Actin
... contraction of the cell during cytokinesis . In
muscle cells they play an essential role, along with myosin , in
muscle contraction . In the cytosol , actin is ...
Muscular Contraction
Main article:
muscle contraction
Together with myosin filaments ...
Biomechanics
... of the bones
5 Biomechanics of the
muscle
6 Viscoelasticity
7 Nonlinear Theories ... ε k l
Biomechanics of the
muscle
There are three main types of muscles:
Skeletal
muscle (striated) Unlike cardiac muscle, ...
Brain
... , the brain has several parallel systems of
muscle control. The motor system controls voluntary
muscle movement, aided by feedback loops in the ... Nuclei in the brainstem control many involuntary
muscle functions such as heartrate and breathing.
...
Diabetes mellitus
... uptake of glucose into cells (primarily
muscle and fat cells) from the blood, deficiency of ... unit) to glycogen for storage in liver and
muscle cells. Lowered insulin levels result in the ... levels fall -- though only in the liver not
muscle tissue. Higher insulin level increase many ...
Insulin
... lack of insulin inhibits absorption
arterial
muscle tone – forces arterial wall
muscle to relax, increasing blood flow, especially in ... the stimulation of glucose uptake is concerned:
muscle cells ( myocytes ) and fat cells ( adipocytes ). ...
Actin
... contraction of the cell during cytokinesis . In
muscle cells they play an essential role, along with myosin , in
muscle contraction . In the cytosol , actin is ...
Muscular Contraction
Main article:
muscle contraction
Together with myosin filaments ...
Muscle
...
muscle is a contractile form of tissue . It is one ... , connective tissue and nervous tissue .
muscle contraction is used to move parts of the body , ...
5.2 Disease
6 The strongest human
muscle
7 External links
8 See also
...
Myosin
... Myosin is a motor protein filament found in
muscle tissue . Together with actin filaments, myosin provides the mechanism for
muscle contraction , utilizing energy from ATP . The ... transduction process are still not known.
The
muscle is composed of ...
Protein
... having molecular masses of up to 3,000,000 (the
muscle protein titin has a single amino acid chain ... that should be black becomes reddish), loss of
muscle mass (proteins repair
muscle tissue), low body temperature, and hormonal ...
Signal transduction
... reticulum ( sarcoplasmic reticulum in
muscle cells), where it is bound to molecules like ... . It is especially important in neurons and
muscle cells . In heart and pancreas cells, another ... is used in a multitude of processes, among them
muscle contraction, release of neurotransmitter from ...
Stem cell
... injection restores ability to walk
3.2.3
muscle damage
3.2.4 Human hearts repaired using ... to be able to transform into liver , nerve ,
muscle , hair follicle and kidney cells.
Adult stem ... many types of tissue, including neurons , smooth
muscle cells and fat-cells. These were found in the ...
Anabolism
... processes include growth and mineralization of bone and increase of
muscle mass.
Catabolic processes involve "breaking down" organs and tissues. ... stress and illness. Examples of catabolic processes include breakdown of
muscle protein in order to use amino acids as substrates for gluconeogenesis ...
Biological tissue
... holds everything together. Blood is considered a connective tissue.
muscle tissue -
muscle cells contain contractile filaments that move past each other and change ...
Anabolism
... processes include growth and mineralization of bone and increase of
muscle mass.
Catabolic processes involve "breaking down" organs and tissues. ... stress and illness. Examples of catabolic processes include breakdown of
muscle protein in order to use amino acids as substrates for gluconeogenesis ...
Cell growth
... to form syncytia . For example, very long (several inches) skeletal
muscle cells are formed by fusion of thousands of myocytes . Genetic studies of ... several genes that are required for the formation of multinucleated
muscle cells by fusion of myocyes. Some of the key proteins are important for ...
Eye
... substance called the vitreous humour , with a focusing lens and often a
muscle called the iris that controls how much light enters. Although they are ...
Anterior chamber
Blind spot
Canal of Schlemm
Ciliary
muscle (or body)
Cornea
Conjunctiva
Choroid
Fovea
Iris
...
Skin
... of structures including blood vessels, nerves, hair follicles, smooth
muscle , glands and lymphatic tissue . It is made up of dense connective ... the dermis. Its purpose is to attach the skin to underlying bone and
muscle as well as supplying it with blood vessels and nerves. It is made up of ...
Thermoregulation
... metabolism ( catabolism ) is going on, heat is being set free. When a
muscle does work it also gives rise to heat, and if this is estimated it can be ... survive a temperature of 45 C (113 F) or above for very long. Mammalian
muscle becomes rigid with heat rigor at about 50 C., and obviously should this ...
Albinism
... vision often improves towards middle age , when most "normally" sighted individuals begin to suffer long- or short-sightedness, due to changes in
muscle tension.
Individuals with these conditions may be helped by the use of glasses and low-visual aids such as magnifiers, as well as bright but angled ...
Anton van Leeuwenhoek
... and his contributions towards the establishment of cell biology . Using his handcrafted microscope he was the first to observe and describe
muscle fibres, bacteria , spermatozoa and blood flow in capillaries (small blood vessels ).
His name at birth was Thonis Philipszoon . His ...
Avian influenza
...
