of specialized, highly excitable cells that give the he…
Resting membrane potential of the cardiac conduction system
Pacemaker of the heart; Spontaneously generates action potent…
Spreads action potentials to cardiac muscle of atria via what?
Cardiac conduction system
Group of specialized, highly excitable cells that give the he…
-60mV
Resting membrane potential of the cardiac conduction system
44 terms
Physiology: Heart Practical
Right Atrium
Left Atrium
Right Ventricle
Left Ventricle
A small chamber of the heart that recieves blood from the sup…
A small chamber of the heart that recieves blood from the pul…
A larger chamber with thin walls that recieves blood through…
A larger chamber with thicker walls that recieves blood throu…
Right Atrium
A small chamber of the heart that recieves blood from the sup…
Left Atrium
A small chamber of the heart that recieves blood from the pul…
Major Heart Anatomy/Physiology
Vein
Artery
Superior Vena Cava
Inferior Vena Cava
Blood pumping towards the heart
Blood pumping out of the heart to the rest of body
The top vein of the heart that takes in blood from the arms a…
The bottom vein that takes in blood from the legs and lower b…
Vein
Blood pumping towards the heart
Artery
Blood pumping out of the heart to the rest of body
32 terms
Physiology Part 1 of Heart
efferent vessels
afferent vessels
carditis
conus arteriosum
arteries
veins
inflammation of the heart
conical pouch ending at the pulmonary valve
efferent vessels
arteries
afferent vessels
veins
31 terms
Heart II Physiology
conduction system of the heart
conduction system
SA node (name)
SA node (location)
-during embryonic development, some cells become auto-rhythmi…
-some cells become auto-rhythmic durng embryonic develoment
sinoatrial node... Pacemaker
Medial to opening of superior vena cava
conduction system of the heart
-during embryonic development, some cells become auto-rhythmi…
conduction system
-some cells become auto-rhythmic durng embryonic develoment
26 terms
Heart Anatomy and Physiology
A.V. Valve
Mitral valve
Tricuspid valve
Semilunar valves
Atrioventricular valves that lie between the atrias and the v…
A valve in the heart that guards the opening between the left…
A valve that is situated at the opening of the right atrium o…
Either of two valves serving to prevent blood from flowing ba…
A.V. Valve
Atrioventricular valves that lie between the atrias and the v…
Mitral valve
A valve in the heart that guards the opening between the left…
14 terms
Heart and Lung Physiology
electrical flow of heart
mean axis of heart
how to speed up the heart
how to slow it down
SA node, AV node, right bundle of his, purkinje fibers
-30 to 90 normal... will shift depending on hypertrophy due to a…
postganglionic nerve fibers of the Sympathetic NS
vagus nerve
electrical flow of heart
SA node, AV node, right bundle of his, purkinje fibers
mean axis of heart
-30 to 90 normal... will shift depending on hypertrophy due to a…
21 terms
Anatomy and Physiology: Heart Lab Practical
Aorta
Right Atrium
Left Atrium
Right Ventricle
Upper right chamber
Upper left chamber
#3
Aorta
Right Atrium
Upper right chamber
Anatomy and physiology : Heart
The heart is located in the mediastinu…
Name the organ directly below the heart
How many layers of pedicardial membran…
The outermost layer of the heart is th…
Lungs, thoracic
Diaphragm
3
Fibrous, fibrous connective tissue
The heart is located in the mediastinu…
Lungs, thoracic
Name the organ directly below the heart
Diaphragm
Physiology Muscle and Heart
I bands
A bands
All the muscle fibers the somatic moto…
Site where a motor neuron stimulates a…
Actin
Myosin
Motor unit
Neuromuscular junction
I bands
Actin
A bands
Myosin
6 terms
Rat Dissection: Heart (Physiology)
Pericardium
Right, and left atria
Right and left ventricle
Vena cava
contains serous membrane the parietal pericardium which secre…
receiving chambers for blood returning to the heart
pumping chambers of the heart; the right side pumping oxygen-…
return oxygen-poor blood to the heart
Pericardium
contains serous membrane the parietal pericardium which secre…
Right, and left atria
receiving chambers for blood returning to the heart
27 terms
Physiology Heart and Circulation
pulmonary circulation
