Circulatory Flashcards Preview

Bio Exam 2017 > Circulatory > Flashcards

Flashcards in Circulatory Deck (17)
Loading flashcards...
1

what blood vessels carry blood away from the heart?

arteries

2

which valve is located at the exit of the heart?

semi lunar valves

3

which part of the heart has the thickest myocardium?

left ventricle

4

what is another name for the right atrio ventricular valve?

tricuspid valve

5

the membrane sac that makes up the outer layer if the heart is called the...

pericardium

6

which chamber of the heart receives blood from the pulmonary veins?

left atrium

7

which arteries provide blood to the heart muscle itself?

coronary arteries

8

what is the largest artery in the human body?

aorta

9

where does the exchange of gases occur?

capillaries

10

the inner layer of the all blood vessels is made up of...

epithelial cells

11

the pulmonary artery carries...

oxygen poor blood

12

a red blood cells is in the renal capillaries, where would it travel next?

renal venule

13

the main role of the SA node is too

send an electrical impulse across the two atria causing the atria to contract

14

what is the order of electrical impulse in the heart?

- SA node
- AV node
-bundle of His
- Bundle of branches
- Purkinjie fibres

15

whats normal blood pressure?

120/80

16

where is blood pressure measured using a blood pressure cuff?

brachial artery

17

why do some people feel dizzy when they stand up after a period of lying down?

because the blood is having a hard time climbing up. And when your brain wants more oxygen rich blood, you might faint. This makes your head level with your heart so that its easier to flow.