Biology
The figure given below shows a simple reflex, brought out by spinal cord, when a person touches a hot iron.
Which of the options given below will be correct for the receptor and effector in the diagram shown above ?
- Iron and finger
- Muscles and skin
- Skin and muscles
- Finger and arm
Related Questions
Gyri and sulci are richly found in :
- Renal cortex
- Cerebral cortex
- Spinal cortex
- Adrenal cortex
The white matter of cerebrum mainly consists of :
- Cytons
- Dendrons
- Axons
- Dendrites
Assertion (A): Effectors are the part of our body which, on receiving stimulus, set up waves of impulses towards the central nervous system.
Reason (R): The specialized epithelial cells of certain organs are capable of receiving stimuli which can be light, sound, heat, pain, hunger, etc.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.
Assertion (A): The aggregates of the cell bodies or perikaryons of neurons form the synapse.
Reason (R): Ganglia are the structures from which the nerve fibres may arise or enter into, whereas the synapse connects two neurons with a small gap in between.
- Both A and R are True
- Both A and R are False
- A is True and R is False
- A is False and R is True