Muscular, Skeletal, and Circulatory Systems

Question 1

What do skeletal muscles do?

Answer 1

move the skeleton

Question 2

Skeletal Muscle Characteristics

Answer 2

striated
usually attached to bones via tendons
voluntary

Question 3

What do smooth muscles do?

Answer 3

transport materials throughout the body

Question 4

Smooth Muscle Characteristics

Answer 4

no striations

involuntary

Question 5

What do cardiac muscles do?

Answer 5

contract rhythmically without wearing out

Question 6

Cardiac Muscle Characteristics

Answer 6

found in the heart
striated
involuntary

Question 7

What do osteoclasts do?

Answer 7

move through our bones and break down old cells to make room for new ones
the small tunnels they create are called haversian canals

Question 8

What do osteoblasts do?

Answer 8

construct new bone matrix inside the haversian canals

Question 9

What are osteocytes?

Answer 9

mature bone cells

Question 10

Red Blood Cells

Answer 10

use hemoglobin to carry oxygen throughout the body and remove carbon dioxide

Question 11

White Blood Cells

Answer 11

protect the body from disease causing organisms

produced in the bone marrow and lymph nodes

Question 12

Platelets

Answer 12

help blood clot near wounds

Question 13

Arteries

Answer 13

carry oxygenated blood away from the heart

Question 14

Capillaries

Answer 14

the smallest blood vessels; this is where gas exchange occurs

Question 15

Veins

Answer 15

carry deoxygenated blood to the heart

Question 16

How does blood flow through the heart?

Answer 16

Deoxygenated blood flows from the inferior and superior vena cava into the right atrium, into the right ventricle.
Blood then goes to the lungs through two pulmonary arteries.
Oxygenated blood returns to the heart through four pulmonary veins.
The blood is pushed into the left atrium, into the left ventricle.
Blood exits the heart through the aorta.