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uranmaximum [27]
3 years ago
9

Which of the following explains why the brain is important to sight?

Biology
2 answers:
Lyrx [107]3 years ago
7 0
The answer is B, it is the only answer that talks about electric signals.
melamori03 [73]3 years ago
6 0
I think the answer is B or A, but I'm more leaning towards B.
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These cellular structures are utilized in strong involuntary muscle contractions and transmission of electrical impulses. ______
sertanlavr [38]

Answer:

The best answer to the question: These cellular structures are utilized in strong involuntary muscle contractions and transmission of electrical impulses, would be: T-Tubules.

Explanation:

In both skeletal and cardiac muscle, not smooth muscle, because of the way that the muscle fibers are conformed into tight bundles of sarcomeres (skeletal muscle) and myocardiocytes (cardiac muscle), there is a need for a series of structures that will ensure that when there is a stimulus from the nervous systems, these stimulus will propagate to all the cells in the fibers, and not just one.

Aside from counting with a neuromuscular motor plate, which will receive the neurotransmitter from the nerve endings and produce the appropriate reactions, as well as propagate that reaction to all the cells that are being stimulated, muscle fibers also have a structure known as T-Tubules. T-Tubules are formations much like roadways of cell plasma membrane that connect not just one, but all the cells within a muscle fiber so that once a stimulus comes, all the cells will initiate the process of calcium release and action potential propagation. These T-Tubules will ensure that electrical impulses reach all muscle cells and that all cells react at the same time as needed.

5 0
3 years ago
The output region is the site of ______________________.
tester [92]

Answer:

The correct answer is option C (voltage gated Na+ channels).

Explanation:

Output region or axon terminal is the structure of neuron which transmits the signals to other nerve cells.

The signal is transferred via action potential generated by the dendrite cell which moves along the axon and reaches the synaptic junction.  

At the synaptic junction, voltage-gated channel (Na+) channels located in the membrane of the axon terminal cell opens due to the changes in the electric membrane potential which play important role in returning the depolarized cell to a resting state.

Thus, option C (voltage-gated Na+ channels) is the correct answer.

7 0
3 years ago
The actual exchange of gas occurs at the
Lelechka [254]

Answer:

gas station, or butt

Explanation:

the gas station can fill your car and exchange gas with the pump. when you fart you exchange gas with the air.

6 0
2 years ago
What condition occurs when fluid accumulates in the lungs, preventing them from breathing adequately?
Norma-Jean [14]

Answer: Pulmonary edema

Explanation:

Pulmonary edema is the condition in which there is an excess of fluid in the lungs. This fluid gets collected in the air sacs which causes hindrance in breathing.

Most of the heart related diseases causes pulmonary edema. Pulmonary edema can be caused due to pneumonia, trauma in the chest wall and exercising at higher elevations. It is very fatal if not cured on time.

Hence, the correct answer is pulmonary edema.

3 0
3 years ago
What’s the difference between budding, parthenogenesis give two examples?
trapecia [35]
Do u have snap bc there’s a gc where we help each other with work if u need it
6 0
3 years ago
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