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Muscular System

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

11,239 Questions

Explain the effects of strenuous muscular activity on breathing rate?

Strenuous muscular activity is basically a fancy way to say exercise. As muscles are worked harder, they demand more oxygen, so your breathing rate increases with strenuous muscular activity.

What term defines the greatest force that can be produced by a muscle or a muscle group?

The term that defines the greatest force that can be produced by a muscle or a muscle group is "maximum strength." This refers to the maximal amount of force exerted by a muscle during a single contraction, often measured in strength training contexts. Maximum strength is a key component of physical performance and can vary based on factors such as muscle size, neural activation, and training.

What do blood cells bring to the muscle?

Red Blood cells bring oxygen and nutrients to the cells of the muscles.

Where is skeletal muscle tissue found?

Cardiac muscle tissue forms the bulk of the wall of the heart.

Smooth muscle tissue is located in the walls of hollow internal structures such as blood vessels, the stomach, intestines, and urinary bladder.

Skeletal muscle tissue is named for its location - attached to bones. Skeletal muscles are found attached to the bones, which enables their movemen.t

The rotator cuff of the shoulder is composed mainly of what?

There are four tendons in the rotator cuff, and these tendons are attached individually to the following muscles: teres minor, subscapularis, infraspinatus, and the supraspinatus.

What is one reason muscle tissues are likely to be affected by mitochondrial diseases?

Muscle tissues are particularly affected by mitochondrial diseases because they have a high demand for energy due to their continuous contractions and physical activity. Mitochondria are responsible for producing ATP, the energy currency of the cell, and when they are dysfunctional, as seen in mitochondrial diseases, the energy supply to muscle cells is compromised. This can lead to muscle weakness, fatigue, and exercise intolerance, making muscle tissues especially vulnerable to the effects of these diseases.

Skeletal muscle and smooth muscle?

There are three types of muscle tissue: skeletal, smooth, and cardiac.

Skeletal muscle tissue is a voluntary type of muscle tissue that is used in the contraction of skeletal parts. It is striated (alternating with light and dark bands, called striations) and is attached to bones. A single skeletal muscle fiber is very long and has many nuclei, located at the periphery of the cell. Individual muscle fibers are parallel to each other.

Smooth muscle tissue is found in the walls of hollow internal organs and blood vessels. It is involuntary, nonstriated, and it's muscle fibers are small, thickest in the middle, and tapered at each end, containing single, centrally located nuclei. Smooth muscle tissue helps to narrow the lumen of blood vessels, physically break down and move food along the GIT as well as move fluids through the body and eliminate wastes.

Cardiac muscle tissue is found only in the walls of the heart and it is striated but also involuntary. It's muscle fibers are branched, and usually have only one centrally located nucleus. cardiac muscle tissue has intercalated discs that transverse thickening of the plasma membrane attached to the muscle fibers from end-to-end. It contains cell junctions that strengthen cardiac muscle and holds the fibers together during its vigorous contractions and cell junctions known as gap junctions that also provide a quick route for conduction of electrical impulses.

What Causes muscle cramps when stretching?

Dehydration - make sure you're fully hydrated before working out or exercising and continue to replenish by drinking water during the exercise.

Can neurotransmitters cross the synaptic cleft?

Yes, neurotransmitters diffuse across the synaptic cleft to transmit a neural signal; the actual neural impulse(spike) occurs when the neuron fires in response to a sufficiency of signals received.

What muscle allows you to straighten the hip joint?

Straightening the hip joint is referred to as extending the hip joint (iliofemoral joint). There are several muscles that do this, mainly the gluteus maxiumus.

What kind of muscle lines hollow organs?

smooth muscle
single unit smooth muscle
smooth muscle
Unitary smooth muscle
no u
Just smooth muscle.

Ribs are bones.
Smooth muscle tissue.
Involuntary muscles make up the walls of blood vessels and hollow organs.
Smooth
smooth muscle
Smooth muscle tissue are small spindle-shaped cells that are commonly found in the walls of hollow organs.

What are different types of contraction in sport?

The different types of contraction in sport is;

Concentric

Eccentric

you also have to include;

joint action e.g. Extension / flexion

the agonist / agonistic muscle pairs e.g. hamstrings, quadriceps, biceps, triceps ect.

& the joint itself e.g. knee, elbow, shoulder,

What is the term for the muscle that bends and flexes the elbow joint?

Flexion (same as bending) at the elbow joint (between the humerus and the radius and ulna) is mainly achieved by the Brachialis Muscle. This is not the answer most would expect as everyone knows the Biceps Brachii (Biceps of the arm) are what flexes this joint. In fact the biceps does both supination and flexion of the elbow because its insertion is on the radius. Only when the forearm is supinated, the biceps is able to assist the deeper and more powerful brachialis muscle with the flexion of the elbow.

What are the three type of tissues of the muscular system?

there are actually four the Epithelial tissue includes glands and tissues that cover interior and exterior body surfaces. Connective tissue provides support for the body and connects its parts.Nervous tissue transmits nerve impulses throughout the body.And muscle tissue,along with bones,enables the body to move

What type of muscle is the heart made off?

the heart is made out of a special type of muscle called cardiac muscle

How does the muscular system coordinate with with other systems?

a description of how the muscular system work with other body systems

What are striated muscle spasms?

A muscle spasm is a sudden, spontaneous, uncontrollable and abnormal tightening or contraction of a muscle. The term muscle cramp is also used to describe a muscle spasm anywhere in the body, and when a muscle spasm occurs in the lower leg it is often called a "charlie horse."

Spasms of the muscles will often be triggered after a sudden movement in a muscle that has not been used for a while, even if the movement is not forceful. Examples of this are muscle cramps that happen while asleep or after prolonged sitting. This is why athletes do warm up exercises before activity to prevent muscle spasm.

Muscle spasms are not uncommon, and can become more frequent and intense with age, when fatigued as from overwork, or when the mineral levels of the body are lower than normal for normal muscle function. This is why athletes and those who work in high temperatures take salt tablets or drink fluids to replace the minerals that are lost from excess sweating.

What is the name given to a muscles that work in a pair?

Antigonistic Pairs-

The meaning of an antagonistic pair is only one muscle can work at a time.

For Example: Biceps and Triceps (in your arm)

The muscle contraction used in kicking a ball?

the muscle contraction used in kicking a ball all comes from your mind. If you can focus and imagine yourself kicking a ball you will be able to do it. Once you have completed this you can then use this skill to do many other things like running up walls and jumping off really high biuldings. If you can kick a ball then i deeply recommend you try jumping of really high biulding.