Muscular systems

Question 1

excitability

Answer 1

capacity of muscle to respond to a stimulus

Question 2

Contractility

Answer 2

ability of muscle to shorten and generate a pulling force

Question 3

Extensibility

Answer 3

muscle can be stretched back to its original length

Question 4

Elasticity

Answer 4

ability of muscle to recoil to original resting length after stretched

Question 5

types of muscle

Answer 5

Skeletal, smooth and cardiac

Question 6

Skeletal muscle

Answer 6

attached to bones, makes up for 40% of body weight in humans, movement control over face, voluntary movement

Question 7

Connective tissue of muscle

Answer 7

Epimysium - Perimysium - Endomysium

Question 8

Epimysium

Answer 8

Dense regular connective tissue surrounding muscle, separates muscle from tissues and organs, connected to deep fascia

Question 9

Perimysium

Answer 9

Collagen and elastic fibres surrounding muscle fibres called fascicle

Question 10

Endomysium

Answer 10

loose CT that surrounds individual muscle fibres

Question 11

All there layers of muscle come together to form what

Answer 11

a tendon or aponeurosis

Question 12

Sarcomere

Answer 12

basic unit of skeletal muscle

Question 13

Myosin (thick) myofilaments

Answer 13

myosin head, can bind to actin active sites, can break down ATP releasing energy

Question 14

Actin (thin) filaments