The Cardiovascular System 2

36 Questions | By Dmclover73 | Updated: Mar 15, 2022 | Attempts: 136

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I created these quizzes to help me study for my A&P exams. This quiz deals with the heart chambers and valves.

Questions and Answers

1.

The _______ are the upper two chambers of the heart.
2.

The _______ are the lower two chambers of the heart.
3.

The muscular walls of the atria are _________, but are highly __________.
4.

The atria are responsible for receiving blood from the _______.
5.

The atria function as _________ between contractions.
6.

________ are small, earlike projections that are the expandable portions of the atria.
- A.
  
  Atrioventricular orifice
- B.
  
  Interatrial septums
- C.
  
  Chordae tendineae
- D.
  
  Papillary muscles
- E.
  
  Auricles
7.

The _________ is the structure that seperates the right and left atria.
- A.
  
  Auricles
- B.
  
  Interatrial septum
- C.
  
  Atrioventricular orifice
- D.
  
  Chordae tendineae
- E.
  
  Interventricular septum
8.

The ventricles are responsible for pumping blood out of the _______ and into the ________.
9.

The __________ is the structure that seperates the right and left ventricles
- A.
  
  Interventricular septum
- B.
  
  Chordae tendineae
- C.
  
  Atrioventricular orifice
- D.
  
  Interatrial septum
- E.
  
  Mitral valve
10.

The _______ is the opening between an atrium and its ventricle.
- A.
  
  Interatrial septum
- B.
  
  Interventricular septum
- C.
  
  Chordea tendineae
- D.
  
  Papillary muscle
- E.
  
  Atrioventricular orifice
11.

Each atrioventricular orifice is guarded by an _____________.
- A.
  
  Interatrial septum
- B.
  
  Atrioventricular valve
- C.
  
  Papillary muscle
- D.
  
  Interventricular septum
- E.
  
  Auricle
12.

The two A-V valves are the ________ valve located in the right side of the heart, and the ________valve (also called the __________ valve) which is located in the left side of the heart.
13.

Each AV valve consists of ______ which are flaps of fibrous tissue that project from the heart wall into the opening between the atrium and ventricle.
14.

The cusps are covered with a layer of ___________.
15.

The __________ are strong, fibrous strings that are attached to the cusps on the bottom side.
- A.
  
  Papillary muscles
- B.
  
  Auricles
- C.
  
  Semilunar valves
- D.
  
  S-V nodes
- E.
  
  Chordae tendineae
16.

The _________ are muscles that extend inward from the ventricular walls and they attach to the chordea tendineae.
17.

When the A-V valves close, the _______ and the _________ prevent the cusps from swinging back into the atria.
18.

The right atrium receives blood from two very large veins which are the ___________ and the __________.
19.

The ______ is a somewhat smaller vein that drains blood from the wall of the heart itself into the right atrium.
20.

The right atrioventricular orifice is guarded by the ______________ which is composed of three cusps and permits blood movement from the right atrium to the right ventricle and from the right ventricle to the right atrium.
- A.
  
  Mitral valve
- B.
  
  Semilunar valve
- C.
  
  Tricuspid valve
- D.
  
  Bicuspid valve
- E.
  
  Pulmonary valve
21.

The tricuspid valve folds passively out of the way when the blood pressure is _____ in the right atrium than in the right ventricle.
22.

The right ventricle pumps blood into the ______.
- A.
  
  Aorta
- B.
  
  Superior vena cava
- C.
  
  Inferior vena cava
- D.
  
  Pulmonary trunk
- E.
  
  Coronary sinus
23.

The base of the pulmonary trunk is guarded by the _____________ which also consists of 3 cusps.
24.

The pulmonary valve is _______ as the right ventricle contracts.
25.

The right ventricle has a _______ muscular wall than the left ventricle.