Musculoskeletal System

Question 1

skeletal muscle or striated

Answer 1

attaches primarily to bone and is responsible for locomotion, movement, and support of the skeleton
called striated because alernating light and dark bands are visible when examined under a microscope
voluntary

Question 2

smooth muscle

Answer 2

found within the walls of internal organs of the digestive system, urinary system, and blood vessels
involuntary

Question 3

cardiac muscle

Answer 3

only found in the heart

involuntary

Question 4

extensibility

Answer 4

ability of muscle tissue to be stretched without being damaged

Question 5

contractility

Answer 5

ability for muscle to contract

Question 6

elasticity

Answer 6

muscles ability to be streteched, compressed, or distortedand then return to its normal state

Question 7

excitability

Answer 7

the ability to respond to certain stimuli by producuing electrical signals

Question 8

muscular system

Answer 8

refers to the skeletal muscular system which does not includ the smooth and cardaic muscle tissue

Question 9

origin

Answer 9

the point of muscle attachment on the stationary bone

Question 10

insertion

Answer 10

the point of muscle attachment on the mobile bone

Question 11

belly

Answer 11

the fleshy middle portion of the muscle between the orgin and insertion
responsible for doing most of the work during contraction of the muscle

Question 12

antagonistic muscle groups

Answer 12

skeletal muscles that work in groups
they are arranged in opposing pairs
ine pair contracts (prime mover or agonist) while the other pair relaxes (antagonist)

Question 13

synergists

Answer 13

muscle groups that aid movement of prime mover muscles and prevent unwanted movement across intermediate joints

Question 14

fixators

Answer 14

muscle groups that stablize the orgin of the prime mover

Question 15

compartment

Answer 15

group of muscles associated with blood vessels and associated nerves