BIO 115 Fall 2012 Chap 7 & 8

___ helps the filiments slide apart.

___ filiament has 2 strands and is actin.

____ filament is myosin.

I bands are ___

A bands are ____

H zone is in the center of the ___ ___.

When the muscle contracts the ___ ___ and the ___ ___ disapear.  This is called the ___ ___ Theory.

the two systems of the Neuromuscular junction are ___ and ___.

The ___ ___ has a neurotransmitter called the acetylcholine.

The ___ ___ is a gap seperating the axon from the ___.

The ___ reticulum is the ___ reticulum.

___ run the length of the muscle fiber.

Muscles acquire new ATP by... (3)

___ ___ occurs when muscles use ___ to suppy ATP.

a ___ ___ contracts completely or not at all

The entire muscle shows degrees of ___

a ___ ___ is a contraction that lasts a fraction of a second.

___ is a muscle relaxed even though stimulation continues.

___ ___ is one nerve fiber together with all the muscle fibers.

___ is when the nervous stimulation increases more and more motor units to join in.

___ ___ is when some muscle fibers are always contracted

muscle tone is important for ___

The 3 types of muscle are...

___ ___ is in the walls of hollow organs and blood vessels.

Smooth muscle contracts ___ and are ___fibers.

Smoothe muscles have ___ cells, they are ___ ends.

___ ___ forms the heart wall.

Cardiac muscle fibers are... (4)

___ ___ do not require outside nervous stimulation

Skeletal muscle fibers are... (3)

___ ___ are voluntary.

___ surrounds each muscle fiber (cell)

___ surround bundles of muscle fibers (fasicale)

___ surrounds the entire muscle, becomes part of fascia.

___ ___ extend from epimyslom to form tendons.

Sarcolemma is

Sarcoplasm is

___ ___ are formed by the sarcolemma penetrating into the cell.

___ is increased muscle contraction

___ ___ is maximal sustained contraction

___ is a decrease in muscle size

___ is an increase in muscle size

Slow twitch fibers are Type ___ fibers.  they have many ___.  They are dark in color because they have ___.  They are the ___ in size.

Intermediate-twitch fibers are type ___ fibers. They are ___ then Type I fibers.   They are used for moderate activity like ___, ___, and ___.

Fast-twitch fibers are type ___ fibers.  They are ___, don't need oxygen.  They are designed for ___.  They have little to none ___ and ___.  They can also ___ easily.

___ is attachment of a muscle to the immovable bone

___ is attachment of a muscle to the bone that moves.

___ ___ is a muscle that does most of the work in a movement

___ are muscles that assist the prime mover.

___ are muscles that work opposite one another to bring about movement in opposite directions.

The functions of the nervous system are... (3)

___ goes to the CNS

___ leaves the CNS.

CNS stands for...

PNS stands for...

CNS contains the ___ and ___ ___

PNS contains the ___ and ___ ___

in the ___ the glands and muscles react.

Somatic sensory nerves get signals from... (4)

Visceral sensory nerves get signals from ___ ___

Somatic motor nerves send signals to ___ ___ and are ___.

autonomic motor nerves send signals to ___ ___, ___ ___, ___ and are ___.

___ ___ is "fight or flight"

___ ___ is "rest and digest"

___ ___ contains nucleus and other organelles.

___ receive signals from sensory receptors or other neurons

___ conducts nerve signals away from cell body

___ are bundles of parallel axons in the PNS

___ are bundles of parallel axons in the CNS

myelin in the PNS is formed by ___ ___.

myelin in the CNS are formed by ___.

___ is lipid coating.

Motor neurons are ___ and take nerve info from CNS to ___, ___, and ___.

Sensory neurons are ___ and take info to ___.

Interneurons are ___ and are only in the ___.