Muscle

Question 1

What is the origin?

Answer 1

the end of the muscle attached to the more stationary part of the skeleton

Question 2

What is the insertion?

Answer 2

the end of the muscle attached to the skeletal part which moves

Question 3

extension

Answer 3

movement that decreases the angle of the joint

Question 4

flextion

Answer 4

movement that increases the angle of the joint

Question 5

isotonic contraction

Answer 5

muscle tension remains constant as the muscle changes length (shortens/ lengthens)

Question 6

Isometric contraction

Answer 6

muscle is prevented from shortening so tension develops at constant muscle length

Question 7

epimysium (connective tissue)

Answer 7

a sheath of fibrous elastic tissue surrounding a muscle

Question 8

perimysium

Answer 8

the sheath of connective tissue surrounding a bundle of muscle fibres

Question 9

fasicles

Answer 9

a bundle of structures, such as nerve or muscle fibres or conducting vessels in plants.

Question 10

sacromere

Answer 10

a structural unit of a myofibril in striated muscle, consisting of a dark band and the nearer half of each adjacent pale band.

Question 11

thin filament

Answer 11

actin, tropomyosin and troponin

Question 12

thick filament

Answer 12

myosin