A nerve chain between a receptor and an effector organ is called ........

Question

Complete the following sentences with appropriate words :

1. A nerve chain between a receptor and an effector organ is called ........

2. Optic nerve is a type Sensory nerve, whereas spinal nerves are .......

3. An inability to focus on nearby objects due to loss of elasticity of the lens with age is called ......

4. The part of the central nervous system which responds to the reflex action is .........

5. ....... is the organ of balance and hearing in the body.

6. Tympanic chamber is filled with ......

Answer 1

1. A nerve chain between a receptor and an effector organ is called Reflex arc.

2. Optic nerve is a type Sensory nerve, whereas spinal nerves are mixed nerves.

3. An inability to focus on nearby objects due to loss of elasticity of the lens with age is called Iris.

4. The part of the central nervous system which responds to the reflex action is Spinal cord.

5. Ear is the organ of balance and hearing in the body.

6. Tympanic chamber is filled with Perilymph.