Transcript Coverings, Layers & Chambers Pathway of Blood Heart Valves

Ch. 18
Heart Anatomy
JEOPARDY!
Coverings,
Layers &
Chambers
Pathway of
Blood
Heart
Valves
Properties
of Cardiac
Muscle
RANDOM!
10
10
10
10
10
20
20
20
20
20
30
30
30
30
30
40
40
40
40
40
50
50
50
50
50
Final Jeopardy
Coverings, Layers & Chambers : 10
The inner lining of the heart?
Endocardium
Coverings, Layers & Chambers : 20
The heart muscle.
Myocardium
Coverings, Layers & Chambers :
30
Serous layer covering the heart
muscle.
Epicardium
10 pt. BONUS: Another name for this
layer.
Visceral layer
Coverings, Layers & Chambers :
40
The outermost layer of the serous
pericardium.
Parietal Layer
Coverings, Layers & Chambers :
50
Which layer of the heart actually
contracts?
Myocardium
Pathway of Blood: 10
True or False:
The left side of the heart pumps
the same volume as the right.
TRUE
Pathway of Blood: 20
Why is the left ventricular wall
thicker than the right wall of
the heart?
L.V. pumps blood with greater
pressure.
Pathway of Blood: 30
Blood flows where after being
pumped out of the right
ventricle?
Lungs
Pathway of Blood: 40
Vessels that return blood to the
heart.
Pulmonary veins
Pathway of Blood : 50
Cardiac veins return blood to
this location before the blood
enters the right atrium.
Coronary Sinus
Heart Valves: 10
Prevents backflow into the left
ventricle
Aortic valve
Heart Valves: 20
Prevents backflow into the left
atrium
Mitral (bicuspid) vlave
Heart Valves: 30
TRUE or FALSE:
The bicuspid valve has chordae
tendinae but the tricuspid valve
does not.
FALSE – they both have
chordae tendinae
Heart Valves: 40
TRUE or FALSE:
Trabeculae carne are found in
the ventricles and not in the
atria.
TRUE
Heart Valves: 50
The AV valves are supported by
these structures so they do not
blow back up into the atria
during ventricular contraction.
Chordae tendineae
Properties of Cardiac Muscle: 10
Compare Skeletal & Heart Muscle:
Answer: Skeletal Muscle only,
Cardiac Muscle only, or Both
Has Striations
Both
Properties of Cardiac Muscle: 20
Compare Skeletal & Heart Muscle:
Answer: Skeletal Muscle only,
Cardiac Muscle only, or Both
Contains self-excitable cells
Cardiac Muscle only
Properties of Cardiac Muscle: 30
Why is the heart a functional
syncytium?
The heart contracts as a unit
(all or none) or it doesn’t
contract at all.
Properties of Cardiac Muscle : 40
What cell membrane junction
allows the myocardium to
function as a functional
syncytium?
Gap junctions
Properties of Cardiac Muscle: 50
TRUE or FALSE:
Cardiac muscle has more
mitochondria and depends less
on a continual supply of
oxygen than does skeletal
muscle.
FALSE – O2 is essential
RANDOM! : 10
Where does the myocardium
receive its blood supply from?
Coronary arteries
RANDOM! : 20
What structure
is labeled
with the star?
Right Atrium
RANDOM! : 30
What valve is between the left
atrium and the left ventricle?
Mitral (bicuspid) valve
RANDOM! : 40
What is the chamber that
receives blood from the
superior and inferior vena
cava?
Right atrium
RANDOM! : 50
What structures
are labeled in
the picture?
Chordae
tendinae
Final Jeopardy
Name the
laeled
structure.
Papillary
muscle