Bio 265 lecture Exam 1 | Actual Latest
study | Questions with verified Answers
65 - ANSW-at what age does the heart begin to decrease in size
pulmonary circulation - ANSW-system that pumps blood from the body to the lungs
systemic circulation - ANSW-system that pumps blood from the lungs to the body
1. generate blood pressure
2. routing blood
3. ensure one way flow
4. regulation of blood supply - ANSW-function of the heart
balloon sac the surround that heart - ANSW-what is the pericardium
heart attack - ANSW-what is the more common name for myocardial infarction
pericardium - ANSW-just study it
pericarditis - ANSW-inflammation of the serous pericardium. can result from infection, diseases of the
connective tissue or radiation from treatment from cancer. causes extreme pain in back and chest and is
commonly mistaken as a heart attack. what im I?
cardiac tamponade - ANSW-fluid or blood accumulates in pericardial cavity compressing heart from out
side. this pressure keeps the heart from refilling after contraction. if the fluid is not removed quickly the
person we die. causes are rupture of heart wall following a heart attack, trauma such as a car accident.
visceral pericardium - ANSW-inner layer of balloon
parietal pericardium - ANSW-outer layer of balloon
1. epicardium (adpose tissue)
2. myocardium (cardiac muscle)
3. endocardium (trabeculae carneae) - ANSW-layers of heart wall
endocardium - ANSW-what tissue covers valves of the heart
right - ANSW-which coronary artery is small. left or right?
artery - ANSW-goes away from heart
vein - ANSW-towards heart
120 - ANSW-left side of heart generates_________ mm pressure
200 - ANSW-during exercise pressure in heart can get up to____________
improper function of valves. - ANSW-heart murmur is caused by
valvular stenosis - ANSW-heart murmur caused by stiffness is called
auscultation - ANSW-art of listening to body sounds via a stethoscope is called
valvular regurgitation - ANSW-heart murmur caused by valve not closing properly is called
T - ANSW-true or false. heart murmurs can be heard commonly in young children, after hard exercise or
thin persons.
pericardial fluid - ANSW-fluid between parietal and visceral pericardium (balloon) is called
cardiac tamponade - ANSW-a leak of pericardial fluid is called
, intercalated disc - ANSW-the _______ connect cardiac muscle end to end
desmosomes - ANSW-in the intercalated disc ________ tightly hold them together
gap junctions - ANSW-what in the intercalated disc allow communication (action potential) to pass
through.
1. sarcomeres in cardiac not as organized.
2. cardiac has a single nucleus
3.t-tubeles are larger in cardiac
4.sarcoplasmic reticulum is less extensive in cardiac.
5.cardiac have more mitochondria - ANSW-difference between cardiac and skeletal muscle is
70-80% - ANSW-what % does cardiac muscle absorb from blood
Na+ or sodium - ANSW-depolarization is caused by the opening of voltage gated _____channels and
rapid movement of _______into the cell
K+ or potassium - ANSW-repolarization is due to ________channels finally opening and a disfuse of
______out of the cell making it negative.
K+ or potassium - ANSW-resting potential in cardiac is found at -90 due to special _______channels that
open during repolar and close during depolar
1. complete refactory, with out the heart relaxing the heart would stay contracted.
2. contraction needs ca+ - ANSW-plateau is important because..
Hyperpolarized activated cyclic nucleotide gated - ANSW-what does HCN channel mean?
60-80 min - ANSW-What is the SA intrinsic rate
40 min - ANSW-What is the AV intrinsic rate
20 min - ANSW-What is the purkinje fibers intrinsic rate
ectopic focus - ANSW-what is it called when a pace maker grows in a place other than the Nodes?
ectopic foci - ANSW-if the SA node becomes compromised ________ can begin to control the heart. this
is bad because ________ is not controled by the nervous system
sarcoplasmic reticulum - ANSW-what releases more Ca+ when activated by calcium
ca+ and Na+ - ANSW-a exchange pump exchanges 1 ____ for every 3 ______
atria contract - ANSW-what accurs during PR wave
ventricle to contract and relax. - ANSW-QT wave is the time
top off. last 30%into ventricle. caused by atria contraction - ANSW-what is preload
bicupit valve closing. lub - ANSW-what makes the first sound heard in heart and what sound is it
aorta valve closing. dub - ANSW-what makes the second sound heard in heart and what sound is it
is rushing of blood - ANSW-what makes the third sound heard in heart and what sound is it
relaxation - ANSW-what is diastole
contraction. - ANSW-what is systole
ventricular diastole - ANSW-if you use the term diastole alone it is assumed to be
contraction of ventricle. - ANSW-what is enjection
contraction of atria - ANSW-what is atrial systole
study | Questions with verified Answers
65 - ANSW-at what age does the heart begin to decrease in size
pulmonary circulation - ANSW-system that pumps blood from the body to the lungs
systemic circulation - ANSW-system that pumps blood from the lungs to the body
1. generate blood pressure
2. routing blood
3. ensure one way flow
4. regulation of blood supply - ANSW-function of the heart
balloon sac the surround that heart - ANSW-what is the pericardium
heart attack - ANSW-what is the more common name for myocardial infarction
pericardium - ANSW-just study it
pericarditis - ANSW-inflammation of the serous pericardium. can result from infection, diseases of the
connective tissue or radiation from treatment from cancer. causes extreme pain in back and chest and is
commonly mistaken as a heart attack. what im I?
