Comparison between tract and nerve

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  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...
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Difference between proliferative and secretory phase of endometrium

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Difference between proliferative and secretory phase of endometrium       


           
Topic
proliferative phase
secretory phase
definition
when estrogen stimulate the growth of endometrium  this phase of menstrual cycle is known as proliferative phase of endometrium
when estrogen and progesterone stimulate the growth of endometrium  this phase of menstrual cycle  known as secretory  phase of endometrium
thickness of endometrium
2-3 mm
5mm
lining epithelium
Simple columnar epithelium 
hypertrophy seen in simple columnar epithelium
uterine gland
elonged and tubular, no secretion                                       no synthesi s and storage of glycogen by glandular epithelium
coiled with secretion within the gland                                    synthesi s and storage of glycogen by glandular epithelium
stroma
highly cellular and nonedematous
highly vascular and edematous
stromal granulocyte
less
more
mitotic figure
more
less
spiral artery
less coiled , not reach the superficial part of endometrium
more coiled , reach superficial part of endometrium
hormone
estrogen
estrogen and progesterone
duration
6th to 13 thin a 28 day cycle
15th to 28th day in a 28 day cycle

                                                                                  

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