Nervous System

What's the primary function of the nervous system?

• Regulating body temperature
• Transmitting signals between different parts of the body
• Digesting food
• Producing hormones

Which of the following is the basic unit of the nervous system?

• ribosome
• mitochondria
• neuron
• red blood cell

Which part of the neuron receives signals from other neurons?

• Axon
• Dendrites
• Cell body
• Synapse

The central nervous system consists of the

• heart and lungs
• liver and kidneys
• brain and spinal cord
• stomach and intestines

Which part of the brain is responsible for regulating basic bodily functions such as breathing and heart rate?

• Medulla oblongata
• Parietal lobe
• Frontal lobe
• Cerebellum

What is the role of neurotransmitters in the nervous system?

• They regulate blood sugar levels in the body
• They transmit signals across a synapse from one neuron to another
• They are responsible for maintaining bone density
• They control the production of red blood cells

Which division of the peripheral nervous system controls voluntary muscle movements?

• Somatic nervous system
• Sympathetic nervous system
• Autonomic nervous system
• Central nervous system

The myelin sheath is essential for?

• increasing the speed of electrical impulses in nerve fibers
• insulating and protecting nerve fibers
• regulating body temperature
• providing nutrients to nerve cells

What is the role of the hypothalamus in the brain?

• Regulating blood sugar levels
• Regulating body temperature, hunger, thirst, and hormone release
• Controlling muscle movement
• Processing visual information

The fight-or-flight response is primarily controlled by the?

• sympathetic nervous system
• digestive system
• endocrine system
• parasympathetic nervous system