The muscular system

Striated

Cells branch frequently

moves food to stomach

nonstriated

voluntary

keeps blood circulating through the vessels

involuntary

attaches to bone

found in hollow internal organs

maintains normal blood pressure

attachment to more stationary bone

attachment to the more movable bone

The muscle unit, excluding the ends

Attaches muscle to bone

Fluid-filled sacs

Specialized contractile cells of muscle tissue

protein that forms thin myofilaments

basic functional unit of skeletal muscle

protein that forms thick myofilaments

microscopic threadlike structures found in skeletal muscle fibers

Muscles move bones by ______ on them

As a rule, only the ______ bone moves.

The ______ bone moves toward the ____bone

Of all the muscles contracting simultaneously, the one mainly responsible for producing a particular movement is called the _____ _____ for that movement.

As a prime movers contract, muscles called _______ relax.

The biceps brachii is the prime mover during bending, and the brachialis is its helper or_______.

We are able to maintain our body position because of a specialized type of skeletal muscle contraction called_____ _____.

_____ ____ maintains body posture by counteracting the pull of gravity.

A decrease in temperature, a condition known as ______ , will drastically affect cellular activity and normal body function.

Energy required to produce a muscle contraction is obtained from _____.

The point of contact between the nerve ending and the muscle fiber is called a ______ ______.

A motor neuron together with the cells it intervates is called a_____ _____

If muscle cells are stimulated repeatedly without adequate periods of rest, the strength of the muscle contraction will _____, resulting in fatigue.

The depletion of oxygen in muscle cells during vigorous and prolonged exercise is known as ____ ___.

An adequate stimulus will contract a muscle cell completely because of the "___ __ ___" theory.

When oxygen supplies run low, muscle cells produce ____ ____ and other waste products during contraction.

In a laboratory setting, a single _____ _____ can be isolated and subjected to stimuli of varying intensities so that it can be studied.

The minimal level of stimulation required to cause a fiber to contract is called the _______ _______.

______ ________ bring about movements by pulling on bones across movable joints.

A nervous system disorder that shuts off impulses to certain skeletal muscles may result in ______.

When a muscle does not shorten and no movements results, the contraction is:

Walking is an example of which type of contraction?

Pushing against a wall is an example of which type of contraction?

Endurance training is also known as:

Benefits of regular exercise include:

Contractions that "melt" together to produce a sustained contraction are called:

In most cases, isotonic contraction of muscle produces movements at a(an):

Twitch contractions can easily be seen in:

prolonged inactivity causes muscles to shrink in mass, producing a condition called:

Muscle hypertrophy can be best enhanced by a program of:

Deltoid

Tibialis anterior

Gastrocnemius

Biceps Brachii

Gluteus medius

Soleus

Iliopsoas

Pectoralis major

gluteus maximus

triceps brachii

sternocleidomastoid

trapezius

gracilis

A movement that makes the angle between two bones smaller is:

Moving a part toward the midline is:

Moving a part away from the midline is:

When you move your head from side to side as in shaking your head "no" you are______a muscle group.

______ occurs when you turn the palm of your hand from an anterior to posterior position.

Dorsiflexion refers to:

Endurance training is also called:

Increase in muscle size is called:

Muscle cells are stimulated by a nerve fiber called a:

muscles that help other muscles produce movements are called:

The connecting bridges between myofilaments form properly only if______ is present.

Physiological muscle fatigue is caused by:

The muscle's attachment to the more stationary bone is called its:

Skeletal muscle:

what are hamstring muscle?

The "____ ___ ____" principle states that when a muscle fiber is subjected to a threshold stimulus, it contracts completely.

muscle tone maintains

Thick myofilaments are formed from a protein called

The triceps brachii is on the ______ surface of the upper arm.

Tendons anchor muscles firmly to _____.

Energy required to produce a muscle contraction is obtained from ____.

______ is a movement around a longitudinal axis.

______ movements are the opposite of abduction

The gastrocnemius is responsible for plantar fexion of the foot and is sometimes referred to as the"____ _____ _____".

The zygomaticus is sometimes called the _____ muscle.