systemic circulation
systemic arterial blood pressure
blood pressure
blood pumped from the right side of the heart through the lungs
blood if pumped from the left side of the heart to the body
the pressure in the aorta from the heart pumping that is abov…
same as systemic arterial blood pressure; causes the flow of…
pulmonary circulation
blood pumped from the right side of the heart through the lungs
systemic circulation
blood if pumped from the left side of the heart to the body
8 terms
Human Anatomy and Physiology: Heart
Right pulmonary artery
Superior vena cava
Right pulmonary veins
Right atrium
Right pulmonary artery
Superior vena cava
Anatomy &Physiology: heart
Apex
Base
R. Ventricle
Pulmonary semilunar valve
Pointed, inferior portion of the heart
Site where the major vessels attach to the heart
Chamber that pumps blood to the lungs
Valve that prevents blood from returning to the R. Ventricle
Apex
Pointed, inferior portion of the heart
Base
Site where the major vessels attach to the heart
27 terms
Heart, Cardio, Physiology
3 types of cardiac cells
autorhythmic (pacemaking)
Conducting fibers
myocardial (Contractile)
autoryhtmic (pacemaking)... conducting fibers (bundle of his and…
SA node and AV node
bundle of His and Purkinje fibers
atrial and ventricular walls... (individ. myocytes)
3 types of cardiac cells
autoryhtmic (pacemaking)... conducting fibers (bundle of his and…
autorhythmic (pacemaking)
SA node and AV node
31 terms
Heart anatomy and physiology
Pericardium parts (2)
Fibrous pericardium
Serous pericardium
Serous fluid
Fibrous and serous
Superficial layer, connective tissue, protects, anchors in me…
Forms later around heart:... Has two layers:... Superficial parieta…
Reduces friction between layers of the serous pericardium
Pericardium parts (2)
Fibrous and serous
Fibrous pericardium
Superficial layer, connective tissue, protects, anchors in me…
6 terms
Anatomy & Physiology: The Heart
Chambers of the Heart
Major Blood Vessels
Course of Blood through the Heart
Length of Cardiac Cycle (and minimum r…
Left/Right Atrium... L/R Ventricle
Aorta and Vena Cava
Superior Vena Cava > R Atrium > R Atrioventricular Calve > R…
0.8 sec on average ... 0.3 sec needed at least
Chambers of the Heart
Left/Right Atrium... L/R Ventricle
Major Blood Vessels
Aorta and Vena Cava
18 terms
Anatomy & Physiology - The Heart
Pathway of Blood
Pathway of Electrical Conductivity
SA node
AV node
(From the body) SVC, RA, tricuspid valve, RV, pulmonary valve…
SA node; AV node; ... AV bundle (bundle of His); purkinje fibers
Sinoatrial Node.... Located in RA near SVC.... Is the natural pacem…
Arterioventricular node.... Located on opposite side of RA, near…
Pathway of Blood
(From the body) SVC, RA, tricuspid valve, RV, pulmonary valve…
Pathway of Electrical Conductivity
SA node; AV node; ... AV bundle (bundle of His); purkinje fibers
The Heart - Anatomy & Physiology
Inter-ventricular Septum
Descending Aorta
Ascending Aorta
Superior Vena Cava
Wall that separates the two ventricles of the heart from one…
Carries blood from the aortic arch to smaller arteries (split…
Section between the heart and the arch of the aorta.
Large vein which returns blood to the heart from the head, ne…
Inter-ventricular Septum
Wall that separates the two ventricles of the heart from one…
Descending Aorta
Carries blood from the aortic arch to smaller arteries (split…
52 terms
Physiology-Heart & Circulation
Fxns of the Circulatory System
Major Components of the Circulatory Sy…
Subdivisions of the Circulatory System
Major Components of the Lymphatic System
Transportation of respiratory gases, nutrients & waste... Regula…
Heart-4 Chambers... Blood Vessels-arteries, arterioles, capillar…
Cardiovascular System & Lymphatic System
Lymphatic vessels, lymphoid tissues & organs (spleen, thymus,…
Fxns of the Circulatory System
Transportation of respiratory gases, nutrients & waste... Regula…
Major Components of the Circulatory Sy…
Heart-4 Chambers... Blood Vessels-arteries, arterioles, capillar…
28 terms
Physiology heart pic
systole
diastole
systole
A-V valve closes
systole
diastole
Lab Review: Heart Physiology
Ensures that heart muscle depolarizes…
Generates impulses and atrial depolari…
The impulses is delayed by 0.1 second...
