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Mumz [18]
3 years ago
15

The mitotic spindles arise from which cell structure?

Biology
1 answer:
Lapatulllka [165]3 years ago
5 0

Answer:

The correct option is : b. centrosome

Explanation:

Centrosome is a cell organelle, which acts as the microbule organizing center and also regulates the cell cycle progression in an eukaryotic cell.

During the prophase stage of the cell cycle, the centrosomes are associated with the membrane of the nucleus. The nuclear membrane ruptures during the mitosis and the interaction of the centrosome nucleated microtubules with the chromosomes leads to the formation of the mitotic spindle.

<u>Therefore, mitotic spindles arise from the centrosome.</u>

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As the nurse is shaving a patient who is 2 days postoperative from a thyroidectomy, the patient has a spasm of the facial muscle
nadya68 [22]

The nurse should recognize this as Chvostek sign.

<h3>What is Chvostek sign?</h3>

A clinical indication that someone may have low blood calcium levels is the Chvostek sign (a decreased serum calcium, called hypocalcemia). The aberrant twitching of muscles that are stimulated (innervated) by the facial nerve  (also known as Cranial Nerve Seven, or CNVII) is known as the Chvostek sign.

The facial muscles on the same side of the face will occasionally contract when the facial nerve is touched in front of the ear (called ipsilateral facial spasm). Frequently, the muscles that regulate the nose, lips, and brows will spasm.

To learn more about Chvostek sign with the help of given link:

brainly.com/question/14055210

#SPJ4

8 0
1 year ago
Give importances of locomotion in man
zheka24 [161]

Answer:

Locomotion is essential for  various internal and external bodily functions

Explanation:

Locomotion is the art through which our body exhibit various functions and also escapes various condition of environment.  

For instance –

a) Through movement of limbs, actions such as running, walking, jumping, crawling, swimming, etc are performed.

b) Movement of body parts and joints helps in taking different comfortable postures.

c) Even some body parts move even when it is not essentially vital for the function being performed such as movement of eyeball and external ear while swallowing food.  

d) Movement of nutrients and blood with in the circulation system and digestive system.

e) Movement of sense organs when exposed to extreme environmental conditions.

7 0
3 years ago
Mitral valve prolapse severe enough to cause regurgitation may directly cause _________________ pressure in the ____________ atr
GenaCL600 [577]
Mitral valve prolapse severe enough to cause regurgitation may directly cause INCREASE pressure in the LEFT atrium. Mitral valve prolapse is a medical condition in which the the two valve flaps of the mitral valve do not close properly, bulging upward into the left atrium. The condition may be mild or severe. Heart surgery may be required in case of the severe one.
7 0
3 years ago
how does a physical property such as mass or texture change without causing a change in the substance
d1i1m1o1n [39]
Through the process called osmosis..a process by which cells pass through a semipermeable membrane to a less concentrated area
7 0
3 years ago
How do earthworms enrich plant growth?
Luba_88 [7]

Answer:

They tunnel through the soil, which allows air to enter.

Explanation:

Earthworms are considered to be agriculturally friendly living organisms that hold immense importance in improving the growth and productivity of plants.

They live in the soil and feed on the debris of plants such as manure, grasses, roots and dead leaves. They extensively channel and tunnel through soils while moving that causes loosening of the soil resulting in more aeration of the soil. The more the soil aeration is, the better soil drainage is.

Studies have shown that soil containing earthworms have ten times better drainage than soils that donot have earthworms. Therefore, C is the best option.


Hope it help!

7 0
3 years ago
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