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Muscular System
The muscular system allows humans to move. Muscles also provide strength, balance and heat.
11,239 Questions
Difference between agonist and antagonist muscle and 2 examples each?
antagonist goes against the muscle biceps brachii are antagonistic to the triceps brachi quadriceps are antagonistic to the hamstrings an agonist works with the muscle lifting a glass of water brachialis works with the biceps
How does the diaphragm muscle assist with respiration?
- Respiration. The diaphragm is a sheet of muscle separating the chest cavity from the abdominal cavity which, when relaxed, domes upwards; on breathing in the diaphragm contracts & flattens down, thus increasing the capacity of the chest, and causing air to be drawn into the lungs.
- When the diaphragm contracts that causes the volume of the lungs to increase. When the lung volume increases, the air pressure drops causing air to come in from outside (inhaling). When the diaphragm relaxes, the process is reversed. Lung volume decreases, air pressure builds, and air is forced out (exhaling).
Is the ability to move joints and muscles through a full range of motion?
Hyper-flexible joints and their attaching ligaments.
Is a heart beating a voluntary or involuntary action?
It's involuntary, but some do have a limited degree of control.
A myofibril is a bundle of contractile filaments (myofilaments), 1-2 μm in diameter, that are arranged in parallel groups in the cytoplasm of striated muscle cells.
Muscle separating the chest and abdomen?
the diaphragm is the muscle separating the chest and the abdomen
When you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. This increases the space in your chest cavity, into which your lungs expand.
The intercostal muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.
Example of voluntary muscle activity?
Me typing the answer to this question.
You clicking on my 'recommend contributor' button.
Any activity that you can control is voluntary.
Swimming, Running, Mowing the lawn, talking, etc.
What is the collective name for the three muscles that make up the posterior of the thigh?
The three hamstring muscles of the posterior thigh are the semimembranosus, the semitendinosus, and the biceps femoris.
Bones involved when kicking a football?
All of them.
Kicking a football is a very complex act using both legs, the hips, spine, shoulders, both arms and the head. Even the tiny bones in the ear hear the thud as your foot connects and you can immediately tell if it was a sweet kick on the perfect spot or a bad one.
What characteristics of visceral smooth muscle make peristalsis possible?
It is indeed caused by a muscular contraction. Peristalsis is where the food, waste or some other semi-liquid matter is pushed along a muscular tube, with the muscle contracting behind it. Examples include the gullet (oesophagus) and the small intestine.
What is the antagonist muscle in a push up?
in the downward phase (eccentric phase) the biceps, pecs and abs are the agonist muscles and the triceps, lats and spinal erectors are the antagonist. In the upward phase (concentric phase) they are reversed. The triceps, lats and spinal erectors are the agonists and the biceps, pecs & abs are the antagonists.
Your deltoids are your stablisers
How muscles move in lower and upper arm grade 8 explanation please?
you move your arm and creates leverage and it moves. kay nerds you move your arm and creates leverage and it moves. kay nerds
Muscle ache, burning, rapid breathing, nausea, stomach pain is caused by a build up of lactic acid. If you've experienced the unpleasant feeling of lactic acidosis, you likely remember it. It's temporary. It happens when too much acid builds up in your bloodstream. The most common reason it happens is intense exercise.
The symptoms include a burning feeling in your muscles, cramps, nausea , weakness, and the
feeling that you are exhausted. It's your body's way to tell you to stop what you're doing.
The soreness you sometimes feel in your muscles a day or two after an intense workout
isn't from lactic acidosis. It's your muscles recovering from the workout you gave them.
When you exercise, your body uses oxygen to break down glucose for energy.
During intense exercise, there may not be enough oxygen available to complete the process,
so a substance called lactate is made. Your body can convert this lactate to energy without using oxygen.
But this lactate or lactic acid can build up in your bloodstream faster than you can burn it off.
The point when lactic acid starts to build up is called the "lactate threshold."
What are the function of the muscles in the rotator cuff?
The rotator cuff is a collection of muscles that act on the glenohumeral joint (shoulder joint) which are used to rotate the arm. There are four muscles in the rotator cuff called Supraspinatus, Infraspinatus, Teres Minor and Subscapularis.
What muscle is the Achilles tendon attached?
The Achilles tendon is attached to the calf muscle (gastrocnemius). It is also attached to the heel bone (calcaneus). Achilles tendon is also known as the calcaneal tendon (calcaneal hence the heel bone calcaneus).
How big is the cardiac muscle?
Size varies from person to person, but typically its about the size of its owners' clenched fist.
What are muscles are used when you bend your hip?
The mustles are the ones that are in the hip thrust...
What would happen if the heart was a voluntary muscle?
It means you can control how fast and how hard your heart beat.
which means your sympathetic and parasympthatic system isn't going to include heart beat. it could be dangerious when you are in dangour when when you cant have the extra effort to control your heart rate
Group of muscles that extend the leg?
There are four muscles that extend the leg. vastus lateralis, vastus medialis, vastus intermedius and rectus femoris.
This is called an aponeurosis. These are layers of flat broad tendons. They are found in the abdominal region and the palm of the hand and the plantar surface of the foot. One runs from the frontalis muscle to the occipitalis on the top of the head.
