Ch 8 Unit TestThe connective tissue that surrounds the muscle fascicle is

aponeurosis

A broad, sheet-like tendon is

antagonist

A muscle working in opposition to another muscle is

muscle fiber

A single muscle cell which combines with others to make up a muscle fascicle is called a

creatine phosphate

A substance that can be quickly used to produce ATP

muscle contraction

According to the sliding filament theory of muscle contraction thin and thick myofilaments slide past each other to cause

slow fatigue resistant muscle fibers

Activities such as swimming and running are most likely to stimulate development of

muscle tone

An example of a partial but sustained contraction would be

rapidly and relaxes more rapidly

Compared to skeletal muscle, smooth muscle contracts more

lactic acid

Contrasting aerobic and anaerobic respiration, the end product of anaerobic is

energy for the synthesis of ATP

Creatine phosphate serves to supply

arm muscle than back muscle

Fast-twitch fibers are found in higher proportions in

latent period

In a recording of a muscle twitch, the delay between the time a stimulus is applied and the time the muscle responds is called the

tetanus

Increasing the frequency of stimulation of a muscle results in

its attachment to the more stationary bone is called the origin and its attachment to the more movable bone is insertion

List 2 characteristics about when a skeletal muscle contracts

is the chemical secreted by the nerves is broken down by acetylcholinesterase increases the permeability of the cell membrane of the muscle to the sternum

List 3 characteristics of acetylcholine

muscle fibers are separated and not organized into sheets found in irisis of eyes and blood vessels contract in response to to stimulation by muscle nerves or certain hormones

List 3 characteristics of multiunit smooth muscle

require energy in order to contract require energy in order to relax relax when calcium ions are transported into sarcoplasmic reticulum

List 3 characteristics of skeletal muscles

skeletal ~ striated, voluntary 2) smooth a non-striated involuntary antorhythmic - 3 cardiac striated, involuntary autorhythmic

List the 3 muscle types and a characteristic of each

whole muscle, muscular fiber, myofibril, myofilament

List the following structures in the correct order from the outside to the inside of a skeletal muscle: whole muscle, muscle fiber, myofilament, and myofibril

motor neuron endings

Neurotransmitters are stored in vesicles within

when a muscle fiber contracts it contracts completely

The all-or-none response means

oxygen dept

The amount of oxygen needed to support the conversion of lactic acid to glucose is called the

tropomysosin

The chemical that provides calcium binding sites on actin myofilaments is

tetanus

The condition where a muscle remains contracted without relaxing due to rapid stimulation is called

fascia

The connective tissue that surrounds and separates muscles and surrounds the epimysium

perimysium

The connective tissue that surrounds the muscle fascicle is

sarcomere

The contractile unit of muscle is a

muscle twitch

The contraction of an entire muscle in response to a stimulus that causes an action potential in one or more muscle fibers is called

fast fibers

The intense exercise resulting in anaerobic respiration has the greatest effect on this type of muscle fiber

calcium

The ion needed for cross-bridging to occur is

slow fibers

The kind of muscle fibers that are most resistant to

prime mover

The muscle that plays the major role in accomplishing a particular movement is

T tubules

The part of a muscle fiber that functions as a relay between the sarcolemma and the sarcoplasmic reticulum is

m line

The part of a myofibril that anchors the myosin myofilaments in the center of the sarcomere is

H zone

The part of a myofibril that contains only myosin myofilaments is the

z line

The part of a sarcomere that forms an attachment site for actin myofilaments is

recruitment

The process that increases the number of motor units being activated is called

myofibril

The threadlike structure that extends from one end of the muscle fiber to the other is

ATP

a muscle cramp is likely due to the lack of

smooth

slow and forcefully contracting muscle with no striations is