Connects the atria to the ventricles...
Intrinsic conduction system
Sinoatrial (SA) node
Atrioventricular (AV) node
Atrioventricular bundle (bundle of His)
Ensures that heart muscle depolarizes…
Intrinsic conduction system
Generates impulses and atrial depolari…
Sinoatrial (SA) node
39 terms
Microscopic Anatomy & Physiology of the Heart
While both cardiac and skeletal muscle…
T/F Cardiac muscle does not have gap j…
What helps the heart muscle to contrac…
What is the source of Ca 2+ for heart…
cardiac muscles are short, branched and 1-2 nuclei per cell…
F
gap junctions
sarcoplasmic reticulum & ECF
While both cardiac and skeletal muscle…
cardiac muscles are short, branched and 1-2 nuclei per cell…
T/F Cardiac muscle does not have gap j…
F
Bryan- Heart Anatomy and Physiology
endocardium
myocardium
pericardium
Valves
The innermost layer of heart
The middle layer of the heart
The outermost layer of the heart
control the direction of blood flow through the heart
endocardium
The innermost layer of heart
myocardium
The middle layer of the heart
14 terms
Heart- Physiology Test
Epicardium
Myocardium
Endocardium
Cardiac muscle cells
Thin, serous membrane forming the smooth outer surface of the…
Composer of cardiac muscle
Smooth inner layer; forms the surface of the heart chambers
Organized into spiral bundles or sheets
Epicardium
Thin, serous membrane forming the smooth outer surface of the…
Myocardium
Composer of cardiac muscle
Physiology notes Heart lecture
2 atria (right and left)
2 ventricles (right and left)
2 atrioventricular valves (right and l…
2 semilunar valves (aortic and pulmona…
How many atria are there in the heart?
How many ventricles are there in the heart?
How many atrioventricular valves are there in the heart?
How many semilunar valves are there in the heart?
2 atria (right and left)
How many atria are there in the heart?
2 ventricles (right and left)
How many ventricles are there in the heart?
anatomy and physiology the heart
systole
diastole
function of the heart
location of the heart
contraction
relaxation
is pumping
mediastinum (space inside chest occupy by more than one organ)
systole
contraction
diastole
relaxation
82 terms
Physiology Quiz 2 Heart
general heart
Pericardium
Pericardial sac
Pericardial sac issues
-myocardium... -fist sized... -chest cavity... -center of thorax
-encloses the heart in the chest/pericardial cavity... -double l…
outer fibrous covering of pericardium that is filled with per…
no fluid-irritated, inflamed tissue, pain, pericarditis... too m…
general heart
-myocardium... -fist sized... -chest cavity... -center of thorax
Pericardium
-encloses the heart in the chest/pericardial cavity... -double l…
11 terms
Heart Physiology - Continued
Depololarization and Repolarization co…
Systole and diastole
Helpful hint
Electrocardiogram EKG (ECG)
When cardiac cells are at rest, they are considered to be pol…
Systole - heart contraction - caused when heart cells depolar…
Systole meals contraction, relate syst to system- during cont…
Electrical changes during the cardiac cycle are recorded as a…
Depololarization and Repolarization co…
When cardiac cells are at rest, they are considered to be pol…
Systole and diastole
Systole - heart contraction - caused when heart cells depolar…
19 terms
Physiology Test 2 Heart
Stroke Volume
Systole
Diastole
End Diastolic Volume (EDV)
The amount of blood that is pumped by each ventricle during e…
contraction of the heart
relaxation of the heart
Amount of blood in ventricle just before ventricular contract…
Stroke Volume
The amount of blood that is pumped by each ventricle during e…
Systole
contraction of the heart
73 terms
Physiology 281- The Heart
what kind of blood does the right side…
what kind of blood does the left side…
pulmonary blood vessels
systemic blood vessels
deoxygenated blood returned from body tissues to the lungs fo…
oxygenated blood returned from the lungs to body
transport blood between the heart and the lungs
transport blood between the part heart and the body
what kind of blood does the right side…
deoxygenated blood returned from body tissues to the lungs fo…
what kind of blood does the left side…
oxygenated blood returned from the lungs to body
61 terms
Quiz 2 Heart Physiology
cardiocytes
intercalated discs
demosomes
gap junctions
cardiac muscle cells; short, thick, single nucleus cell, no c…
interlocks cardiac cells, contain demosomes and gap junctions
prevent adjacent cells from separating
allow ions to pass from cell to cell
cardiocytes
cardiac muscle cells; short, thick, single nucleus cell, no c…
intercalated discs
interlocks cardiac cells, contain demosomes and gap junctions
Anatomy & Physiology II: The Heart
Pulmonary Circuit
Systematic Circuit
Right Atrium
Left Atrium
Right side of heart receives oxygenated poor blood from tissu…
Left side of heart receives oxygenated blood from lungs.... -Pu…
Receives blood from systematic circuit.
