9muscular system

Question 1

Striated and voluntary; found attached to bone; the only type of muscle that is voluntary; must be supplied by a motor nerve

Answer 1

Skeletal Muscle

Question 2

Found in the walls of organs or viscera; found in the walls of blood vessels; nonstriated and involuntary; only type of muscle that is nonstriated

Answer 2

Smooth Muscle

Question 3

Striated and involuntary; found in the heart

Answer 3

Cardiac Muscle

Question 4

Cordlike structure that attaches muscle to bone

Answer 4

Tendon

Question 5

Small bundles of muscle fibers

Answer 5

Fascicles

Question 6

Connective tissue that surrounds individual muscle fibers

Answer 6

Endomysium

Question 7

Flat sheetlike fascia that attaches muscle to muscle to muscle or muscle to bone

Answer 7

Aponeurosist

Question 8

Connective tissue that surrounds a whole skeletal muscle

Answer 8

Epimysium

Question 9

Series of contractile units that make up each myofibril; extends from z line to z line

Answer 9

Sarcomere

Question 10

Thin protein filaments that extend toward the center of the sarcomere from the z lines; The troponin-tropomyosin complex and this protein are called the thin filament

Answer 10

Actin

Question 11

Thick protein filaments whose “heads” form cross-bridges when they interact with the thin filaments

Answer 11

Myosin

Question 12

Calcium is stored within this structure un the relaxed muscle

Answer 12

Sarcoplasmic Reticulum (SR)

Question 13

An extension of the sarcolemma or cell membrane that penetrates into the interior of the muscle; the electrical signal runs along this membrane toward the sarcoplasmic reticulum

Answer 13

T tubule

Question 14

The temporary connection formed when the myosin heads interact with the actin, causing muscle contraction

Answer 14

Cross-bridge