Neural control and coordination Flashcards
1
Q
2 types of peripheral nerves
A
- All the nerves arising from brain and spinal cord are included in
peripheral nervous system. - Nerves arising from brain are called cranial nerves, and nerves
coming out of spinal cord are called spinal nerves. - In humans, 12 pairs of cranial nerves and 31 pairs of spinal nerves
are present.
2
Q
functions of the autonomic nervous sytem
A
System which automatically regulates the
activities of involuntary smooth muscles, cardiac muscles and glands which
are not under the control of our will is called ANS.
*Significance of ANS → It plays an important role in maintaining the
constant internal environment (homeostasis).
*Divisions of ANS-
1.Sympathetic NS- Fear, Fight or Flight
2.Parasympathetic NS- Rest or Digest
*Sympathetic and Parasympathetic nervous system are antagonistic to each
other. Both help in maintaining the constant internal environment
3
Q
A