Exploring the Nervous System: Anatomy and Functions

What is the primary function of the nervous system?

• To send signals throughout the body

• To digest food

• To produce hormones

• To pump blood

What is homeostasis?

• The body's ability to grow

• The body's ability to maintain balance

• The process of breathing

• The process of digestion

Tags

NGSS.HS-LS1-3

Which part of the nervous system is responsible for voluntary movements?

• Somatic nervous system

• Autonomic nervous system

• Peripheral nervous system

• Central nervous system

What is the role of the myelin sheath?

• To produce neurotransmitters

• To insulate neurons and prevent short circuits

• To connect neurons to muscles

• To send chemical signals

What is the basic unit of the nervous system?

• Axon

• Neuron

• Dendrite

• Synapse

What happens at the synapse?

• Blood is pumped

• Neurons are produced

• Muscles contract

• Electrical signals are converted into chemical signals

What can cause numbness and pins and needles sensations?

• Lack of sleep

• Eating too much sugar

• Damage to the nerves

• Excessive exercise

Tags

NGSS.HS-LS1-3

Which disease is characterized by the gradual deterioration of the nervous system?

• Diabetes

• Multiple sclerosis

• Asthma

• Hypertension

Which nutrient is important for the nervous system and can be found in bananas?

• Vitamin B

• Calcium

• Potassium

• Iron

Approximately how many neurons are in the human brain?

• 10 million

• 86 billion

• 100 thousand

• 1 trillion