Symptoms
In humans, it has been found that avian flu causes similar symptoms to other types of flu:
fever
cough
sore throat
muscle aches
conjunctivitis
in severe cases of avian flu, it can cause severe breathing problems and pneumonia , and can be fatal.
Taken from: ...
Barbiturate
...
Other non-therapeutical use
Barbiturates in high doses are used for physician-assisted suicide (PAS), and, in combination with a
muscle relaxant , for euthanasia and for capital punishment by lethal injection .
References
Text partially derived from public domain text ...
Bone
... under stress.
Bones can be connected to muscles via tendons and other bones by ligaments .
The science of the interaction of bone and
muscle is called biomechanics . The science of bones is called osteology .
Some illnesses afflict human bones, for example osteoporosis and cancer . ...
Biophysics
...
animal locomotion
cellular biophysics
channels , receptors and transporters
electrophysiology
membranes
bioenergetics
muscle and contractility
nucleic acids
photobiophysics and biophotonics
proteins
supramolecular assemblies
spectroscopy , imaging ...
Cancer
... is a cancer originating in lymphatic tissue . Melanoma arises in melanocytes . Sarcoma begins in the connective tissue of bone or
muscle . Teratoma begins within germ cells .
Adult cancers
Adult cancers is usually formed in epithelial tissues and are believed often to be the ...
Chromosome
... retardation and mental defect.
Down syndrome (extra chromosome 21). This is also known as mongolism or trisomy 21 . Symptoms are decreased
muscle tone, asymmetrical skull, slanting eyes and mental retardation.
Edward's syndrome is the second most common trisomy after Down's Syndrome. It is ...
Depolarization
... channels are closed. Compare to hyperpolarization . Depolarization of membrane potentials is important for other cell types, particularly
muscle cells.
Related topics
membrane potential
action potential
...
Endoplasmic reticulum
... Disulfide bonds stabilize the tertiary and quaternary structure of many proteins.
Sarcoplasmic reticulum. The endoplasmic reticulum found in
muscle fibers is called sarcoplasmic reticulum .
...
Warm-blooded
... , lick, or seek shelter or water.
Diverse mechanisms can come into play to regulate body temperature, such as shivering (to generate heat from
muscle contractions), blanching (circulatory changes to direct less heat to the skin), flushing (circulatory changes to radiate more heat from the skin), ...
Enzyme
... literally starve for oxygen even with an abundance of oxygen without the action of the enzyme, cytochrome oxidase. Enzymes are also necessary for
muscle contraction and relaxation. The fact is, without both of these classes of enzymes, (digestive and metabolic) life could not exist.
Enzyme ...
Gene therapy
... the virus and the cells that have been successfully treated with it. Several trials with AAV are on-going or in preparation, mainly trying to treat
muscle and eye diseases, the two tissues where the virus seems particularly useful.
Problems and ethics
For the safety of gene therapy, the ...
Glucose
... as D -glyceraldehyde.
Synthesis
The product of photosynthesis in plants and some prokaryotes .
Formed in the liver and skeletal
muscle by the breakdown of glycogen stores (glucose polymers ).
Synthesized in liver and kidneys from intermediates by a process known as ...
Glycolysis
... more closely connected to aerobic metabolism occur). Glucose gets into the cell through facilitated diffusion . In some tissues, skeletal
muscle for instance, insulin stimulates this process.
Follow up
The ultimate fate of the pyruvate and NADH produced in glycolysis depends upon ...
Intermediate filament
... these heterodimers can then associate to make a keratin filament.
Type III IFs
Desmin IFs are structural components of the sarcomeres in
muscle cells.
Vimentin IFs can be found in fibroblasts and endothelial cells , they support the cell membrane and keep some organelles in a fixed ...
Lung
... surface area of the lung itself. The lungs of humans are typical of this type of lung.
Breathing is largely driven by the diaphragm below, a
muscle that by contracting expands the cavity in which the lung is enclosed. The rib cage itself is also able to expand and contract to some degree.
As a ...
Memory
...
Long-term potentiation
Hebbian learning
The Memory-Prediction Framework- An Acclaimed Unifying Theory of Memory
Mnemonic
muscle memory or proprioception : the sense and memory of where parts of our body are in space
External links
Memory Exercises , a memory wiki ...
Nutrition
... for the organism’s normal functioning.
These are:
Adequate energy levels
Maintaining proper body structures and processes, e.g.
muscle function, immune protection, bone density and strength
Repair and development of all of the organism’s systems.
In the case of humans, ...
Patau syndrome
... associated with severe mental retardation , small eyes that may exhibit a split in the iris ( coloboma ), a cleft lip and/or palate , weak
muscle tone (hypotonia), an increased risk of heart defects, skeletal abnormalities, and other medical problems. Affected individuals rarely live past ...
Prion
... been speculatively linked to memory [2] and cellular differentiation , the process by which stem cells take on specialized functions (such as
muscle or blood cells).
Yeast Prions
In 1965 , Brian Cox, a geneticist working with the yeast Saccharomyces cerevisiae , described a genetic ...
Endoplasmic reticulum
... Disulfide bonds stabilize the tertiary and quaternary structure of many proteins.
Sarcoplasmic reticulum. The endoplasmic reticulum found in
muscle fibers is called sarcoplasmic reticulum .
...