Describe the Anatomy & Physiology of the Neuromuscular System Flashcards

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1
Q

The Neuromuscular System integrates/compromises:

A

Muscles and Nerves

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2
Q

The Neuromuscular System controls:

A

Involuntary and Voluntary Movement

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3
Q

What are Nerves?

A

Long bundles of axons that transmit signals from the central nervous system

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4
Q

Signals start as:

A

Electrical impulses generated at the end of nerve cells

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5
Q

Impulses travels along the ___ and then is transmitted to the next cell using ___ ___ secreted into the synapse from the ___ ___.

A

Axon, Chemical Neurotransmitters, Axon Terminals

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6
Q

Nerves ___ and ___ signals in the Neuromuscular System.

A

Send, Receive

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7
Q

Sensory Nerves or:

A

Afferent Nerves

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8
Q

Sensory (Afferent) Nerves send messages to the:

A

Central Nervous System

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9
Q

Motor Nerves or:

A

Efferent Nerves

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10
Q

Motor (Efferent) Nerves send messages to the:

A

Muscles

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11
Q

Autonomic Nervous System or:

A

Involuntary

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12
Q

The Autonomic (Involuntary) Nervous System controls:

A

Involuntary actions involving cardiac and smooth muscle such as heart rhythm, breathing, and digestion

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13
Q

Voluntary Nerve signals:

A

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

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14
Q

What are the three types of muscles?

A

Skeletal, Smooth, and Cardiac

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15
Q

What do Skeletal Muscles attach to and are involved with?

A

They attach to bones and are involved in the movement of bones

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16
Q

Where can Smooth Muscles be found?

A

Stomach, Blood Vessels, and Intestines

17
Q

Where can Cardiac Muscles be found?

A

The heart

18
Q

What do muscles contain and are made of?

A

Muscles contain long myofibrils made of sarcomere units, each consisting of long strands of proteins called actin and myosin

19
Q

Actin:

A

Thin filaments

20
Q

Myosin:

A

Thick filaments

21
Q

Each muscle fiber is connected to:

A

A nerve fiber

22
Q

For the entire muscle to move, it takes:

A

Effort by many nerves and fibers and the use of ATP to power the contraction

23
Q

ATP:

A

Adenosine Triphosphate

24
Q

When a muscle is relaxed, ___ and ___ ___ are not attached.

A

Myosin, Actin Filaments

25
Q

When muscles contract, the filaments:

A

Bind and are pulled together

26
Q

Skeletal Muscles work by:

A

Contracting

27
Q

How does the Nervous System work?

A

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 a relaxation of the muscle. These two basic motions are responsible for all muscle movement

28
Q

What allows muscles to receive a signal and respond with the appropriate magnitude and movement?

A

Receptors

29
Q

What disorders can disrupt the signal and response?

A

Muscle strain and sprain to muscular dystrophy