Emily

Straited branched fibers that r involuntarily controlled and are located in the heart wall.

Nonstraited ,spindle shaped fibers that r involuntarily controlled. located within blood vessels, uterus, and lines digestive tract.

Straited long fibers that are voluntarily controlled . Located attacted to the bones.Only type of muscle tissue that is considered part of the muscular system.

The ability to recieve and respond to stimulus.

ability to shorten when stimulated .(contract)

The ability to be streched or extended.

ability to recoil after being streched.

Production of movement , Maintenance of posture and body position , Stabilizing joints, Generation of heat.

Each muscle is supplied by one nerve, one artery, and one or more veins . Skeletalmuscles have a very rich blood supply because they are so active , so they need a constant supply of energy and oxygen.

sheaths of connective tissue that support muscle fibers and reinforce muscles during powerful contractions.

Dense irregular connective tissue that surrounds the entire muscle.

fibrous connective tissue that surrounds a group of muscle tissue called fascicles.

thin layer of areolar connective tissue that surrounds individual muscle fibers.

movable bone to which a muscle is attached.

less movable bone to which a muscle is attached.

epimysium of the muscle directly attached to the bone.

epimysium is attached to a tendon or aponeurosis which is then attached to a bone.

cord of fibrous tissue.

sheat of fibrous tissue.

cytoplasm inside a muscle fiber.(jelly like)

carbohydrate, large molecule made up of many glucose molecules used to store energy

red pigment that stores oxygen

thin threads that extend the length of a muscle fiber.

fluid filled sacs that surround each myofibril . Store n release calcium.

are directly involved in the contraction process and are arranged in sacromeres.

basic unit of a myofibril

lines that mark the ends of each sacromere

thin filament of contractile protein which is attached to the Z disc.

thick filament of contractile protein that is directly attached to the z disc.

where the actin and myosin overlap and the area in between

at each end of the A band just where u have to overlap.

where there is only actin

where you just have myosin.

A line that goes right down the centerof the sacromere formed by proteins.

each myosin is made up of a tail n two heads which stick out and r capable of movin

composed of a string of actin molecules twisted into a helix.Each actin molecule contains a myosin bindin site where a myosin head can attach.

proteins that help switch the contraction process on and off.

brown protein that covers the myosin bindin sites on actin when a muscle is relaxed.

yellow proteins that hold the tropomyosin in place

where a nerve impulse from a motor neuron is transmitted to a muscle fiber. region of contact between motor neuron and muscle fiber.

Axon terminal and synaptic end bulb

synaptic vescicles filled with acetylcholine (ach)

space between the synapic end bulb and the muscle fiber.

region on the muscle fiber thats directly opposite from the synaptic end bulb

high energy molecule that is stored in muscles. creatine phosphate +ADP>creatine +ATP.provides energy for about 15 seconds of activity ex. running a 100 meter dash.

series of reactions that do not require oxygen .begins to break down glucose molecules. Used after creatine phosphate is used up, provides energy for about 30-40 seconds of activity . ex-runnin a 400 meter dash.