Muscular System

Question 1

Functions of the muscular system

Answer 1

movement, posture maintenance, stabilization of joints, generation of heat, protection of some internal organs

Question 2

Types of muscles

Answer 2

cardiac, visceral/smooth, skeletal

Question 3

cardiac

Answer 3

forms the walls of the heart and contract to circulate blood

Question 4

visceral/smooth

Answer 4

found in the internal organs of the body such as the digestive system, respiratory system, blood vessels, and eyes

Question 5

skeletal

Answer 5

40% of the body, attach to and cover the bony skeleton, cause movement

Question 6

tendons

Answer 6

attach bone to muscle

Question 7

ligaments

Answer 7

attach bone to bone

Question 8

Muscle fibers stimulated by nerves ______ and cause _______

Answer 8

contract, movement

Question 9

there are over _____ muscles in our body

Answer 9

600

Question 10

muscles are ____ of total body weight

Answer 10

45%

Question 11

bundles of muscle fibers help, together with the ___________ tissue

Answer 11

connective

Question 12

excitability

Answer 12

ability to receive and respond to stimulus

Question 13

contractibility

Answer 13

ability to shorten forcibly

Question 14

extensibility

Answer 14

ability to be stretched

Question 15

elasticity

Answer 15

ability to resume resting length

Question 16

automaticity

Answer 16

ability of muscle to contract without a nerve supply