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Muscular System
The muscular system allows humans to move. Muscles also provide strength, balance and heat.
11,239 Questions
What muscles in the foot enables you to stand on your tiptoes?
The muscles in your calves allow you to jump in the air without bending your knees and stand up on your toes. There are two calf muscles that are located in the back of your lower leg. The outer muscle is called the gastrocnemius, and the one closer to the bone is called the soleus.
Are the muscles in the hand voluntary or involuntary?
Voluntary .. you make the choice to for example get a soda can .. blinking, breathing are involuntary you don't have to think about it
How does the cardiovascular system affect the use of muscles?
the cardivascular system provides the oxygento make ATP? The cardiovascular system provides the oxygen to make ATP
What type of muscle is associated with the neck?
Yes. One major group of neck muscles supports and provides movement for the head.
Other groups of muscles in the neck and shoulders allow movement of the arms.
The neck muscles also coordinate with the muscles of the jaw.
What are intercoastal muscles?
The intercostal muscles are the muscles that lie between the ribs and form the chest wall. Their function is to aid inhalation and exhalation.
How many types of muscles are there in humans?
There are three types of muscles:
- Skeletal muscle- Muscle of exterior (ex. triceps, biceps)
- Smooth muscle- Muscle of interior organs (ex. lungs, stomach)
- Cardiac muscle- Muscle of heart (ex. heart)
What muscle contraction is involved in a bicep curl?
i did sports science but cant forget the terms properly..
however there are two parts to bicep curls, the up and down.
durin the uplifting of a weight, the bicep is the main muscle working, whilst the tricep is assisting, this is opposite for downwards phase.
How long does it take to recover from a hamstring tare?
I tore my calf muscle a while ago, it took 4 to 5 weeks to heal and a hamstring is one of the worst things you can tear. i live in Australia and the sport is Aussie Rules Football. and the captain of my favourite team tore his. it took him 16 weeks and he said he came back too early
What are the four types of muscle contractions?
There are three major muscle groups: skeletal, cardiac, and smooth.
skeletal: The skeletal muscles are found all over your skeleton giving you shape and allowing you to move and they are voluntary muscles which means they will only move if you "tell it to"
cardiac: Your cardiac muscle is only found in your heart; no where else and they are involuntary meaning that they move on their own and they never get tired.
smooth: Your smooth muscles are mostly found in your digestive system. They are all involuntary muscles.
What are thick myofilaments of muscles called?
Actin. Myosin are the thin ones.
... it's actually the reverse
The thin filaments are composed primarily by the protein Actin.
The thick filaments are composed primarily of the protein Myosin.
The pectoralis minor and the scalenes, directly raise the uppermost ribs. When these muscles relax, the force of gravity lowers them. The muscle groups used to move the Rib Cage, thus changing thoracic volume, are all in one big group called the Intercostals. There are three layers of intercostals. The External Intercostal raise the ribs up and out to increase thoracic volume. The Internal Intercostals depress the ribs down and in to decrease the thoracic volume. The Innermost Intercostals help the internal intercostals.
The Intercostal muscle
Actually it's the external intercostal muscle found on page 208 of 10th edition Lab Manual by Elaine N. Marieb.
The diaphragm located at the bottom of the lungs cause them to inflate and deflate. When inflated, that lungs which are located beneath the rib cage causes it to rise. When deflated, the lungs let the rib cage lower back to its rest position
What type of muscle is skeleton muscle?
Three types of muscle
You've got around 650 muscles in your body, and they make up roughly half of your bodyweight. These muscles can be divided into three different groups: skeletal, smooth and cardiac. All of these muscles can stretch and contract, but they perform very different functions.
Smooth Muscle
Smooth muscle is found in the walls of hollow organs like your intestines and stomach. They work automatically without you being aware of them. Smooth muscles are involved in many 'housekeeping' functions of the body. The muscular walls of your intestines contract to push food through your body. Muscles in your bladder wall contract to expel urine from your body. Smooth muscles in a woman's uterus (or womb) help to push babies out of the body during childbirth. The pupillary sphincter muscle in your eye is a smooth muscle that shrinks the size of your pupil.
Cardiac Muscle
Your heart is made of cardiac muscle. This type of muscle only exists in your heart. Unlike other types of muscle, cardiac muscle never gets tired. It works automatically and constantly without ever pausing to rest. Cardiac muscle contracts to squeeze blood out of your heart, and relaxes to fill your heart with blood.
Your muscles is around your body to able movements.
Which muscles are under voluntary control?
Any muscle under control of your will and attached to skeleton
Why are muscles important to animals?
Muscle tissue does the same thing as a human's muscle tissue. They use it to move and for other physical activities.
Pennate Muscles
In a pennate muscle, the fascicles form a common angle with the tendon. Because the muscle cells pull at an angle, contracting pennate muscles do not move their tendons as far as parallel muscles do. But a pennate muscle contains more muscle fibers--and, as a result, produces more tension--than does a parallel muscle of the same size. (Tension production is proportional to the number of contracting sarcomeres; the more muscle fibers, the more myofibrils and sarcomeres.)
What is the prime mover of shoulder abduction?
The prime muscle differs depending on the degree of abduction. From 1 to 20 degrees it is the supraspinatus muscle, from 20 to 90 degrees it is the deltoid and from 90 degree and above the action is done by that rotate the scapula (trapezius and serratus anterior).
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What causes muscle fatigue and how do you know if you are expreiencing muscle fatigue?
By a muscle that fails to relax completely resulting in the muscle going into spasm.
What is the difference between a pulled ligament and a pulled muscle?
The difference between a pulled ligament and a pulled muscle is the connection of the tissue to the bone. A ligament is the tissue that connects bone to another bone. Such as a ligament connecting your forearm to your upper arm, in order to help your muscle bring up your forearm. Muscle, on the other hand, is the tissue that contracts and detracts for the reaction of movement in your body. The muscle contains ligament(s) on at least one end of it. When the muscle contracts, what ever bone it is attached to, reacts in movement of a limb. For example, the muscle in your upper arm (called biceps) contracts very often. When it contracts, the force that the muscle is exerting on your forearm becomes energy. Thus, in form of lifting a weight, picking something up, ect. Pulling a muscle/ligament isn't any different, it's just an over-stretching. The association between the two are what really make them diverse.
Which muscle groups are worked when doing pushups?
The push up is actually what is termed a 'total body' exercise. While it is known as an upper body exercise, it works more muscles than just the chest and the arms.
Done from the toes, a push up challenges you to push 60% of your bodyweight, while working your abdominals and your glutes (butt). In fact, the push up is a fantastic abdominal exercise, so make sure it becomes part of your exercise program!
Doing a push up from the knees is simpler and less effective.
