CHAPTER 8 TEST (MUSCULAR SYSTEM)

The term that refers to ankle and foot movements is ________

Dorsiflexion

Smooth muscle is also called voluntary muscle

False

The loose connective tissue outside the muscle organs that form a flexible, sticky "packing material" between the muscles, bones, and skin is called ________

Fascia

The muscle attachement to the more movable bone is called the ________

Insertion

All muscles specialize in contraction or shortening

True

Bursae are small fluid-filled sacs that lie between some tendons and bones

True

Cardiac muscle is found in the heart

True

Tendons anchor muscles to bones

True

The production of heat is a function of the muscular system

True

There are 3 muscles that make up the hamstring muscles

True

Which of the following systems do not play a role in body movement (nervous, respiratory, circulatory, urinary)

Urinary system

Moving a part of the body away from the midline of the body is called __________

abduction

When a muscle fiber is subjected to a stimulus, it contracts completely. This is called _________

all or none law

A fluid filled sac that acts as a lubricating structure for muscle movement is a(n) ________

bursae

Tonic contractions _________

do not shorten the muscle and are important in maintaining posture

The movement that is opposite dorsiflexion is _________

plantar flexion

Which of the following muscles is not a muscle that moves the upper extremities (biceps brachii, triceps brachii, latissimus dorsi, rectus abdominis)

rectus abdominis

Striations are found in __________

skeletal and cardiac muscle

The hand position when the body is in anatomical position is _________

supination

The connective tissue that attaches muscle to bone is called ________

tendons

The thick myofilament of the skeletal muscles is made of __________

Myosin

Skeletal muscle is also called striated muscle

True

Smooth muscles are also called visceral muscles

True

Endurance training leads to _________

an increased number of blood vessels to the muscle

Strength training leads to ________

an increased number of myofilaments

The muscle contracts but does not shorten, even though an increase in muscle tension does occur. This sentence describes ___________

isometric contractions

The muscle contracts and shortens and the insertion end moves toward the point of origin. This sentence describes __________

isotonic contractions

A bursae is a saclike structure that is filled with ________

synovial fluid

The thin myofilament of the skeletal muscles is made of ___________

Actin

Moving part of the body toward the midline of the body is called _________

Adduction

The minimal level of stimulation required to cause a fiber to contract is called ___________

A threshold stimulus

The point of contact between the nerve and the muscle fibers it stimulates is called a ___________

neuromuscular junction

The muscle attachment to the more stationary bone is called the _________

origin

To produce smooth movement at a joint ________

the prime mover and synergists must contract

____________ is a quick, jerky response to a stimulus seen in isolated muscles but is not important in normal muscle activity

twitch contraction

What part of the body does the pectoralis major move

upper extremities

Another name for smooth muscle is _________

visceral muscle

Another name for skeletal muscle is ________

voluntary muscle