Question

Q. Give reasons.

1) Kidney stones may cause severe pain.

2) Both voluntary and involuntary actions are important for our body.

Q) Answer in short.

1) Distinguish between cyton and axon.

2) Draw a well labelled diagram of neurone.

3) Explain briefly about the human brain.​

Answer 1

Answer:

Q 1 The pain associated with kidney stones usually is the result of spasms triggered by a stone stuck in the ureter, coupled with pressure in the kidney from urine backup. Kidney stones form from minerals and acid salts. About 85 percent of kidney stones are calcium-based, typically calcium oxalate.

Explanation:

Q 2 1 Cyton is the central or cell body of a neuron containing the nucleus and excluding its processes. ... Axon, also called nerve fibre, portion of a nerve cell (neuron) that carries nerve impulses away from the cell body. A neuron typically has one axon that connects it with other neurons or with muscle or gland cells.

2. the brain is one of the largest and most complex organs in the human body. It is made up of more than 100 billion nerves that communicate in trillions of connections called synapses. ... The brain stem is between the spinal cord and the rest of the brain. Basic functions like breathing and sleep are controlled here