NERVOUS SYSTEM PRACTICE QUESTION

LABEL THE NEURON

a

b

c

d

e

f

CENTROSOME

DENDRITE

SCHWANN CELL

AXON TERMINAL

CYTON

AXON

NODE RANVIER

LYSOME

IDENTIIFY THE PART INVOLVE IN REFLEX ACTION

a

b

c

d

e

BRAIN

SENSORY NEURON

MOTOR NEURON

SPINAL CHORD

PITUATARY

EFFECTOR

DORSAL ROOT

RECEPTOR

​ Spinal cord is made up of nerves which supply information to think about. Thinking involves more complex ​ mechanisms and neural connections. These are concentrated in the brain, which is the main coordinating center of the body. The brain and spinal cord constitute the ​ (a)   system. They receive information from all parts of the body and integrate it. We also think about our actions. Writing, talking, moving a chair, clapping at the end of a programme are examples of ​ (b)   which are based on deciding what to do next. So, the brain also has to send messages to muscles. This is the second way in which the nervous system communicates with the muscles. The communication between the central nervous system and the other parts of the body is facilitated by the peripheral nervous system consisting of ​ (c)   arising from the brain and spinal nerves arising from the spinal cord. The brain thus allows us to think and take actions based on that thinking. As you will expect, this is accomplished through a complex design, with different parts of the brain responsible for integrating different inputs and outputs. The brain has three such major parts or regions, namely the forebrain, mid-brain and hind-brain. The fore-brain is the main thinking part of the brain. It has regions which receive sensory impulses from various receptors. Separate areas of the ​ (d)   are specialized for hearing, smell, sight and so on. There are separate areas of association where this sensory information is interpreted by putting it together with information from other receptors as well as with information that is already stored in the brain. Based on Control and Coordination all this, a decision is made about how to respond and the information is passed on to the motor areas which control the movement of voluntary muscles, for example, our leg muscles. However, certain sensations are distinct from seeing or hearing, for example, how do we know that we have eaten enough? The sensation of feeling full is because of a centre associated with hunger, which is in a separate part of the ​ (e)  

• central nervous
• voluntary actions
• fore-brain
• forebrain
• spinal cord
• hind-brain
• mid-brain
• cranial nerves

Label the parts of the brain listed:

a

b

c

d

e

f

Cerebellum

Temporal lobe

Brainstem

Frontal lobe

Occipital lobe

Parietal lobe

1.Clapping is a ​ ...............................

• voluntary action
• involuntary action
• Both

1.Breathing is a ​ ...............................

• voluntary action
• involuntary action
• Both

Choose the action control by fore brain

• hearing

• smell

• sensation of feeling full

• walking in straight line

Choose the neural control done by medulla

• blood pressuer

• vommiting

• riding cycle

• walking in straight line

Choose the neural control done by cerebellum

• blood pressuer

• maintaining posturer of the body

• riding cycle

• walking in straight line

• reasoning

Sneezing is a ...............................

• voluntary action

• involuntary action

• Both