Muscular System

Voluntary means you will do something cooperatively, where involuntary means you are forced to do something against your will.

Blood, cardio vascular, Respiratory, skeletal and your digestive system are all essential counterparts to the muscular system without these other systems the muscular system would not be able to function, its important to remember that the muscular system need oxygen, nutrients, hormones, gases and proteins and calcium to function and build.

The larynx

Surely the fist. Surely the fist.

Mainly the quadriceps of the thighs and the tibialis anterior and peroneus muscles of the lower leg.

You use at least 4 muscles to chew; the one you're probably looking for is the masseter. It's assisted by the temporalis and the medial and lateral pterygoids to complete the grinding. Of course there are other muscles that help too, like your tongue and cheek muscles.

Deltoids specifically---If you keep your palms parallel to the floor, medial deltoid. If you raise the front of your hand higher than the back (thumb facing up-very common) you transfer the tension to the anterior deltoid. trapezius also work into it. Biceps/triceps/forearms are used slightly as ancillary muscles-assumming you are using freeweights.. I am a former personal trainer. any ?'s bnielson_2@yahoo.com

it's important to rest your bicep muscles so they heal quickly and without further complication.

ligaments

poliovirus invades the nerve cells of the spinal cord and kills the motor neurons. When the motor neurons are destroyed, the muscles they connect to become damaged and weaken. The result is varying degrees of paralysis, including difficulty swallowing

Biceps Biceps

satellite cells

The shape of the chief cells of the skeletal muscles is that they are tube-shaped.

Involuntary muscles are those which you don't really have much control over. For example- the most important one: your heart. also, all your smooth muscles, like those lining blood vessels, the digestive track, bladder and passageways to your lungs, are all involuntary.

motor nerves are the one responsible sending messages to the brain..

The tongue and the Penis do not have any insertion points that i am aware of.

A wide variety of muscles are used depending on which type of dancing for example disco dancing may use a lot more arm muscles than ballroom dancing ___________________________________________________________ Depends on what part of your body you are moving.. You could be kruming or belly dancing or ball room dancing.. they all would probably affect you diffrently.

Primarily the superior rectus muscle rotates the eye into upwards gaze.
However, if the eye is turned towards the nose (facing intwards) then the inferior oblique muscle does much of the elevation.

It can be a sign of a congenital disorder, excess anaerobic metabolism (especially after intense work outs) or a sign of tissue hypoperfusion as in hypovolemic shock. It should be investigated by a physician depending on the setting these levels are detected in.

Digesting Food, and if anyone knows more, please tell me for my science homework! thx <3 :)

Digesting food has nothing to do with smooth muscle, it only intervenes in the transportation of food throughout the digestive system (by means of peristaltic movement), actual digestion is made by other types of tissue.

That aside, contraction and dilation of pupils, blood vessels, and airways also involve smooth muscle. There's also the movements of the thoracic diaphragm, which enables respiration. During childbirth, tha pain the woman suffers are because of the strong contractions of the smooth muscle in the uterus that's trying to push the baby to the outside. Let's see... what am I missing... oh yeah, there's also the anal and bladder sphincters' dilation and contraction, they either enable or stop defecation and urination respectively. Swallowing as well, it makes use of pretty much every pharyngeal muscle.

So tl;dr:

1) Breathing

2) Contraction and dilation of blood vessesls, airways and pupils

3) Swallowing

4) Peristaltic movement

5) Childbirth

6) Urination

7) Defecation

8) Vomiting.

I have the feeling I'm missing some stuffs but that's all I can remember at the moment. EDIT: remembered after reading another answer, add Vomiting to the list

When one muscle in a pair contracts the other expands.

Tendons arent made to stretch.Their purpose is to connect the muscle to the bone.If stretched,the tendon might tear.Same goes for ligaments.You stretch your muscles!

During contraction the two articulating bones move equally

The rectus abdominus muscles are media to the obliques. They lie closer to the midline than the obliques, which are lateral.