Muscular System

That would be bones.

It is very hard, I mean hard there are no soft parts everything is perfect, the physique now that is something these girls are so unique that their body has been through perfection it feels unreal but it is real I love their bodies ...

Quadriceps The quadriceps femoris (quadriceps, quadriceps extensor, or quads) includes the four prevailing muscles on the front of the thigh. It is the great extensor muscle of the knee, forming a large fleshy mass which covers the front and sides of the femur. It is subdivided into separate portions, which have received distinctive names. Rectus femoris occupies the middle of the thigh, covering most of the other three quadriceps muscles. It originates on the ilium. It is named from its straight course. The other three...

With proper Exercise and diet anyone regardless of gender of body type can achieve a six pack all it required is persistence and dedication. ...

No, a structure has to be radio-opaque to show up on an x-ray.

Intercostal muscles are muscle between two ribs in our chest region. The constrict to lift ribs and increase the volume of rib cage. Increasing the volume the low air pressure attract air in lungs. So we respire by relaxing these muscles we expire the air out. ...

The Triceps extend (Stretch out) as the biceps contract.

There is no muscle that is routinely referred to in medicine or anatomy as the PK muscle and without context it is not easy to guess which you might mean. Perhaps you mean the PC muscle? For information about the pubococcygeus muscle (PC muscle) see the related questions section. ...

... Is when you pull the bar/handlebar up, towards your body.

Trapzius, Levator Scapilae, Deltoid, Rhomboids, rotator cuff, Tricep brachii, brachioradialis, latissimus dorsi all located in the upper body. This does not incluse the lower body muscles required to stand, rotate and maintain balance such as the Gluteus maximus, bicep femoris, semitendainosus, semimembranosus, gastrocnemius, soleus, tibialias porterior, peroneus longus, peroneus brevis. Basically the whole muscular network comes in to play when passing a rugby ball. ...

Without the release of acetlycholine muscle could not contract.

Size varies from person to person, but typically its about the size of its owners' clenched fist. ...

Tendons attach muscles to bones. Tendons may also attach muscles to structures such as the eyeball. Tendons are connective tissues that are tough fibrous material rich in collagen. The muscles and tendons help to control joint movement. Muscles have tendinous origins (where they arise) and insertions (where they insert) on bones. Tendons are the part of the muscle that is white and fibrous. Tendons have very little blood supply so when torn it takes some time to heal. In severe tendon injuries...

The heart is a muscle, if you are asking whether having a heart diagnosed as being "enlarged" (or cardiomegaly) is it bad for you, the answer is it could be. That can be a finding from radiology or other imaging that may indicate the heart is building up the size of the muscle by having to beat harder and/or faster to compensate for some other problem that is not allowing proper circulation of blood. You may need further testing to be...

A tendon.

The eyes' muscle group is the orbicularis oculi

yes, you certainly can. characteristics of the 'common muscle cold' are sneezing of the muscles, resulting in mucus excretion, and many larger muscles can cough. ...

The biceps muscle contracts (which is to say, gets shorter) when you bend your arm. It relaxes when you extend your arm. ...

occipitalis

Latissimus Dorsi

it is pushing blood through

Subscapularis, infraspinatus, supraspinatus, teres major and minor, deltoid and trapezium, latissimus dorsi, pectoralis minor, coracobrachialis, biceps and triceps brachii, levator scapulae and the two rhomboideus, serratus anterior. I can't count them, but these are only ones I can remember. ...

Answer: All muscles are not the same width or length so the weight (or mass to be technical) varies with the volume. On average the density of mammalian skeletal muscle tissue (us, beef, or mouse) is about 1.06 g/cm3 . This means that a stack of boneless lean steaks equalling about 1 cubic foot will weigh about 63 pounds. Depends which muscle, what the sex of the person is, etc, etc. approximately 1 pound per inch. Each liter (33 oz/4 cups) of muscle is...

No, the quadriceps fermoris is a skeletal muscle.

Voluntary motions are completely under the control of an organism like walking, jumping etc but Involuntary motions are completed without any conscious recognition and effort of organism like heart beat and reflex actions. Not quite the same as conscious versus unconscious. ...