Term for something that contains blood vessels that

(a)  

Type of muscle that is striated, involuntary, and contains intercalated discs

(a)  

Type of muscle that has no striations and involuntary control

(a)  

Type of tissue that is specialized to produce movement and highly vascularized.

(a)  

The plasma membrane of a muscle cell (muscle fiber)

(a)  

Myofibrils are composed of the myofilaments

(a)  

Proteins that cause shortening of the cell

(a)  

the functional unit of muscle fibers, is the contractile unit

(a)  

light and dark bands are created by the arrangement of myofilaments (thick - myosin & thin - actin) in sarcomeres

(a)  

Thick myofilament

(a)  

Thin myofilament

(a)  

thin connective tissue covering each muscle fiber

(a)  

coarser fibrous membrane covering bundles of muscle fibers creating a fascicle - bundle of muscle fibers bound together by connective tissue

(a)  

tough fibrous connective tissue surrounding many fascicles creating a skeletal muscle

Outer covering of entire skeletal muscle

Blend into strong, cordlike tendons or into sheetlike aponeurosis

(a)  

A bundle of fibers surrounded by perimysium

(a)  

cord of dense fibrous tissue attaching a muscle to a bone

(a)  

fibrous or membranous sheet connecting a muscle & the part it moves

(a)  

layers of fibrous tissue covering and separating muscles

(a)  

The junction between an axon of a motor neuron and a muscle fiber is called a

(a)  

The motor axons of the neurons branch into

(a)  

a neuron and all of the muscle fibers it stimulates

(a)  

What is between the axon terminal of the neuron and the sarcolemma.

(a)  

Axon terminals contain vesicles which have a neurotransmitter called

(a)  

Put these in order:

A. Voltage-gated Ca2+ channels open and Ca2+ enters the axon terminal moving down its electrochemical gradient.

B. The Action potential arrives at axon terminal of motor neuron.

C. ACh diffuses across the synaptic cleft and binds to its receptors on the sarcolemma.

D. Ca2+ entry causes ACh to be released by exocytosis.

(a)  

muscles that are responsible for producing a particular movement

(a)  

Muscles that oppose or reverse a movement

(a)  

muscles that aid the action of the agonists by reducing undesirable movement.

(a)  

Specialized synergists that immobilize the origin of the prime mover so that all tension is exerted at the insertion.

(a)  

Made up of the sarcoplasmic reticulum, terminal cisternae, and transverse tubules

(a)  

Chemoreceptor responsible for muscle contractions

(a)  

Travel from the brain or spinal cord to trigger the contraction of skeletal muscles.

(a)  

A. Acetylcholine diffuses across a synaptic cleft and binds to acetylcholine receptors which contain ligand-gated cation channels.

B. Socium ions enter the muscle fiber and potassium ions exit the muscle fiber. This causes the membrane potential to become less negative.

C. Action potential travels down the axon of the motor neuron to the axon terminal.

D. Ligand-Gated cation channels open.

E. Calcium entry causes synaptic vesicles to release acetylcholine via exocytosis.

F. Once the membrane potential reaches a threshold value an action potential propagates along the sarcolemma.

G. Voltage-gated calcium channels open and calcium ions diffuse into the terminal.

(a)  

What are these:

Attach Muscle to Bone, Provide Durability and Conserve Space

(a)  

What are the functions of the muscles?

(a)  

Long, rod-shaped organelles that nearly fill the sarcoplasm.

(a)  

Cytoplasm of the muscle cell

(a)  

Myofibrils are made up of even smaller threadlike structures called

(a)  

At each junction of the A and I bands, the sarcolemma indents into the muscle cell, forming a

(a)  

Cross channel of the muscle fiber

(a)  

Elaborate smooth endoplasmic reticulum of the muscle cell

(a)  

Regions where the SR Terminal cisterns border a T tubule on each side are called

(a)  

Each muscle fiber is enclosed in a delicate areolar connective tissue sheath called the

(a)  

Several sheathed muscle fibers are wrapped by a collagenic membrane called the

(a)  

A bundle of muscle fibers are called a

(a)  

Sheetlike matter that attaches muscles to each other or indirectly to bones

(a)  

A muscle more moveable attachment is called its

(a)  

A muscles fixed or immovable attachment is the

(a)  

Tendons perform two very imorant functions

(a)  

Each axon of the motor neuron usually divides into many branches called (a)   as it approaches the muscle.

The neuron and muscle fiber membranes are separated by a small fluid-filled gap called (a)   .

Within the axon terminals are vesicles containing a neurotransmitter called

(a)  

ACh is released by exocytosis when (a)   enters that axon terminal.

Naming Skeletal Muscles: Example of Direction of Muscle Fibers

(a)  

Naming Skeletal Muscles: Example of Muscle Size

(a)  

Naming Skeletal Muscles: Example of Muscle Location

(a)  

Naming Skeletal Muscles: Example of Muscle Origins

(a)  

Naming Skeletal Muscles: Example of Location of the attachments

(a)  

Naming Skeletal Muscles: Example of Muscle Shape

(a)  

Naming Skeletal Muscles: Example of Muscle Action

(a)  

These muscles differ from most skeletal muscles because they insert into the skin or other muscles rather than the bone

(a)