Anatomy Sem 1 Unit 5 The Nervous System

What is the insulated coating or sheath on some axons called?

• dendrite

• glia

• neurotransmitter

• myelin

What is the blood brain barrier?

• the feature that helps maintain homeostasis of the brain

• the function of red blood cells providing energy to power neurons

• the chain of interactions that allows an electric pulse to be interpreted as taste, smell, and so on

• the thin protective membrane that covers the spinal column

Which type of glia is found outside the CNS?

• Schwann cells

• microglia

• astrocytes

• oligodendrocytes

Which two parts of the brain are related to breathing?

• diencephalon and medulla oblongata

• midbrain and pons

• cerebrum and cerebellum

• pons and medulla oblongata

Which of the following represents how neurologists would refer to the "third" cranial nerve?

• C

• 3

• tertiary

• III

Using meditation to de-stress after a rough day would tap into your:

• somatic nervous system.

• sympathetic nervous system.

• parasympathetic nervous system.

• decentralized nervous system.

Your ____ nerves are primarily ____.

• olfactory; chemoreceptors

• hop; thermoreceptors

• optic; mechanoreceptors

• auditory; photoreceptors

What protein facilitates transmission of nerve signals between neurons?

• neurotransmitters

• interneurons

• axons

• myelin

Axons that have a myelin sheath are sturdier but conduct nerve impulses more slowly than those that do not.

• True

• False

When a doctor tests your reflex by tapping your knee with a rubber hammer, it sends a sensory signal to the spinal cord, down the descending tract, and to the brain.

• True

• False