Understanding the Nervous System

The video explores the diversity of body cells, focusing on the nervous system. It covers the central and peripheral nervous systems, detailing brain regions and their functions. The peripheral nervous system is divided into somatic and autonomic systems, with further division into sympathetic and parasympathetic systems. The video explains neuron and glial cell roles, emphasizing action potentials and neurotransmitter functions. It concludes with a recap and encourages interest in neurology careers.

Which type of cell is responsible for producing stomach acid?

• Skeletal muscle cells

• Parietal cells

• Mast cells

• Neurons

What are the two main divisions of the nervous system?

• Somatic and Autonomic

• Cerebral and Cerebellar

• Central and Peripheral

• Sympathetic and Parasympathetic

Which part of the brain is involved in regulating breathing and heart rate?

• Midbrain

• Cerebrum

• Cerebellum

• Medulla

What is the primary function of the somatic nervous system?

• Controlling voluntary muscle movements

• Balancing hormones

• Regulating heart rate

• Managing digestion

Which system is activated during a 'fight or flight' response?

• Parasympathetic

• Somatic

• Sympathetic

• Central

What is the main role of glial cells in the nervous system?

• Regulating blood flow

• Transmitting signals

• Supporting neurons

• Producing neurotransmitters

What structure in a neuron receives incoming signals?

• Synapse

• Cell body

• Dendrite

• Axon

What is the resting potential of a neuron typically measured at?

• -30 mV

• +70 mV

• 0 mV

• -70 mV

What happens during depolarization in an action potential?

• Na+ enters the cell

• K+ enters the cell

• K+ exits the cell

• Na+ exits the cell

What is the role of neurotransmitters in neuron communication?

• They transmit signals across synapses

• They maintain resting potential

• They insulate the axon

• They generate action potentials