GNPY115 Topic 1

What is the basic unit of the nervous system?

• Neuron

• Glial cell

• Synapse

• Axon

Describe the role of dendrites in a neuron.

• Dendrites act as the main energy source for the neuron.

• Dendrites transmit signals to muscles.

• Dendrites receive and process signals from other neurons.

• Dendrites are responsible for producing neurotransmitters.

How does the spinal cord contribute to reflex actions?

• The spinal cord only transmits signals to the brain.

• The spinal cord facilitates reflex actions by processing sensory signals and coordinating immediate motor responses.

• The spinal cord has no role in motor responses.

• Reflex actions are solely controlled by the brain.

What is the function of the peripheral nervous system?

• The peripheral nervous system is responsible for hormone production.

• The peripheral nervous system processes sensory information exclusively.

• The peripheral nervous system transmits signals between the central nervous system and the rest of the body.

• The peripheral nervous system controls voluntary muscle movements.

Name the two main divisions of the peripheral nervous system.

• Sympathetic nervous system and parasympathetic nervous system

• Cerebral cortex and spinal cord

• Somatic nervous system and autonomic nervous system

• Central nervous system and endocrine system

What are the major parts of the brain?

• Thalamus, Hypothalamus, Pineal Gland

• Frontal Lobe, Occipital Lobe, Temporal Lobe

• Medulla Oblongata, Pons, Corpus Callosum

• Hindbrain, midbrain, forebrain

How does the cerebellum contribute to motor control?

• The cerebellum is responsible for coordinated movement, balance and posture

• The cerebellum inhibits all motor activity.

• The cerebellum is responsible for sensory perception.

• The cerebellum generates motor commands independently.

What is the role of neurotransmitters in neural communication?

• Neurotransmitters transmit signals between neurons, enabling neural communication.

• Neurotransmitters are responsible for muscle contraction.

• Neurotransmitters are only found in the brain.

• Neurotransmitters block signals between neurons.

Describe the blood-brain barrier and its significance.

• The blood-brain barrier is a type of blood vessel that carries oxygen to the brain.

• The blood-brain barrier is primarily responsible for producing cerebrospinal fluid.

• The blood-brain barrier allows all substances to pass freely into the brain.

• The blood-brain barrier is a protective barrier that regulates the passage of substances between the bloodstream and the brain, crucial for maintaining brain health and function.

What is number 2?

• Cerebrum

• Cerebellum

• brain stem

• spinal cord