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Muscular System

The muscular system allows humans to move. Muscles also provide strength, balance and heat.

11,239 Questions

What muscle is separating the thoracic cavity from the abdominal cavity?

The thoracic cavity is separated from the abdominal cavity by the diaphragm. This is a broad flat muscle. (muscular) diaphragm
The diaphragm is a muscle that separate the thoracic from the abdominal cavity. The pelvis is the lowest part of the abdominal cavity and it has no physical separation from it Diaphragm

What type of muscle tissue is only found in the organs?

Most of the organs contain smooth muscle. The exception is the heart, which contains cardiac muscle.

What bicep muscles have two origins?

Biceps brachii - in the arm * short head - coracoid process of the scapula (shoulder blade) * long head - supraglenoid tubercle of the humerus Biceps femoris - in the leg (one of the hamstrings) * tuberosity of the ischium (part of the pelvis) * linea aspera of the femur

How does your muscular system help maintain homeostasis?

One function of homeostasis is the blood glucose level control. If your blood glucose level is too high your pancreas releases insulin. Insulin converts glucose into clycogen which is then stored into your MUSCLES and liver.

NB: I am only 15 and obviously not a doctor so its your preference if you believe or trust what I have written.

Why is it important for muscle cells to have large numbers of mitochondria?

Energy is generated in your body in mitochondria. There is the process of biological oxidation taking place. Muscles may need to generate lot of energy. For this the muscle fibers are loaded with numerous mitochondria.

What kind of muscle found inside the alimentary canal?

skeletal - proximal 1/3 of esophagus and anus

smooth - middle/distal 1/3 of esophagus through rectum

How much force is a muscle capable of exerting?

Depends on which muscle it is. but the answer is (Muscle Strength) -apex

Are the muscles in your lungs called smooth muscles?

(This is a rough estimate on the surface area so just consider this answer don't take it for a final.) Roughly around the Trachea, near where it splits to each of the lungs, and then theres the Alveolil (Latin for 'little cavity) because they expand and shrink when you breathe hence why your lungs push your chest forward and straighten your spinal cord.

What does a smooth muscle look like?

idk but i do know that iit looks smooth and wavey and has small holes in it

What is the difference between the origin and the insertion of the muscle?

The origin of a muscle is where the muscle starts ("the starting point").

The insertion of a muscle is where the muscle ends ("the ending point").

Also, the insertion of the muscle is what moves a lot (contrary of the origin where the muscle mostly stays stationary).

Is the bicep an antogonist or agonist?

the antagonsit is the tricep but im not sure what the synergist is sorry

: revised :

the synergist in a biceps curl would be the posterior deltoid as it flexes to stabilize the shoulder, as the secondary role of the biceps brachii in a biceps curl is to pull the elbow forward and upward in an arc towards the shoulder.

if you were looking at the synergists to the biceps brachii as an agonist in its usual role, then the brachioradialis would be the synergist.

What do you use to gain muscle on your body?

To gain muscle on your body you can do many things. Some are weight lifting, push-ups, sit-ups, crunches, planks, and even running on a treadmill. There are many other things that you can do to gain muscle, so you can even make up your own way to gain muscle.

What are the functions of the quadriceps?

The quadriceps femoris muscle group flexes the thigh at the hip, extends the leg (i.e. straightens the knee), and adducts the leg. The quadriceps are located at the anterior thigh. It is a muscle that reacts with hamstrings and gastrocnemius. The four muscles in this group are the rectus femoris, vastus medius, vatus lateralis, and the vastus intermedius.

Muscles used to kiss?

Muscles that are used for kissing are 34 facial muscles, and 112 postural muscles.

The most important one is orbicularis oris muscle, which encircles mouth.

Is your calf muscle a skeletal muscle?

Yes, each and every small muscle in our body even those linking our fingers are part of our muscular system.

We see other muscles in action and we see them grow and hence we think of them alone as part of muscular system. Any small muscle even tiny are part of muscular system.

What is the Smooth muscle tissue function?

innvoluntary muscles found in ur intestines and other internal organs regulating the flow of waste and food products.

Which muscle has the primary responsibility for closing the eye?

The Orbicularis Occuli Muscle controls the movement of your eyelids. It is located in the face and it closes the eyelids. It is the only muscle capable of this.

If the orbicularis occuli muscle loses it's function, then there would be no way

whatsoever to close the eye. In extreme cases, if the muscle does not work, necessitating eye drops at the minimum is used for the removal of the eye in extreme cases.

The palpebral (eyelids) portion acts involuntary in sleep or blinking. It closes the eyelids gently. The orbital (sockets) portion therefore develops conscious control. When the whole of the muscle is in action, the skin of the temple, cheek and forehead is brought toward the medial angle of the orbit and the eyelids are firmly closed. That occurs in photophobia (cannot withstand light/fear of light). Therefore, the skin that is drawn upon is thrown into folds.

Every time the eyelids close because of the orbicularis muscle, the medial palpebral ligament is tightened. Therefore, the wall of the lacrimal sac is drawn lateralward and forward, therefore, a vacuum is made in it and the tears are sucked along the lacrimal canals. The lacrimal draws the eyelids and ends of the lacrimal canals medialward. And that compresses them against the globe of the eye's surface. That is it's favourite position to produce tears.

By Mia Villon.

What is the action of the muscles that causes air to come into the lungs?

The action is the flattening of your diaphragm, or the muscle that helps your lungs inhale and exhale.