Nervous System

The video explores the diversity of body cells, focusing on the nervous system. It covers the central and peripheral nervous systems, detailing their structures and functions. The video explains the roles of neurons and glial cells, and describes the action potential process, including neurotransmitter release. It concludes with a recap and encourages further exploration of neurology.

Which type of cell is responsible for producing stomach acid?

• Mast cells

• Parietal cells

• Skeletal muscle cells

• Neurons

What are the two main components of the central nervous system?

• Stomach and intestines

• Heart and lungs

• Nerves and muscles

• Brain and spinal cord

Which part of the brain is involved in balance and movement coordination?

• Cerebrum

• Cerebellum

• Medulla

• Thalamus

What is the primary function of the somatic nervous system?

• Controlling voluntary muscle movements

• Regulating heart rate

• Maintaining blood pressure

• Digesting food

Which system is responsible for the 'fight-or-flight' response?

• Somatic nervous system

• Sympathetic system

• Central nervous system

• Parasympathetic system

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

• Supporting and insulating neurons

• Transmitting signals

• Producing hormones

• Digesting nutrients

What is the function of myelin sheaths in neurons?

• To insulate axons and speed up signal transmission

• To store energy

• To protect the cell body

• To produce neurotransmitters

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

• 0 mv

• -70 mv

• -30 mv

• 70 mv

What happens during depolarization in an action potential?

• K+ ions leave the cell

• NA+ ions enter the cell

• The cell stops transmitting signals

• The cell becomes more negative

What is the role of neurotransmitters in neuron communication?

• To insulate the axon

• To store energy

• To digest nutrients

• To transmit signals across the synaptic cleft