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Comparison between tract and nerve

  Comparison between tract and nerve Nerve Nerve contain bundle of axons (nerve fibers) in the peripheral nervous system (PNS) that transmits signals between the central nervous system (CNS) and other parts of the body. It is the most important part of peripheral nervous system Location: Peripheral nervous system. Structure: Made of axons, connective tissue layers (endoneurium: axon is surrounded by it , perineurium: bundle of axons are surrounded by it, epineurium: whole nerve trunk is surrounded by it), and blood vessels. It gets myelination by Schwann cell   Function: Carries sensory signals to the CNS (afferent) from peripheral part of body or motor signals carry from from the CNS (efferent) to target organs like skeletal muscle, cardiac muscle, smooth muscle or glands Example: Sciatic nerve, median nerve, except optic nerve (though optic nerve is technically part of CNS in develop...

Difference between arrangement of structures in the root of the right and left lung at the hilum

Difference between arrangement of structures in the root of the right and left lung at the hilum  <script data-ad-client="ca-pub-3738618711723990" async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> Relations Right lung Left lung From before backwards 1.        Upper right pulmonary vein 2.        Pulmonary artery 3.        Epiarterial & hypoarterial bronchus and lower right pulmonary veins 1.        Upper left pulmonary vein 2.        Pulmonary artery , left principal bronchus , lower left pulmonary vein From above downwards Eparterial bronchus Pulmonary artery Hyparterial bronchus Inferior pulmonary vein Pulmonary artery Left principal   bronchus Inferior pulmonary vein

Difference between mode of termination of right and left posterior intercostals veins

Difference between mode of termination of right and left posterior intercostals veins <script data-ad-client="ca-pub-3738618711723990" async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> Right posterior intercostals veins Left posterior intercostals veins 1 st (highest ) right posterior intercostals vein drains into right brachiocephalic vein 1 st (highest ) left posterior intercostals vein drains into right brachiocephalic vein 2 nd ,3 rd , 4 th right   posterior intercostals veins join to form right superior intercostals veins which in turn drains into azygos vein 2 nd ,3 rd , 4 th left   posterior intercostals veins join to form right superior intercostals veins which in turn drains into left brachiocephalic   vein 5 th to 11 th right posterior intercostals veins drain into azygos vein 5 th to 8 th left pos...

Difference between the muscular attachment of sternum on the anterior and posterior surface

Difference between the muscular attachment of sternum on the anterior and posterior surface Parts Muscular attached on the anterior surface of the sternum Muscular attached on the posterior surface of the sternum Upper part of sternum Sterna head of sternocleidomastoid Sternohyoid & sternothyroid Middle part Pectoralis major Sternocostalis Lower part Rectus abdominis Diaphragm (sternal fibres)

Difference between thoracic cage of infant and older age

Difference between thoracic cage of infant and older age  Thoracic cage in infant Thoracic cage in older age Circular in shaped Barrel shaped Ribs horizontally placed More horizontally placed Transverse diameter cannot be increased by thoracic breathing but respiration is purely abdominal Transverse diameter can be increased by thoracic breathing but respiration is thoraco-abdominal Unossified sternebrae are present Lower end curve inward Menubriosternal angulation is less promeinent Menubriosternal angulation is   more promeinent shallow kyphotic curvature present in vertebral column Exaggerated kyphotic curvature

Difference between thoracic cage in adult and in older age

Difference between thoracic cage in adult and in  older age  <script data-ad-client="ca-pub-3738618711723990" async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> Thoracic cage in adult Thoracic cage in older age Kidney shaped Barrel shaped Ribs obliquely placed More horizontally placed Transverse diameter can be increased by thoracic breathing but respiration is thoraco-abdominal Transverse diameter can be increased by thoracic breathing but respiration is thoraco-abdominal No Unossified sternebrae, unit and formed single segment Lower end curve inward Menubriosternal angulation is   promeinent Menubriosternal angulation is   more promeinent Well developed kyphotic curvature present in vertebral column Exaggerated kyphotic curvature

Difference between thoracic cage in adult and in infant

Difference between thoracic cage in adult and in infant Thoracic cage in adult Thoracic cage in infant Kidney shaped Circular in shaped Ribs obliquely placed Ribs horizontally placed Transverse diameter can be increased by thoracic breathing but respiration is thoraco-abdominal Transverse diameter cannot be increased by thoracic breathing but respiration is purely abdominal No Unossified sternebrae, unit and formed single segment Unossified sternebrae are present Menubriosternal angulation is   promeinent Menubriosternal angulation is less promeinent Well developed kyphotic curvature present in vertebral column shallow kyphotic curvature present in vertebral column

Difference between thoracic cage in adult infant & older age

Difference between infant, adult and older thoracic cage The thoracic cage supports breathing and safeguards vital organs. Formation: by the ribs, sternum, and thoracic vertebrae. The thoracic cage has notable age-related alterations from childhood to maturity, which impact respiratory function and total thoracic mobility. It is constantly expanding during childhood. In comparison to adults, the thoracic cage is smaller and more cylindrical throughout infancy and early childhood. This smaller size fits the child's body proportions and provides sufficient protection for the thoracic organs while still making room for the growing respiratory system.   The pediatric thoracic cage's elasticity and flexibility are two of its most noteworthy characteristics. Breathing allows the thoracic cavity to expand because the cartilaginous parts of the sternum and ribs are more flexible and supple. Its adaptability is necessary to allow for the quick development and variations in l...

Difference between children trachea and adult trachea

Difference between children trachea and adult trachea For learning anatomy, please visit : My youtube channel :   @easyhumanatomy73 My website  :  http://easyhumananatomy.com My facebook page :  https://www.facebook.com/easyhumanatomy/ My blog :  http://www.easyhumanatomy73.blogspot.com My blog :  http://www.microscopicanatomybd.blogspot.com Size and Length: Because children's bodies are smaller than those of adults, their tracheas are proportionally shorter and smaller. Adults have a longer, wider trachea, which is indicative of their larger bodies. Adaptability When a youngster is developing, their trachea can expand and move more freely because it is more elastic and flexible. In adults: As the cartilage rings that support the trachea's structure grow more rigid with age, the trachea loses flexibility. Cartilage Make-Up: In children: The tracheal cartilage rings may be more malleable due to their incomplete development. In adulthood, the trachea re...

Difference between relations of right and left suprarenal gland

Difference between relations of right and left suprarenal gland Topics Right suprarenal gland Left suprarenal gland Anterior surface Medial inferior vena cava Lateral right lobe of liver including bare area Superior stomach Inferior splenic artery & pancreas Posterior surface Inferior kidney Superior right crus of diaphragm Medial crus of left diaphragm Lateral kidney Medial border Right celiac ganglion Right inferior phrenic artery   Left   celiac ganglion Left   inferior phrenic artery Left gastric vessels Hilum Near the upper end Near the lower end Peritoneal relations Not related with peritoneal except a tiny area below Related to peritoneum of omental bursa which separates it from stomach