Muscular System

I am 12 years old too. I am trying to get huge biceps also. My biceps are big, but I want them huge. If you want big muscles try doing dumbbell curls each hand 2x, decline hammer curls each hand 1x, and barbell curl 1x. If it gets too easy do two sets of hammer curls for each hand.

superficial transverse perineal muscle

A supinator is a synergist for supinating the hand. Brachialis is the forearm flexor which has no role in supination.

There are around 25 muscles that are used in writing.

Intrinsic hand muscles act only the digits:

THENAR MUSCLES and ADDUCTOR POLLICIS

HYPOTHENAR MUSCLES

LUMBRICALES

DORSAL INTEROSSEI

PALMAR INTEROSSEI

Extrinsic thumb muscles that act on the thumb:

FLEXOR POLLICIS LONGUS

EXTENSOR POLLICIS LONGUS

EXTENSOR POLLICIS BREVIS

ABDUCTOR POLLICIS LONGUS

Extrinsic hand muscles act on the wrist and the digits:

EXTENSOR DIGITORUM

EXTENSOR INDICIS (PROPRIUS)

EXTENSOR DIGITI MINIMI (PROPRIUS)

FLEXOR DIGITORUM SUPERFICIALIS

FLEXOR DIGITORUM PROFUNDUS

Carpal muscles act at the wrist and, in some cases, the elbow:

EXTENSOR CARPI RADIALIS LONGUS

EXTENSOR CARPI RADIALIS BREVIS

EXTENSOR CARPI ULNARIS

FLEXOR CARPI RADIALIS

FLEXOR CARPI ULNARIS

PALMARIS LONGUS

Contraction of the erector spinae muscles can produce either unilateral flexion of the spine, or when they are used bilaterally they produce extension of the spine, which is more properly called the vertebral column.

In my perspective, I think that the heart is made up of cardiac muscle to retain enough strength and stability to pump blood through the heart valves to keep us alive. Because without the the heart's strength, our heart would be too weak to pump blood for systemic and pulmonary circulation throughout our body.

The stomach includes many organs and bones that need protection. So, to protect it, we need very strong muscles. If we do not have strong muscles, our organs will not be well protected although we got our rib bones ,If we so not drink enough milk, and if someone punch us, so say goodbye to our organs...

When flexing your arm you would use shoulder muscles, mainly the deltoids and pectoralis major. If you flex your elbow (which most people think means flexing your arm, but is really the forearm), then you would use your biceps, brachialis. and brachioradialis muscles, which would be three muscles, depending on the orientation of the forearm.

A tendon (or sinew) is a tough band of fibrous connective tissue that usually connects muscle to bone. A tendon is capable of withstanding tension. Tendons are similar to ligaments and fascia as they are both made of collagen, except that ligaments join one bone to another bone, and fascia connect muscles to other muscles. Tendons and muscles work together and can only exert a pulling force. At each end of a muscle, the collagen fibers come together to form a bundle of fibers called a tendon that attaches them to bones. If it forms a broad tendinous sheet it is called an aponeurosis.

Muscles are specialized tissues evolved for movement. Smooth muscle is involved in involuntary movement found in the contraction of blood vessels, the digestive tract and the iris, and also the formation of goose bumps. Skeletal muscle is a type of striated muscle involved in voluntary movement and is the muscle we are most familiar with that allows us to move our bodies. Cardiac muscle is also a type of striated muscle, although some people use it to mean skeletal muscle only, and is involved in the contraction of the heart which is the pumping motion that moves the blood throughout the body.

there are upto four functional groups of muscles acting on joints. 1 agonist: actively contract to make a movement. muscle length reduces. 2. antagonist: resists the muscle on opposite side, thereby controls the speed of the agonist muscle contraction. that's why they say both agonist and antagonist muscles are working in pairs. furthermore when the movement is reversed the original agonist becomes the antagonist and the original antogonist becomes the agonist. hence antagonist pairs. right? 3. stabilisers: some muscles will hold the joint area stable while other three types of muscles are making a movement. 4. modifiers: some muscles can slightly change the direction of force exerted by agonists dynamically.

Glucose can't be converted to proteins by addition of chemicals . But during metbolic reaction products formed from glucose are used to make amino acids by addition of amino group which form proteins .

The "movable" end of a muscle is called the insertion. The "immobile" end is called the origin. Shortening, or contraction, of a muscle causes the origin and insertion to become closer to one another.

this is were you volunteer to do something without asking anything in return, offering to help care for someone and not get paid.

Muscles bend and flex by moving the arm to pick up an object or even weightlifting.

you know lil Wayne

your toe strength is from the tendons in your foot

Ligamentum patellae

Muscle fatigue can be overcome in various ways. The best way is through massage therapy which will relax the muscle and ensure that there is sufficient blood supply to the muscle.

an engine

acetylcholine is broken down by enzyme acetylcholesterase, when it's supply is no longer renewed, a calcium pump removes calcium ions from the muscle fiber and returns them to the cisternae of the sarcoplasmic reticulum. Tropomyosin then blocks the linkage site and actin slides back to it's resting place.

The esophagus contains varying amounts of striated muscle.

I-Band

Almost all cells of the human body have organelles, including muscle cells. A lot of energy, in the form of ATP, is required to make movement occur in the muscles and this can only be produced from the complete oxidation of carbohydrates to CO2 and Water. To completely oxidise carbohydrates an organelle called Mitochondria is requires and so muscle cells hace many many of these.