cardiac tamponade - ANSW-fluid or blood accumulates in pericardial cavity compressing heart from out
side. this pressure keeps the heart from refilling after contraction. if the fluid is not removed quickly the
person we die. causes are rupture of heart wall following a heart attack, trauma such as a car accident.
visceral pericardium - ANSW-inner layer of balloon
parietal pericardium - ANSW-outer layer of balloon
1. epicardium (adpose tissue)
2. myocardium (cardiac muscle)
3. endocardium (trabeculae carneae) - ANSW-layers of heart wall
endocardium - ANSW-what tissue covers valves of the heart
right - ANSW-which coronary artery is small. left or right?
artery - ANSW-goes away from heart
vein - ANSW-towards heart
120 - ANSW-left side of heart generates_________ mm pressure
200 - ANSW-during exercise pressure in heart can get up to____________
improper function of valves. - ANSW-heart murmur is caused by
valvular stenosis - ANSW-heart murmur caused by stiffness is called
auscultation - ANSW-art of listening to body sounds via a stethoscope is called
valvular regurgitation - ANSW-heart murmur caused by valve not closing properly is called
T - ANSW-true or false. heart murmurs can be heard commonly in young children, after hard exercise or
thin persons.
pericardial fluid - ANSW-fluid between parietal and visceral pericardium (balloon) is called
cardiac tamponade - ANSW-a leak of pericardial fluid is called
, intercalated disc - ANSW-the _______ connect cardiac muscle end to end
desmosomes - ANSW-in the intercalated disc ________ tightly hold them together
gap junctions - ANSW-what in the intercalated disc allow communication (action potential) to pass
through.
1. sarcomeres in cardiac not as organized.
2. cardiac has a single nucleus
3.t-tubeles are larger in cardiac
4.sarcoplasmic reticulum is less extensive in cardiac.
5.cardiac have more mitochondria - ANSW-difference between cardiac and skeletal muscle is
70-80% - ANSW-what % does cardiac muscle absorb from blood
Na+ or sodium - ANSW-depolarization is caused by the opening of voltage gated _____channels and
rapid movement of _______into the cell
K+ or potassium - ANSW-repolarization is due to ________channels finally opening and a disfuse of
______out of the cell making it negative.
K+ or potassium - ANSW-resting potential in cardiac is found at -90 due to special _______channels that
open during repolar and close during depolar
1. complete refactory, with out the heart relaxing the heart would stay contracted.
2. contraction needs ca+ - ANSW-plateau is important because..
Hyperpolarized activated cyclic nucleotide gated - ANSW-what does HCN channel mean?
60-80 min - ANSW-What is the SA intrinsic rate
40 min - ANSW-What is the AV intrinsic rate
20 min - ANSW-What is the purkinje fibers intrinsic rate
ectopic focus - ANSW-what is it called when a pace maker grows in a place other than the Nodes?
ectopic foci - ANSW-if the SA node becomes compromised ________ can begin to control the heart. this
is bad because ________ is not controled by the nervous system
sarcoplasmic reticulum - ANSW-what releases more Ca+ when activated by calcium
ca+ and Na+ - ANSW-a exchange pump exchanges 1 ____ for every 3 ______
atria contract - ANSW-what accurs during PR wave
ventricle to contract and relax. - ANSW-QT wave is the time
top off. last 30%into ventricle. caused by atria contraction - ANSW-what is preload
bicupit valve closing. lub - ANSW-what makes the first sound heard in heart and what sound is it
aorta valve closing. dub - ANSW-what makes the second sound heard in heart and what sound is it
is rushing of blood - ANSW-what makes the third sound heard in heart and what sound is it
relaxation - ANSW-what is diastole
contraction. - ANSW-what is systole
ventricular diastole - ANSW-if you use the term diastole alone it is assumed to be
contraction of ventricle. - ANSW-what is enjection
contraction of atria - ANSW-what is atrial systole
