Shared Flashcard Set

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ANEADRA!!!
Dr. Khalil
25
Biology
10/27/2011

Additional Biology Flashcards

 


 

Cards

Term

What is the average normal pH of blood? 

Definition
7.4
Term




Which blood type is called the universal donor? 

Definition

0

Term

Which of the following is true about blood plasma? 

Definition
its about 90% water
Term
The left ventricular wall of the heart is thicker than the right wall in order to:
Definition
pump blood with greater pressure
Term

The P wave of a normal electrocardiogram indicates: 

Definition
atrial depolarization
Term

Blood within the pulmonary veins returns to the: 

Definition
left atrium
Term

Small muscle masses attached to the chordae tendineae are the

Definition
papillary muscles
Term
Blood is carried to the capillaries in the myocardium by way of
Definition
coronary arteries
Term
Select the correct statement about heart anatomy
Definition

The point between the fifth and sixth ribs just below the left nipple is referred to as the point of maximal intensity (PMI).





Term
What is the foramen ovale
Definition
connects the two atria in the fetal heart
Term

Blood enters which of these vessels during ventricular systole? 

Definition

aorta and pulmonary arteries

(both A&D are correct)

Term

Which of the following is not part of the conduction system of the heart? 

Definition
AV valve
Term
The tricuspid valve is closed
Definition
when the ventricle is in systole
Term
When holding a dissected heart in your hands, it is easy to orient the right and left side by
Definition
noticing the thickness of the ventricle walls
Term

)


Select the correct statement about the heart valves. 

Definition

C)


The AV valves are supported by chordae tendineae so that they do not blow back up into the atria during ventricular contraction.

Term




Select the correct statement about the structure of the heart wall

Definition

A)


The myocardium is the layer of the heart that actually contracts.

Term

)


During the period of ventricular filling: 

Definition

B)


blood flows passively through the atria and the open AV valves

Term

)


Stenosis of the mitral valve may initially cause a pressure increase in the:

Definition
pulmonary circulation
Term




Which statement best describes arteries? 

Definition

)


All carry blood away from the heart

Term

Which tunic of an artery contains endothelium? 

Definition
tunica interna (intima)
Term

)


Which of the following is true about veins? 

Definition

B)


Veins are called capacitance vessels or blood reservoirs.

Term

)


The hepatic portal vein: 

Definition

)


carries nutrient-rich blood to the liver.

Term




The term ductus venosus refers to: 

Definition

)


a fetal shunt that allows blood to bypass the liver.

Term

The thymus is most active during: 

Definition
childhood
Term




Antibodies that act against a particular foreign substance are released by

Definition
plasma cells