Receives blood from pulmonary circuit.
Pulmonary Circuit
Right side of heart receives oxygenated poor blood from tissu…
Systematic Circuit
Left side of heart receives oxygenated blood from lungs.... -Pu…
36 terms
Lab 4: Heart Physiology
diastole
systole
cardiac conduction steps
pulse measurement
relaxation
contraction
-SA node fires... -excitation spreads through atrial myocardium…
count for 10 seconds, multiply by 6... -lose count and sensitivi…
diastole
relaxation
systole
contraction
23 terms
Physiology - Review of Heart and Muscles
Pre-cursor for cross-bridging
Cross-Bridging
Characteristics of Skeletal and Cardia…
Actin
-Tropomyosin blocks binding site of actin to myosin (only car…
-Entails movement of the actin ... -Tropomyosin is moved out of…
-Troponin... -Tropomyosin... -Sarcomeres... -Striated... -T-tubules
Thin filaments, attached to z- lines. Actin move
Pre-cursor for cross-bridging
-Tropomyosin blocks binding site of actin to myosin (only car…
Cross-Bridging
-Entails movement of the actin ... -Tropomyosin is moved out of…
Heart Physiology Test
Name the elements of the intrinsic con…
Describe the pathway of impulses throu…
What is the purpose of the intrinsic c…
What is an electrocardiogram?
SA node, AV node, AV bundle, bundle branches, purkinje fibers
Starts in he atria at the SA node which is the heart's pacema…
Sets the heart rate
a record or display of a person's heartbeat produced by elect…
Name the elements of the intrinsic con…
SA node, AV node, AV bundle, bundle branches, purkinje fibers
Describe the pathway of impulses throu…
Starts in he atria at the SA node which is the heart's pacema…
Lab 182 Heart Physiology
What are the specialized heart muscle…
How do the specialized heart muscle ce…
How is electrical impulse transported…
What does the ECG/EKG represent?
Pacemaker Cells
rythimically and spontaneously generate action potentials tha…
SA Node... AV Node... Av Bundle ... Bundle Branches ... Purkinje Fibers
Examines the health of the heart and electrical activity with…
What are the specialized heart muscle…
Pacemaker Cells
How do the specialized heart muscle ce…
rythimically and spontaneously generate action potentials tha…
Physio Heart Physiology
Conducting cell action potential
What happens to conducting cells?
Conducting cells
Contractile cell action potential
AP cycles in msec, autorhythmic self induced action potential…
If you increase HCN current?... If you decrease HCN current?... I…
1% of cells - Sinoatrial node, internodal pathways, atrial-ve…
time in msec... Phase 0: (-90 to 30mv), quick Na influx due to…
Conducting cell action potential
AP cycles in msec, autorhythmic self induced action potential…
What happens to conducting cells?
If you increase HCN current?... If you decrease HCN current?... I…
54 terms
Exam 3- heart physiology
Cardiac conduction system
3 characteristics of cardiac tissue
Autorhythmicity
Excitability
Made up of nodal tissues which are modified cardiac muscle ce…
1. Autorhythmicity... 2. Excitability ... 3. High conductivity
Spontaneous cycles of depolarization & repolarization in thes…
Good: the flow of action potentials in a normal ECG results f…
Cardiac conduction system
Made up of nodal tissues which are modified cardiac muscle ce…
3 characteristics of cardiac tissue
1. Autorhythmicity... 2. Excitability ... 3. High conductivity
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