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 50Final 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.

Epicardium10 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 ventricleAortic 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 StriationsBoth

Properties of Cardiac Muscle: 20

Compare Skeletal & Heart Muscle:

Answer: Skeletal Muscle only, Cardiac Muscle only, or BothContains 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