Muscular System

1) Producing Movement- which is responsible for all movement 2)Genrating heat-which is a by product of muscular activity(60% of all energy is created by muscular activity and is released as heat) 3) Maintaining Posture- almost continuously making tiny adjustments to maintain posture despite gravity 4)Stabilising joins e.g. muscle tendons and stabilising muscles around the joint

They constrict the airway. obviously.

Lymph, also known as lymphatic fluid, moves throughout the body in a series of vessels that have one-way valves. As our muscles contract and relax when we move around, the lymphatic fluid moves very slowly through these vessels.

Sneezing activates the pharyngeal and tracheal muscles involving the face, throat, and chest muscles. The sneeze reflex involves contraction of a number of different muscles and muscle groups throughout the body, typically including the eyelids. You can strain any muscle.

I think you may be talking about origin and insertion points which are the two points of attachment for a muscle. The origin is attached to the immovable (or less movable) bone. The insertion is attached to the movable bone. The insertion always moves towards the origin.

The 'answer' that the 'tongue' is the strongest muscle in the human body is an urban myth. It's actually the 'setup' line to a very old (possibly prehistoric) joke about women being 'stronger' than men, simply because they (are said to) talk more. In actual fact, the strongest muscle(s) are the masseters, the muscles that close the jaw. Largest; gluteus maximus, the muscle upon which we all 'sit' Longest; sartorius, a very long, thin muscle of the leg which extends almost from the waist to the foot. Smallest; stapedius, the muscle that moves the stapes in the inner ear.

none as the joint ca[sule is an inert structure meaning no contractile tissue

The "seated row" works the Latissimus Dorsi, Rhomboids, Biceps. Basically, arms and back.

Breathing is an automatic impulse caused by the Medulla Oblongata.

This will make you breathe automatically.

And obviously your brain would sense danger when you don't have enough oxygen in your blood so your brain would force you to breathe.

Primarily (90% of the time, especially in a resting position) this job is performed by the supraspinatus muscle, and is assisted slightly by the infraspinatus and teres minor. When you are lifting something, or actively using the arm it tends to be the larger deltoids muscle that will kick in and keep the humerus from displacing inferiorly.

FIXATORS are synergists which immobilize the origin of the prime mover so that the prime mover can act more efficiently. For example, the deltoid is the prime mover of arm abduction. The deltoid muscle originates on the scapula, which is a moveable bone. The pectoralis minor, rhomboids, and trapezius muscles attach the scapula to the axial skeleton. When the deltoid contracts to abduct the arm, these other muscles hold the scapula still and therefore act as fixators. http://people.morehead-st.edu/fs/m.mcmurr/231-L11.html this should help you. :) weesa

I don't think so, i had strained a muscle just behind my shoulder blade and it hurt like crazy everyday! It got worse by the minute. i suggest you take some pain medication such as aleve, advil, etc, etc, but i highly suggest ibuprofen because not only does it relax your muscles it also reduces swelling. But going back to the question no, i dont think that you being put in a sling is called for, but if you are still worried i strongly reccomend you to go and see a doctor again.

http://images.google.com/images?sourceid=navclient&rls=GGLD,GGLD:2004-30,GGLD:en&q=muscular+system&um=1&ie=UTF-8&ei=kq3HSdufBpryMqOq4JIK&sa=X&oi=image_result_group&resnum=1&ct=title

The pectoralis major and deltoid muscles are both abductors, therefore they act synergistically to pull the arms inward toward the mid-line (in this case the chest) of the body.

Working out with weights will stress the muscles so that, while you rest, they rebuild bigger and stronger.

Trauma to the Muscle: Activating The Satellite Cells

When muscles undergo intense exercise, as from a resistance training bout, there is trauma to the muscle fibers that is referred to as muscle injury or damage in scientific investigations. This disruption to muscle cell organelles activates satellite cells, which are located on the outside of the muscle fibers between the basal lamina (basement membrane) and the plasma membrane (sarcolemma) of muscles fibers to proliferate to the injury site (Charge and Rudnicki 2004). In essence, a biological effort to repair or replace damaged muscle fibers begins with the satellite cells fusing together and to the muscles fibers, often leading to increases in muscle fiber cross-sectional area or hypertrophy. The satellite cells have only one nucleus and can replicate by dividing. As the satellite cells multiply, some remain as organelles on the muscle fiber where as the majority differentiate (the process cells undergo as they mature into normal cells) and fuse to muscle fibers to form new muscle protein stands (or myofibrils) and/or repair damaged fibers. Thus, the muscle cells' myofibrils will increase in thickness and number. After fusion with the muscle fiber, some satellite cells serve as a source of new nuclei to supplement the growing muscle fiber. With these additional nuclei, the muscle fiber can synthesize more proteins and create more contractile myofilaments, known as actin and myosin, in skeletal muscle cells. It is interesting to note that high numbers of satellite cells are found associated within slow-twitch muscle fibers as compared to fast-twitch muscle fibers within the same muscle, as they are regularly going through cell maintenance repair from daily activities

helps you move.

The fixators prevents any unecessary movement,

Look into biomechanics for more detail. Is all about the way that the muscles moves.

ie BICEP CURL:

Agonist - Prime mover muscle: Biceps

Antagonist - Opposing muscle group: Triceps.

Synergist - Helping muscle group(assists): Brachioradialis.

Fixators - Prevents unecessary movement: Abs and Back and Shoulders and wrists.

The voluntary sector is when people give up their free time to provide a service which does not make any profit

Abductor Pollicis Brevis, Flexor Pollicis Brevis, Opponens Pollicis, Abductor Digiti Minimi, Flexor Digiti Minimi, Opponens Digiti Minimi, Adductor Pollicis, Lumbricals, Palmar Interossei, Dorsal Interossei, Abductor Pollicis Longus, Extensor Pollicis Brevis, Extensor Pollicis Longus, Extensor Indicis, Flexor Digitorum Superficialis, Flexor Digitorum Profundus, Palmaris Longus

The muscles that flex your fingers are located on the anterior side of the forearm and hand. The muscles that extend your fingers are located on the posterior side of the forearm and hand.

deltoid and teres minor

The Biceps flex the elbow

The Triceps extend the elbow

I just had a cortisone shot in my shoulder 2 weeks ago and have been noticing random cramps in legs and feet fairly regularly since then. I've considered the possibility that it could be an effect of reduction in my vigorous exercise (though usually I tend to have occasional leg cramps after I exercise, and then it's mostly when I haven't been going quite as often); I've considered it could be somehow a result of my sloppy diet lately. But really the cortisone injection seems the most reasonable culprit to me. Found this question doing a google search to see if there's any known connection.

You get stronger. The individual muscle fibers become thicker with more myofibrils inside them. The number of muscle cells stays the same, contrary to popular belief that you grow more muscle fibers, this is not true.

The biceps brachii, deltoid (anterior portion), brachioradialis and brachialis are used when you lift a glass to drink from it. The shoulder girdle muscles are also involved, including the trapezeus muscle across the top of your back. Chest muscles (muscles of respiration) are secondarily involved.

Cardiac muscle is also an involuntary muscle. (Do you need to tell your heart to beat?) It is a specialized kind of muscle found only within the heart. This muscle pumps blood through the body. The average person's heart beats more than 4,000 times in an hour (figuring on an average of 70 beats per minute), so, by time you turn 70, your heart will beat some two-and-a-half billion times. Cardiac muscle, like smooth muscle, does not tire.