BIOL 2313 – Exam 2 Questions | A+ Graded
Student Submission with Key Topics
As Karla worked at her dissection, she became frustrated that several of the structures she
had to learn about had more than one name. Provide another name for the atrioventricular
bundle - ✔✔Bundle of his
The pressure that must be overcome for the ventricles to eject blood is called - ✔✔Afterload
_____________ venous return, such as might results from exercise_____________ EDV and
SV - ✔✔High, increase
Electrical signals move through the heart in a particular order which order is that? - ✔✔SA
node, internadal pathway, AV node, bundle of His, Purkinje fibers
The longer the blood vessel the greater the resistance - ✔✔True
The elastic nature of the aorta helps to maintain stable blood pressure during ventricle
diastole - ✔✔True
The foramen ovale Is an opening in the atrial septum - ✔✔False
In the pacemaker cells of the heart hyper polarization at the end of the action potential opens
slow calcium channels - ✔✔False
Cardiac output is defined as a volume of blood pumped out by each ventricle with each beat
- ✔✔False
Disastolic Pressure represents aortic pressure at its lowest level - ✔✔False
, Vasodilation is a widening of the blood vessel lumen due to the smooth muscle contraction -
✔✔False
Glueagon is a - ✔✔Positive inotropic agent
The P-wave of a normal EKG indicates - ✔✔atrial depolarization
Blood within the pulmonary veins returns to the - ✔✔left atrium
During the cardiac cycle the bicuspid valve closes - ✔✔When the ventricle is in a systole
Select the correct statement about the heart valves - ✔✔The AV valves are supported by
chordae tendinae so that they do not blow back up into the atria during the ventricular
contraction
Select the correct statement about Cardiac output - ✔✔A slow heart rate increases end
diastolic volume, stroke volume, and force of contraction.
The pericardial cavity - ✔✔Contains a lubricating fluid called pericardial fluid
Isovolumetric contraction - ✔✔Refers to the short period during ventricular systole when the
ventricles are completely closed chambers and refers to the short period during ventricular
systole when the pressure in the ventricular increase drastically
Epinephrine is a - ✔✔Negative inotropic agent
If the vagal nerves to the heart were cut the result would be - ✔✔The heart rate would
increase by about 25 bpm
Which of the following are involved in pulmonary circulation - ✔✔Right ventricle, pulmonary
artery, and left atrium
Student Submission with Key Topics
As Karla worked at her dissection, she became frustrated that several of the structures she
had to learn about had more than one name. Provide another name for the atrioventricular
bundle - ✔✔Bundle of his
The pressure that must be overcome for the ventricles to eject blood is called - ✔✔Afterload
_____________ venous return, such as might results from exercise_____________ EDV and
SV - ✔✔High, increase
Electrical signals move through the heart in a particular order which order is that? - ✔✔SA
node, internadal pathway, AV node, bundle of His, Purkinje fibers
The longer the blood vessel the greater the resistance - ✔✔True
The elastic nature of the aorta helps to maintain stable blood pressure during ventricle
diastole - ✔✔True
The foramen ovale Is an opening in the atrial septum - ✔✔False
In the pacemaker cells of the heart hyper polarization at the end of the action potential opens
slow calcium channels - ✔✔False
Cardiac output is defined as a volume of blood pumped out by each ventricle with each beat
- ✔✔False
Disastolic Pressure represents aortic pressure at its lowest level - ✔✔False
, Vasodilation is a widening of the blood vessel lumen due to the smooth muscle contraction -
✔✔False
Glueagon is a - ✔✔Positive inotropic agent
The P-wave of a normal EKG indicates - ✔✔atrial depolarization
Blood within the pulmonary veins returns to the - ✔✔left atrium
During the cardiac cycle the bicuspid valve closes - ✔✔When the ventricle is in a systole
Select the correct statement about the heart valves - ✔✔The AV valves are supported by
chordae tendinae so that they do not blow back up into the atria during the ventricular
contraction
Select the correct statement about Cardiac output - ✔✔A slow heart rate increases end
diastolic volume, stroke volume, and force of contraction.
The pericardial cavity - ✔✔Contains a lubricating fluid called pericardial fluid
Isovolumetric contraction - ✔✔Refers to the short period during ventricular systole when the
ventricles are completely closed chambers and refers to the short period during ventricular
systole when the pressure in the ventricular increase drastically
Epinephrine is a - ✔✔Negative inotropic agent
If the vagal nerves to the heart were cut the result would be - ✔✔The heart rate would
increase by about 25 bpm
Which of the following are involved in pulmonary circulation - ✔✔Right ventricle, pulmonary
artery, and left atrium
