Muscular System

Question 1

Muscle

Answer 1

Connective tissue made up of contractile cells or fibers that produce movement

Question 2

Skeletal Muscle

Answer 2

A muscle composed of cylindrical, multinucleated, and striated fibers that works together with the bones to enable movement

Question 3

Smooth Muscle

Answer 3

A spindle-shaped, involuntary muscle that causes the contraction of blood vessels and viscera such as the intestines and the stomach.

Question 4

Cardiac Muscle

Answer 4

A special striated muscle of the myocardium that pumps blood through the heart and blood vessels

Question 5

Muscle Fiber

Answer 5

Any individual muscle cell

Question 6

Myofibril

Answer 6

A slender, striated strand of contractile fiber within the skeletal and cardiac muscle cells

Question 7

Epimysium

Answer 7

The fibrous sheath that surrounds muscle tissue

Question 8

Endomysium

Answer 8

The fibrous sheath that surrounds each individual muscle cell

Question 9

Fascia

Answer 9

A sheet of fibrous connective tissue that covers, separates or supports muscle

Question 10

Tendon

Answer 10

A band of dense fibrous connective tissue, generally white in color, attaches muscle to bone.

Question 11

Ligament

Answer 11

A band or sheet of fibrous tissue that connects two or more bones, cartilages or other structures

Question 12

Sacroplasm

Answer 12

The cytoplasm of muscle fiber

Question 13

Contraction

Answer 13

A shortening or tightening of a muscle.

Question 14

Actin

Answer 14

A protein that forms the thin fibrils in muscle fibers

Question 15

Myosin

Answer 15

A skeletal and cardiac protein that interacts with actin to cause muscle contraction

Question 16

Flexion

Answer 16

A bending that decreases the angle between 2 bones of a joint

Question 17

Extension

Answer 17

Straightening that increases the angle between two bones of a joint