The Circulatory System

Name: ______________________   Date: ____________

Write the missing letters on the lines to finish each word.

1.
c i r c a t r
Of or relating to ___
2.
o x y e
Gas in the air that we need to breathe
3.
c h m r s
An enclosed volume in the body (plural)
4.
h r t
Organ that pumps blood around the body
5.
c r b o d i o i d
A heavy odorless colorless gas formed during respiration and by the decomposition of organic
6.
v e r i c l
A chamber of the heart that receives blood from an atrium and pumps it to the arteries
7.
v e s l s
8.
s t e m
Instrumentality that combines interrelated interacting artifacts designed to work as a coherent
9.
a t i
10.
b l o
Red liquid pumped around the body by the heart
11.
b o d
The entire physical structure of an organism
12.
n u t i t s
Any substance that can be taken in by a green plant and used in organic synthesis (plural)
13.
c p i l l r e
Any of the minute blood vessels connecting arterioles with venules (plural)
14.
p s s u e
Force pushing on something
15.
v i s
A blood vessel that carries blood from the capillaries toward the heart (plural)
16.
r e d b o o l l s
A mature ___ ___ that contains hemoglobin to carry oxygen to the bodily tissues (plural)
17.
p u m p i
18.
a r e r i
A blood vessel that carries blood from the heart to the body (plural)
19.
p u e
The rate at which the heart beats
20.
c i c u l a e