SCIENCE 1.5

Question 1

a complex system that integrates muscles and nerves

Answer 1

neuromuscular system

Question 2

long bundles of axons that transmit signals from the central nervous system; they send and receive signals in the neuromuscular system

Answer 2

nerves

Question 3

nerves that send messages to the Central nervous system

Answer 3

afferent nerves (sensory)

Question 4

nerves that send messages out to the muscles

Answer 4

efferent nerves (motor)

Question 5

the nervous system that controls involuntary actions involving cardiac and smooth muscle, such as heart rhythm, digestion, and breathing

Answer 5

autonomic nervous system (involuntary)

Question 6

makes skeletal muscles do a deliberate action such as walking, throwing, or typing

Answer 6

voluntary nerve signals

Question 7

contains long myofibrils made of sacomere units, each consisting of long strands of proteins called actin and myosin

Answer 7

muscles

Question 8

a nerve fiber that carries a nerve impulse away from the neuron body cell

Answer 8

axon

Question 9

the process leading to shortening and or development of tension in a muscle

Answer 9

contraction

Question 10

the structure that allows neurons to pass signals to other neurons, muscles or glands

Answer 10

synapse

Question 11

the nervous system sends a signal to a muscle. Actin and myosin proteins in the muscle slide past each other creating either a contraction or relaxation of the muscle. Each muscle fiber is connected to a nerve fiber.

Answer 11

how the neuromuscular system works