circulatory system Flashcards
1
Q
- The purpose of the serous fluid in the pericardial cavity is
A
to decrease friction between the layers of the heart as it contracts
2
Q
- What is the main function of platelets?
A
helping your blood clot
3
Q
- The purpose of the serous fluid in the pericardial cavity is
A
to decrease friction between the layers of the heart as it contracts
4
Q
- Which of the following is true for both cardiac and skeletal muscles?
A
Can spontaneously depolarize without input from the nervous system
5
Q
- What is the blood type of a person whose plasma contains no clumping proteins?
A
type AB
6
Q
- Place the following events in sequence: A) the left atrium fills with blood; B) the valve between the atria and ventricles close; C) Blood is pushed out from the right ventricle
A
A, B, C
7
Q
- How long does it take for your heart to pump blood through your entire body?
A
about seven minutes
8
Q
- Which of the following statements about mature RBS’s is not true?
A
no nuclei
9
Q
- What type of tissue in the heart pumps blood throughout the body?
A
muscle tissue
10
Q
- The ____ side of the heart is the _____ circuit and pumps oxygen-rich blood to the _____.
A
left; systemic; body
11
Q
- What 3 factors affect blood flow? Which one affects it the most?
A
diameter of blood vessels, length of blood vessel, viscosity (affects the most)
12
Q
- What do RBC’s carry to body cells?
A
oxygen
13
Q
- Where is the AV valve?
A
between the atrium and ventricle
