0
Muscular System
The muscular system allows humans to move. Muscles also provide strength, balance and heat.
11,239 Questions
What term does not belong vastus medialis rectus femoris iliacus or origin on coxal bone?
biceps femoris
What are the agonist and antagonist muscles in the seated row?
The agonists are the muscles that help you to do this exercise. The antagonists are the muscles that bring you back to a regular position instead of being stuck.
What would happen if the human muscular system shut down?
If a person's muscles stop working, that person would be totally immobilized. Yes, falling down would definitely happen; but when you hit the ground, you would not be able to do a darn thing about it.
What happens to the muscles of astronaunts who are in space for an extended period?
they weaken
Because there is no gravity in space muscles go unused. Because of the lack of use they weaken and even begin to deteriorate. Astronauts must exercise for hours daily in order to maintain there strength.
What are the different types of muscle fibers?
There are different types of muscle fibers. There is skeletal muscle, cardiac muscle and smooth muscle. * Skeletal muscle is attached to bones or occasionally skin. * Cardiac muscle is found in the walls of the heart. * Smooth muscle is mostly found in the walls of hollow organs such as the intestines I am currently studying anatomy and physiology at University for my nursing degree.
There are three muscle Types: Skeletal, Smooth and Cardiac.
All muscle cells are elongated and are called muscle fibers. Muscle contraction depends on two kinds of myofilaments (actin and myosin). The cell membrane of a muscle cell is called "sarcolemma", while the cytoplasm of a muscle cell is called "sarcoplasm".
Skeletal muscle characteristics: long, thin and multi-nucleated fiber with striations, voluntary control; arranged into packages called muscles that attach to and cover the bony skeleton; contracts rapidly & vigorously, but tired easily; may exert great force.
Cardiac muscle characteristics: network of branched fibers connected by gap junctions (intercalated disks); only in heart; also have striations; involuntary control; contracts at rhythmic, steady rate set by "pacemaker".
Smooth muscle characteristics: lacks striations; walls of hollow visceral organs and blood vessels; involuntary control, contractions are slow & sustained.
What muscles are activated during normal quiet inspiration?
The Phrenic Nerve-Diaphragm and the External Intercostal Nerve-External intercostal muscles
What happens when lactic acid accumulates in the muscle?
lactic acid, a 3-carbon molecule is formed from pyruvate dueing anaerobic respiration in our muscle cells. muscle cells undergo anaerobic respiration when there is a deficiency of oxygen in the body this happens when we exercise. During strenuous exercises our body requires instant energy and since anaerobic respiration is a 2 step process it gives eenergy faster. thus, muscle cells break down lucose o produce lactic acid and energy. as a result a lot of lactic acid is accumulated in our muscles and this causes muscle cramps.
Are the kidneys smooth muscles?
No it is not. The liver is a specialized organ involved in protein production, hormone production, detoxification, metabolization of compounds, glycogen storage and digestion. Smooth muscle, on the other hand, makes up a significant portion of the gastrointestinal track. It is interesting to note that a marker for autoimmune hepatitis (a disease of the liver) is called anti-smooth muscle antibody.
What is the function of the deltoids?
the deltoid has 3 division of fiber, each has its function depending on their location
the anterior fiber serves as shoulder flexor, where is the middle fiber for shoulder abduction at frontal plane and the posterior fiber functions as shoulder extensor
What are the muscles that contribute to the rotator cuff?
1- Supraspinatus and its function is to abduct the arm ,and it's innervated by the Suprascapular nerve.
2- Infraspinatus muscle and its function is to externally rotate the arm ,and it's innervated by the Suprascapular nerve.
3- Teres minor muscle and its function is to externally rotate the arm ,and it's innervated by the Axillary nerve.
4- Subscapularis muscle and its function is to internally rotate the humerus ,and it's innervated by the Upper and Lower subscapular nerve.
Do afferent nerves carry impulses from the muscle to the brain?
Taking drugs as a Muscle relaxer could be harmful for the internal system .The whole world is turning towards Natural therapies and Natural Healing herbs.There are many Natural Herbs which have healing properties.These can be found on sites tht provide information on Natural Muscle relaxing Herbs.
Muscle hypertrophy is another way of saying and 'over-growth' of muscle tissue. Someone who works out with weights can become hypertrophic.
Which muscle or muscles are the most important muscles used in inspiration and inhalation?
the diaphragm is the muscle(s) that are most important muscle used in inspiration (inhalation)?
Do genetics play a large role in potential muscular development?
Every human being does have a slightly different genetic potential regarding building up of muscle fibres. You can compare 2 people (not essentially bodybuilders!), let them train, rest, eat etc. exactly the same, but one will get stronger and the other one not. This is due to the genes and body composition.
Is the origin of a muscle usually proximal?
1. Nearest; proximate.
2. Anatomy Nearer to a point of reference such as an origin, a point of attachment, or the midline of the what ever you are trying to locate.
So if you you where to look for the orgin of Rectus Femoris then yes it would be proximal to the knee.
