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k0ka [10]
3 years ago
12

What is A? plsssss helppppp​

Biology
1 answer:
Salsk061 [2.6K]3 years ago
6 0

Answer:

It should be called the amniotic sac-

it's the fluid sac in which the fetus develops (it's also what bursts when it's called "breaking water"

Explanation:

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The treelike fibers that receive information and send it toward the neuron's cell body are called ____
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Answer:

The treelike fibers that receive information and send it toward the neuron's cell body are called Dendrite

Explanation:

Dendrite:-  They are tree like projections generally the extension of nerve cell which helps in the transmission of nerve impulses or electrochemical stimulation from one neuron to another. It is also known as dendrons. For neurons to become active they need some action potential, these action potentials are received in the form of nerve impulses or electrochemical stimulation by dendrite and is been stored  in the cell body, or soma, of the neuron. Dendrites are covered by synapses (Structure that permit neural transmission).

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3 years ago
The lungs remain inflated because ___________.a. intrapleural pressure is exactly equal to atmospheric pressure b. intrapleural
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Answer:

Option C,  Intrapleural pressure is less than intrapulmonary pressure

Explanation:

During inspiration, the air enters the lungs due to lower pressure in the intrapulmonary or intra-alveolar  than the atmospheric pressure. During quite respiration, the intrapulmonary pressure reduces to a pressure that is 3 mm Hg lower than that of atmospheric pressure. During quiet expiration, the intrapulmonary pressure rises up to a pressure that is 3 mm Hg higher than that of atmospheric pressure. This leads to lack of air in the intrapleural space thereby producing intrapleural pressure which is lesser than that of intrapulmonary pressure.  

This difference in pressure (i.e higher pressure with in the lungs than the atmosphere)  causes lungs to remain attached to the chest wall and hence looks inflated.  

Hence, option C is correct

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