IB SEHS Nervous System Review

The nervous system is made up of billions of specialized cells called:

• Muscle cells

• Neurons

• Blood cells

• Bone cells

Which of the following is NOT one of the three main functions of the nervous system?

• Sensory

• Integrative

• Motor

• Digestive

The central nervous system (CNS) consists of:

• Brain and spinal cord

• Brain and peripheral nerves

• Spinal cord and muscles

• Nerves and receptors

Afferent nerves carry information:

• From brain to body

• From body to brain

• Within the brain only

• Between muscles

The somatic nervous system controls:

• Heart rate

• Digestion

• Voluntary muscle movements

• Breathing

Which division of the autonomic nervous system is known as 'fight or flight'?

• Parasympathetic

• Sympathetic

• Somatic

• Central

Proprioceptors detect:

• Light changes

• Sound waves

• Body position and movement

• Temperature changes

Baroreceptors are specialized to detect changes in:

• Blood pressure

• Body temperature

• Light intensity

• Sound frequency

The parasympathetic nervous system is often called:

• Fight or flight

• Rest and digest

• Stop and go

• Push and pull

Efferent nerves are also known as:

• Sensory nerves

• Motor nerves

• Mixed nerves

• Connecting nerves