A&P of Neuromuscular System

CNS consists of the _______ and _______.

the PNS consists of an extensive network of ___________.

spinal nerves carry ____________ information towards the spinal cord and brain and __________ information away from the brain and spinal cord.

once a stimulus is processed in the CNS, the peripheral motor nerves send efferent impulses to both ________ and _______ divisions of the nervous system to carry out a response.

______ division is voluntary and controls the skeletal muscles of the body.

________ division is involuntary and controls the visceral or cardiac muscles of organ systems.

information gathered, processed, and passed to muscles travels as electrical impulses of the nervous system along specialized cells called ________.

The anatomy of a typical neuron includes a _______, a nucleus and most organelles, and _____ that extend from the body.

Nerve fibers are dendrites and axons. ______ are receptor extensions that receive nerve impulse. ______ is a long singular tail-like extension, which sends impulses from the neuron body to the branching axon terminal.

Once nerve impulse reaches the axon terminal, it stimulates the release of chemical neurotransmitters into a gap structure known as the _______.

_______ is the structure that allows neurons to pass signals on to other neurons, muscles, or glands.

_______ neurons carry afferent impulses towards the CNS, and ______ neurons carry efferent impulses from the CNS out to muscles.

Muscle fibers contain countless smaller myofibrils. Name the two types of contractile protein filaments in myofibrils.

The ______ division of the neuromuscular system controls the contraction/relaxation of visceral reflexes.

In ______, the motor neurons degenerate and die, leading to loss of voluntary muscle movement.

________ is a group of genetic disorders in which abnormal genes interfere with the production of proteins needed to form healthy muscles.

with ____ and _______, both voluntary and involuntary muscles are compromised.