1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dsp73
3 years ago
5

Glial cells called _____ help maintain the blood-brain barrier, whereas _____ create the myelin that envelopes axons. astrocytes

; microglia Schwann cells; astrocytes microglia; Schwann cells astrocytes; Schwann cells
Biology
2 answers:
-BARSIC- [3]3 years ago
8 0

Answer:

Glial cells called 'Glai' or 'neuroglia'

'Oligodendrocytes' create the myelin that envelope axons.

Explanation:

Glial cells are non neuronal cells in the CNS (central nervous system) i.e, the brain and spinal cord, and the peripheral nervous system (nerves and ganglia outside the CNS) that do not produce electrical impulse.

They maintain homeostasis, form myelin sheath, surrounds and hold neurons, supply nutrients and oxygen to neurons, fight and destroy pathogen, remove dead neurons, play an important role in neurotransmission and synaptic connections.

In the CNS, Glial cells include the Oligodendrocytes, astrocytes, ependymal cells and microglia while in the peripheral nervous system, the Glial cells are schwann cells and satellites cells.

Oligodendrocytes main function to the Glial cells is to provide support and insulation to the axons of CNS. This is done by creating the myelin sheath. In the peripheral nervous system, schwann cells produce the myelin sheath that support the axons.

Astrocytes, collectively known as astroglia provides biochemical support for endothelial cells that make up the blood- brain barrier, nutrient to nervous tissues and play vital role in repair and scarring act of the CNS as a result of traumatic injury.

Microglia are neuroglia cells that act as the first and active immune defense in brain and spinal cord. They are vital cells in brain maintenance. They regularly scavenge the CNS for plagues, damages and removal of effected or dead neurons

mihalych1998 [28]3 years ago
5 0

Answer: Glial cells called ASTROCYTES help maintain the blood-brain barrier, whereas SCHWANN CELLS create the myelin that envelopes axons

Explanation: Glial cells are specialized cell that are found in both central and peripheral nervous systems, that surrounds the neurones, providing them with support and insulation. There are different types of Glial cells these includes:

- Astrocytes: they maintain the blood brain barrier.

- Schwann cells: create the myelin that envelopes axons of the peripheral nervous system neurones.

- satellite cells: These cells help regulate the external chemical environment of neurones.

- Microglia: they clean up cellular debris through phagocytosis.

- Oligodendrocytes: create the myelin that envelopes axons of the central nervous system

You might be interested in
HELP PLEASE IM BEGGING YOU
Ludmilka [50]

Answer:

You have the right answer, its B.

Explanation:

6 0
3 years ago
Read 2 more answers
Whats more important your kid or a dog
damaskus [11]
I would choose the kid 
because it your kid man you cant abandon them
plus when there small there very squishy and soft
and they smell like baby powder
8 0
3 years ago
While a relatively inefficient mode of transmission, _____________ accounts for 90% of HIV infections worldwide.
Marat540 [252]

Answer:

The correct answer is - sexual transmission.

Explanation:

HIV infections can be transmitted by the various mode. Sexual transmission is one of the major mode of transmission which is comprise almost 90 % of HIV infection, according to the reports. These are relatively inefficient mode, unprotected or unnatural sex is the major mode for the HIV transmission worldwide. Cases are now comparatively less than when it was discovered due to awareness.

Thus, the correct answer is - sexual transmission.

3 0
3 years ago
If a healthy 6-year-old child (who does not have evidence of immunity to varicella) was exposed to a confirmed case of varicella
Valentin [98]

Administer varicella vaccine to the health 6-year old child (who does not have evidence of immunity to varicella) was exposed to a confirmed case of varicella 2 days ago.

Explanation:

It is seen that if a child receives varicella vaccine between 3 to 5 days of exposure, he is safe as disease will not appear in him and would be saved for future infections.

Varicella vaccine is given for prevention against small pox. It is expected once immunised with varicella body will produce antibodies for a span of twenty years or more.

6 0
3 years ago
A landfill is an area that has been cleared out in order for humans to dispose of waste products.
choli [55]
B. Soil Contamination

All the other answers are talking about clean and pure things while this answer is the only negative one. So B is your answer.
8 0
2 years ago
Other questions:
  • Cellular respiration is an anabolic process. select one: <br> a. True <br> b. False
    10·1 answer
  • Am not sure so can u plz help me
    14·1 answer
  • A scientist observes that little to no plant life exists in the Atacama Desert. However, in rare periods of rain, flowers and pl
    11·2 answers
  • If a person is 5 foot 3 inches tall, how many inches tall is the individual all together?
    5·2 answers
  • Community A has 21 species. of the 110 individuals, there are 50 individuals of one species and 3 each of the other 20 species
    8·1 answer
  • Identfy the incorrect statement about active transport. a)It doesn't require the use of a cell's energy b)None of the choices. c
    7·2 answers
  • Why is meiosis important when trying to explain mendels conclusions
    15·2 answers
  • What is the initial velocity of the reaction catalyzed by the wild-type enzyme when the substrate concentration is 10 mM?
    14·1 answer
  • Grasslands are biomes that are very valuable as areas for farming and grazing livestock. In
    11·2 answers
  • Which is the only Kingdom in which all members have the property of motility?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!