Unit 3 Control and Coordination

In a neuron, conversion of electrical signal to chemical signal occurs at

• Axonal end

• Dendritic end

• Cell body

• Axon

Correct sequence of electrical impulse transmission in a neuron is from

• dendrite, axon, axonal end,cell body

• cell body, dendrite, axon,axonal end

• dendrite, cell body, axon, axonal end

• axonal end, axon, cell body, dendrite

Which is the correct sequence of the components of a reflex arc

• Receptors, spinal cord,sensory neuron, motor neuron, muscle

• Receptors, muscle, sensory neuron, motor neuron, spinal cord

• Receptors, sensory neuron, spinal cord, motor neuron, muscle

• Receptors, motor neuron, spinal cord, sensory neuron, muscle

Posture and balance of the body is controlled by

• Cerebrum

• Cerebellum

• Medulla

• Pons

Which is not a reflex action

• Swallowing

• Coughing

• Knee jerk

• Closing of eyes on flashing light

Spinal cord originates from

• Cerebrum

• Medulla

• Cerebellum

• Pons

Part of the brain that controls respiration, heart beat and peristalsis is

• Cerebrum

• Cerebellum

• Hypothalamus

• Medulla

Most highly developed part of human brain is

• Pons

• Medulla

• Cerebrum

• Cerebellum

In human, the number of cranial nerves is

• 12

• 31

• 24

• 26

In humans, the number of spinal nerves is

• 12 pairs

• 31 pairs

• 33 pairs

• 11 pairs