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प्रश्न
What is the need for a system of control and coordination in an organism?
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उत्तर
An organism has various organs that must be carefully controlled and coordinated for its survival. In the body, various fluids are secreted from the endocrine system's glands. These hormones are responsible for the overall growth and development of an organism. The central nervous system (CNS) controls all other daily decisions, including voluntary and involuntary actions.
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संबंधित प्रश्न
State the different types of neurons.
Write a and b in the given flow chart of the neuron through which information travels as an electrical impulse.
The spinal cord originates from:
The human body contains a large number of cells A which are very long and branched, and look like electric wires. The longest branch of this cell is B whereas there are many small branches C. Any two A cells do not join to one another completely in the human body. There is a microscopic gap D between every pair of adjacent A cells through which electric impulses can pass by the release of a chemical substance.
(a) What are cells A?
(b) What is the name of (i) branch B, and (ii) branches C?
(c) What is the microscopic gap D known as?
(d) What is the function of cells like A in the human body?
(e) The cells A are of three types. name the three types.
Name the following:
Five sense organs of human beings and the sensation perceived by each one.
Name the following:
Flap like structure of outer ear.
Fill in the blank:
A neuron consists of ..................... and ...................
Fill in the blank:
The three main parts of the brain are ................................ and ............................
Compare the nervous system and the endocrine system.
Distinguish between the following pair of words:
Nervous system and hormonal system
Draw the following diagram:
Draw a neat labeled diagram of a neuron.
Name the parts (a) to (e) in the following diagram.
What is the term given to the sequence of events occurring in the diagram?
Explain the Term: Nerve
Explain the Term: Ganglion
State the Function:
Acetylcholine
Choose the Odd One Out:
Complete the following sentence with appropriate Word
Neurilemma is:
Vomiting centre is located in ______
Which part of the brain has control over the endocrine system?
