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Readme [11.4K]
4 years ago
13

Why do you think neutrophils are not present in the tissues during homeostasis even though they constitutively express the selec

tins and integrins necessary to enter tissues?
Biology
1 answer:
mina [271]4 years ago
3 0

Though the neutrophils constitutively express selectins and integrins, the P-/E-selectin and ICAMS (intercellular adhesion molecules) are only articulated on the vascular endothelium at the locations of inflammation.  

Or it can also be said that while the neutrophil adhesion molecules are constitutively expressed, the vascular endothelial adhesion molecules are induced.  


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Jack and Jill are twins. Because he is a boy, Jack’s parents encourage him to run. However, they discourage Jill from engaging i
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Answer: A) Non shared environmental influences

Explanation: Non shared environment influences are any aspects of the environment and any influences that can be different for different children within the same family. In this case , Jack was encouraged to run because he is a boy thereby enabling him to be able to run up the hill much faster than Jill despite the fact that they are both children in the same family.

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pentagon [3]

Lunar Tides: the moon's gravitational pull on the Earth is strongest at this time, because it is closest, causing especially high and low tides.

Solar Tides: the sun's gravitational pull on the Earth is strongest at this time, causing especially high and low tides (although it's not as powerful as lunar tides).

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Spring and Neap Tides occur twice every moon cycle, which lasts 28 days, so every two weeks.

https://oceanservice.noaa.gov/facts/springtide.html

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3 years ago
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1. Monosaccharides are also known as what?
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4 years ago
The afferent arteriole is _____ in diameter than the different arteriole, so that glomerular _____ is relatively high.
Marina86 [1]

The afferent arteriole is larger in diameter than the different arteriole, so that glomerular blood pressure is relatively high.

The afferent arterioles are a group of blood vessels that supply the nephrons in many excretory systems. They play an important role in the regulation of blood pressure as a part of the tubuloglomerular feedback mechanism.

The afferent arterioles branch from the renal artery, which supplies blood to the kidneys. The afferent arterioles later diverge into the capillaries of the glomerulus.

The glomerulus (plural glomeruli) is a network of small blood vessels (capillaries) known as a tuft, located at the beginning of a nephron in the kidney. Each of the two kidneys contains about one million nephrons.

The tuft is structurally supported by the mesangium (the space between the blood vessels), composed of intraglomerular mesangial cells. The blood is filtered across the capillary walls of this tuft through the glomerular filtration barrier, which yields its filtrate of water and soluble substances to a cup-like sac known as Bowman's capsule. The filtrate then enters the renal tubule of the nephron.

The glomerulus receives its blood supply from an afferent arteriole of the renal arterial circulation. Unlike most capillary beds, the glomerular capillaries exit into efferent arterioles rather than venules. The resistance of the efferent arterioles causes sufficient hydrostatic pressure within the glomerulus to provide the force for ultrafiltration.

The glomerulus and its surrounding Bowman's capsule constitute a renal corpuscle, the basic filtration unit of the kidney. The rate at which blood is filtered through all of the glomeruli, and thus the measure of the overall kidney function, is the glomerular filtration rate.

Learn more about afferent arterioles here : brainly.com/question/9691907

#SPJ4

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1 year ago
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