Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
BIOL G220 Unit 4 Lecture Exam Review B
Test Description: Lecture 21 material (heart)
Instructions: Answer all questions to get your test result.
1) the human heart beats, on average, approximately
A
80 rpm
B
40 times per second
C
360 times per hour
D
70 times per minute
2) the human heart is essentially two co-joined pumps: the one on the left pumps blood to the ____, while the one on the right pumps blood to the _____
A
body, soul
B
body, lungs
C
lungs, body
D
body, heart itself
3) the heart is located in the ______, just deep to the _____
A
mediastinum, sternum
B
thoracocardial fossa, pectoralis minor
C
superior thoracic, clavicles
D
superior abdominal, liver
4) The human heart is surrounded by a set of membranes collectively known as the
A
myocardial envelope
B
pericardium
C
epicardialis
D
cardiac sac
5) the outermost layer of the pericardium is
A
all of the answers are true
B
actually two layers with elastic fibers between them
C
made of smooth muscle
D
thick and fibrous
6) the inner layer of the pericardium is
A
all of the answers are true
B
Serous, with fluid filled spaces
C
comprised of two layers, the parietal and viceral
D
has an innermost layer also known as the epicardium
7) The heart 'wall' consists of 3 layers: from the outermost to the innermost these are
A
stucco, plaster, concrete
B
epicardium, myocardium, endocardium
C
endocardium, mesocardium, epicardium
D
epicardium, mesocardium, tunica intima
8) the heart contains a fibrous 'skeleton', the anulus fibrosus, which consists of four interconnected fibrous rings that encircle the base of the valves: this is made of
A
dense connective tissue
B
reticular and elastic fibers, but not collagen
C
cardiac muscle tissue
D
fibrocartilage
9) the purpose of valves in the heart is
A
to prevent premature contraction of the ventricles
B
to ensure a one-way flow of blood
C
to regulate blood pressure
D
to allow blood to flow into the heart on one stroke, and out to the lungs on the next
10) the valves in the heart fall into two main categories based on location/structure, which are intimately connected to the forces placed on said valves- they are the
A
arterial and venous valves
B
semilunar valves and atrioventricular valves
C
bicuspid and tricuspid valves
D
pulmonary and systemic valves
11) the atrioventricular valves are anchored to the walls of the ventricles with several chordae tendinae and papillary muscles: why?
A
to allow the muscles pull on the valves, thus manually opening them so blood can flow out
B
to withstand the pressure of ventricular contraction without prolapsing
C
to generally confuse the heck out of anatomy students, and, if they are inadequately prepared, cardiologists.
D
to prevent blood from flowing between the left and right ventricles, and the left and right atria
12) The heart valve that needs to withstand the greatest pressure is the
A
mitral, aka the left atrioventricular or bicuspid valve
B
the right semilunar, or pulmonary valve
C
the left semilunar, or aortic valve
D
the tricuspid, or right atrioventricular valve
13) which chamber of the heart has the thickest wall?
A
Left Ventricle
B
Right Atrium
C
Right Ventricle
D
Left Atrium
14) The heart itself is supplied by blood vessels collectively known as
A
coronary arteries
B
coronary veins
C
endocardiomyovasculature
D
great cardiac vessels
15) the muscle fibers in the heart are connected end to end via
A
thickened Z discs
B
chordae tendinae
C
intercalated discs
D
cardiofibrils
16) the unique junctions between cardiac muscle cells allow them to
A
conduct impulses
B
contract without shortening: they only get thicker so as to squeeze out the blood in a pumping action
C
share mitochondria
D
spontanously contract
17) the heart has a 'pacemaker' a bundle of cells that steadily depolarize between action potentials, making them
A
autorythmic
B
autophasic
C
autotonic
D
autonomic
18) the pacemaker of the heart, where contractile impulses originate, is in the
A
Sino Atrial (SA) Node
B
Purkinje fibers
C
Bundle of His
D
Atrio Ventricular (AV) Node
19) the heart rate is ________ by input from the sympathetic nervous system through the ________
A
increased, posterior root ganglion
B
decreased, rami communicates
C
increased, sympathetic trunk
D
modified, pineal gland
20) the heart rate is ________ by input from the parasympathetic nervous system through everyone's favorite cranial nerve, #__. the ______
A
decreased, 5:Trochlear
B
decreased, 10: Vagus
C
stabilized, 11: Accessory
D
increased, 9: Glossopharyngeal
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?