2024 Anatomy and Physiology Midterm Quiz

Which of the following is part of the Peripheral Nervous System (PNS)?

• Brain

• Spinal cord

• Cranial nerves

• Cerebrum

Which statement best describes a difference between the CNS and the PNS?

• The CNS includes only sensory neurons; the PNS includes motor neurons.

• The CNS processes information; the PNS transmits information to and from the CNS.

• The CNS is involved in reflexes, while the PNS is not.

• The CNS operates automatically, while the PNS controls voluntary actions.

Which of the following structures is responsible for the sensory and motor communication between the CNS and the rest of the body?

• Medulla oblongata

• Peripheral nerves

• Cerebral cortex

• Spinal cord tracts

What is gray matter primarily composed of?

• Axons and myelin

• Dendrites and cell bodies

• Blood vessels

• Schwann cells

How does white matter differ from gray matter in the nervous system?

• White matter contains cell bodies, while gray matter contains axons.

• White matter facilitates signal transmission; gray matter is for processing information.

• White matter is unmyelinated; gray matter is myelinated.

• White matter is found in the brain, but gray matter is not.

Which of the following is true about the distribution of gray and white matter in the spinal cord?

• Gray matter is external, and white matter is internal.

• White matter surrounds the gray matter.

• Both gray and white matter are evenly distributed.

• White matter is present only in sensory pathways.

Which of the following is a function of the nervous system?

• Blood circulation

• Hormone production

• Sensory input

• Nutrient absorption

The nervous system's primary functions include:

• Supporting cell metabolism, regulating glucose levels, and maintaining posture.

• Gathering information, integrating data, and coordinating motor output.

• Absorbing nutrients, balancing electrolytes, and synthesizing enzymes.

• Circulating hormones, storing memories, and producing blood cells.

Tags

NGSS.HS-LS1-3

Which of these scenarios best demonstrates the function of integration in the nervous system?

• A reflex action when you touch something hot.

• Processing visual signals to recognize a face.

• Feeling pain in your foot when stepping on a sharp object.

• Controlling your heart rate during exercise.

Which major nervous system function involves detecting stimuli?

• Sensation

• Integration

• Response

• Regulation