Term
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Definition
| group of tissues in the body that maintains the form of the body and its organs and provides cohesion and internal support |
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Term
| Functions of Nerve Tissue |
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Definition
•Nervous tissue allows an organism to sense stimuli in both the internal and external environment.
•The stimuli are analysed and integrated to provide appropriate, co-ordinated responses in various organs.
•The afferent or sensory neurons conduct nerve impulses from the sense organs and receptors to the central nervous system.
•Internuncial or connector neurons supply the connection between the afferent and efferent neurons as well as different parts of the central nervous system.
•Efferent or somatic motor neurons transmit the impulse from the central nervous system to a muscle (the effector organ) which then react to the initial stimulus |
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Term
| blood made up of extracelluar matrix(ECM) |
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Definition
| The matrix is made up of 55%plasma,44%red blood cell and 1% white blood |
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Term
| White blood cells(Luekocytes) |
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Definition
| found in the imune system help combat foreign bodies and viruses in the body |
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Term
| Red blood cells (erythrocytes) |
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Definition
transport O2 around the body
take CO2 to lungs to exhale
bind to Hemoglobin (is used to transport oxygen in the blood in red blood cells to tissue cells where it is used directly) |
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Term
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Definition
maintain and stable the environment.
Change in stimulus, receptor(sensor)sends message to contorl centre(brain) which sends message to Effector to cause a response to the stimulus. |
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Term
| Blood(erythrocytes) shape |
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Definition
| shape is biconcave disc which increase Surface area= increase spaece for O2 intake. |
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Term
Ethrocye(red blood cell) production
1st imblance of normal blood O2 level |
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Definition
| O2 demand high -receptors send messafe to kidney (secrete hormone-erythropetin) to bone marrow a site where red blood cells are made. |
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Term
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Definition
1.muscle contraction
2.smooth muscel
3.Sketal muscel
4.Cardiac muscel |
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Term
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Definition
| is used to generate force and movement. Allows sketal movement (walking) and contribute to movement of internal organs. |
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Term
| muscle contraction possible |
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Definition
due to two main proteins; actin and myosinm -both which are cytoskeleton.
Also require ions and energy(provided by mitochondria) |
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Term
| muscle cells are also called |
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Definition
| Muscel fibres. Muscle tissue also have little extracelluar matrix(ECM). |
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Term
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Definition
is called smooth due to apparence under microscope.
Associated with all internal organs(other than heart) that require some kind of movement. |
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Term
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Definition
| enlongated cells, actin and myosin are found forming a mesh thats joined to special spots on inner surface of cell membranece called DENSE BODIES. |
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Term
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Definition
controlled by nervous system
involuentry
slow contraction
one nucleus per cell
found in digestive system
smooth around lumen
either will contract or not |
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Term
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Definition
found in heart no where else!
involuentry
fast for blood
Striated (repeated unit)
Cells branched attached = stronger connection |
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Term
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Definition
| which is attached to bones by tendons, is associated with the body's voluntary movements. is striated muscle. Unlike cardiac muscle, the cells are not branched. |
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Term
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Definition
| is so named because it is found in the heart. Cells are joined to one another by intercalated discs which allow the synchronization of the heart beat. Also is branched, striated muscle. |
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Term
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Definition
is found in various parts of the body such as the arteries, the bladder, the digestive tract, as well as in many other organs.
is also called smooth muscle because it doesn't have cross striations. Visceral muscle contracts slower than skeletal muscle, but the contraction can be sustained over a longer period of time. |
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Term
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Definition
found in biceps
Voluntry
developed by the fusion of muscels cells by the myoblast |
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