Muscular System

the bicep like any skeletal muscle are there for motion. they allow the bones to move without these muscles we would not be able to move. the bicep contracts (becomes shorter) and pulls the lower arm up. giving you movement

remember muscles work in pairs so when the bicep contracts the tricep (the opposite muscle) relaxes. they work together to coordinate movement sufficiently

movement of bones--example, when you walk, muscles are pulling your bones so you can take steps.

Mastication is what those muscles can help you do.

There are several types of exercises that can be done to correct inversion. Orthotics are also used to make walking easier and more comfortable.

YES. 100% true true true. The word cardiac means heart . So yes it is true and if your heart wasn't voluntary you would be dead because, if it wasn't voluntary you would have to think about pumping it so you go about every day going thump thump in your head and if you don't for a minute to think about something else you would die and how would you sleep...... You wouldn't. :) so the answer to your question is yes your heart is made of voluntary muscles called cardiac muscle.

i need the same answer...-.-

Dead

Probably most of the lower body and back muscles, such as your gluteus maximus and your quadriceps.

voluntary because you can control writing

The effector muscle is the biceps brachii.

yes it includes cartilage, ligaments, bone, and tendons

Oxygenated blood gets to the hearts muscles through three coronary arteries that are outside the heart. They branch from the aorta just above the left ventricle and conduct blood through smaller arteries and capillaries into the walls of the heart. Veins passing through the heart join to form the coronary sinus, a cavity from which venous blood flows into the right atrium.

http://en.wikipedia.org/wiki/Occipitofrontalis_muscle

No, muscles only do work when contracting. Thus muscles come in opposing sets that pull in opposite directions.

The deltoid group of muscles is the shoulder.

Sometimes people are hungry when they twitch. Other times, they might ve trying to fall asleep. Some people have disorders that make them twitch too

The somatic nervous system consists of peripheral nerve fibers that send sensory information back to the CNS.

The Flexor Hallucis Longus muscle.

It's role is to flex all the joints in the big toe and helps to produce plantar flexion in the foot.

It's proximal attachment is the lower two-thirds of the posterior surface of the fibula.

Sarcoplasmic reticulum (SR) .

it is the most superficial of the brachium muscles

Rectus Abdominis

Muscle fiber generates tension through the action of actin and myosin cross-bridge cycling. While under tension, the muscle may lengthen, shorten or remain the same. Although the term 'contraction' implies shortening, when referring to the muscular system, it means muscle fibers generating tension with the help of motor neurons

Synergy is the term for the ability of muscles to be slightly contracted at all times to be ready to act. Most of the muscles are usually in this form.

No. They are involuntary and involved in the reflex action in response to light intensity (i.e. high light intensity - pupil constricts, low light intensity - pupil dilates) which is an involuntary response to stimuli (hence why it's considered a reflex action).