PDF Notes: 26_A&P_SAMPLE (1)

What is the function of a receptor?

Reacts to a stimulus.

What does a sensory neuron do?

Conducts impulses to the CNS.

What is the role of an interneuron?

Connects sensory and motor neurons within the CNS.

What does a motor neuron do?

Conducts impulses from CNS to effector.

What is the function of an effector?

Responds by contracting or secreting a product.

Which neuron is the interneuron?

Neuron C.

Which neuron is the sensory neuron?

Neuron B.

Which neuron is the motor neuron?

Neuron A.

What is the function of the myelin sheath?

Provides insulation for the axon.

What is the order of impulse travel through a neuron?

Dendrite (3) -> Cell body (2) -> Axon (1).

What is the function of the medulla oblongata?

Controls vital reflexes like heartbeat and respiration.

What does the reticular formation do?

Sets priorities for sensory information.

What is the role of the cerebellum?

Coordinates muscle tone and balance.

What does the cerebrum control?

Manages conscious activities.

What is the function of the hypothalamus?

Regulates hormone control.

What happens when a nerve impulse reaches the axon terminal?

Neurotransmitters are released into the synaptic cleft.

What do alpha waves indicate?

Relaxation with closed eyes.

What are the five types of sensory receptors?

Mechanoreceptors, thermoreceptors, photoreceptors, chemoreceptors, nociceptors.

Where are sense organs located?

In specific areas of the body like eyes, ears, skin.

What are the special senses?

Vision, hearing, taste, smell, and balance.

Where are general sense receptors located?

Throughout the body, especially in skin and organs.

What do general senses detect?

Touch, pain, temperature, and pressure.

What type of receptors are Meissner’s corpuscles?

Skin receptors for light touch.

What do nociceptors respond to?

Painful stimuli and potentially damaging conditions.

What do Pacinian corpuscles detect?

Pressure deep in the skin.

What are proprioceptors?

Stretch receptors in joints and tendons.

What do Ruffini endings respond to?

Continuous pressure in the dermis.