BIOD 152. NERVOUS SYSTEM. MODULE
1. PORTAGE LEARNING QUESTIONS
WITH CORRECT ANSWERS 2026
The function of the nervous system is to integrate and control the other body systems. Explain how th
e nervous system does this. - CORRECT ANSWER -
The nervous system receives and processes information and sends out signals to the muscles and glan
ds to elicit an appropriate response. In this way, the nervous system integrates and controls the other
systems of the body.
What is the difference between anatomy and physiology? - CORRECT ANSWER -
Anatomy focuses on the structure of the body. Physiology looks at how the body parts function togeth
er. The physiology of the body depends on the anatomy of the body.
Role of nervous tissue? - CORRECT ANSWER -
Communication between the cells of the body by forming the system of electrical impulses that comm
unicates very fast. Nerves are "wiring" of the body.
Nervous system is divided into 2 divisions. - CORRECT ANSWER -Central nervous system (CNS),
Peripheral nervous system (PNS).
CNS includes - CORRECT ANSWER -Brain and spinal cord which lie in the midline of the body.
What do skull and vertebrae protect in CNS? - CORRECT ANSWER -
Skull protects brain and vertebrae protects spinal cord.
Role of CNS - CORRECT ANSWER -Sends signals and impulses to and receives impulses from PNS.
Definition of nuclei (CNS)
Definition of tracts (CNS)
Definition of ganglia (PNS)
Definition of nerves (PNS) - CORRECT ANSWER -Collection of cell bodies inside CNS.
,Collection of nerve axons in CNS.
Collection of cell bodies inside PNS.
Collection of nerve axons in PNS.
PNS includes - CORRECT ANSWER -All nerves that are not in the brain or spinal cord.
It includes cranial and spinal nerves.
Regions of brainstem - CORRECT ANSWER -Midbrain, pons, and medulla.
Where do cranial and spinal nerves project from? - CORRECT ANSWER -
Cranial nerves project from the brainstem. Spinal nerves project from both sides of the spinal cord.
Cranial nerves innervate - CORRECT ANSWER -Face, head, and neck.
Spinal nerves innervate - CORRECT ANSWER -The rest of the body, including trunk and extremities.
Subdivisions of PNS - CORRECT ANSWER -Sensory/afferent division and motor/efferent division.
Role of PNS - CORRECT ANSWER -PNS connects all parts of the body to CNS.
Receives impulses from sensory organs via sensory/afferent division and relays impulses from CNS to
muscles and glands via motor/efferent division.
Subdivisions of motor/efferent division. - CORRECT ANSWER -
Somatic nervous system and autonomic nervous system (ANS).
Somatic nervous system is... and controls... - CORRECT ANSWER -
... under conscious/voluntary control and ... controls ... the movements of skeletal muscles, skin, and jo
ints.
Autonomic nervous system is ... and controls... - CORRECT ANSWER -
... not under conscious control and ... controls glands and smooth muscles of internal organs.
, Divisions of ANS - CORRECT ANSWER -Sympathetic and parasympathetic nervous systems.
Role of sympathetic nervous system. - CORRECT ANSWER -
Prepares body for vigorous physical activities, stress, and emergencies.
Role of parasympathetic nervous system. - CORRECT ANSWER -
Active during normal situations, permits digestion, and conserves energy.
Neurons are - CORRECT ANSWER -
Nerve cells that conduct electrical impulses and send information throughout the body.
List 3 unusual characteristics of neurons. - CORRECT ANSWER --
they do not undergo mitosis (cell division)
- require enormous amounts of fuel being able to survive just minutes without oxygen
- can last an entire human lifetime
Basic parts of neurons - CORRECT ANSWER -Dendrites, cell body, and axon.
Why is brain or spinal cord injury so serious? - CORRECT ANSWER -
Neurons do not undergo mitosis/cell division and survive throughout person's life, therefore damage t
o brain or spinal cord is dangerous. Neurons that die due to brain damage cannot be replaced. They ca
n survive several minutes without O2.
Describe the structure and function of the neuron cell body/soma. - CORRECT ANSWER -
Synthesizes all nerve cell products, consists of nucleus and cytoplasm containing all organelles. Informa
tion in a neuron is received and sent in the same direction within a neuron.
Dendrites - CORRECT ANSWER -Receiving end of a neuron.
Multiple short extensions that come from the cell body, which receives information from other neuron
s and conducts these nerve impulses toward the cell body.
1. PORTAGE LEARNING QUESTIONS
WITH CORRECT ANSWERS 2026
The function of the nervous system is to integrate and control the other body systems. Explain how th
e nervous system does this. - CORRECT ANSWER -
The nervous system receives and processes information and sends out signals to the muscles and glan
ds to elicit an appropriate response. In this way, the nervous system integrates and controls the other
systems of the body.
What is the difference between anatomy and physiology? - CORRECT ANSWER -
Anatomy focuses on the structure of the body. Physiology looks at how the body parts function togeth
er. The physiology of the body depends on the anatomy of the body.
Role of nervous tissue? - CORRECT ANSWER -
Communication between the cells of the body by forming the system of electrical impulses that comm
unicates very fast. Nerves are "wiring" of the body.
Nervous system is divided into 2 divisions. - CORRECT ANSWER -Central nervous system (CNS),
Peripheral nervous system (PNS).
CNS includes - CORRECT ANSWER -Brain and spinal cord which lie in the midline of the body.
What do skull and vertebrae protect in CNS? - CORRECT ANSWER -
Skull protects brain and vertebrae protects spinal cord.
Role of CNS - CORRECT ANSWER -Sends signals and impulses to and receives impulses from PNS.
Definition of nuclei (CNS)
Definition of tracts (CNS)
Definition of ganglia (PNS)
Definition of nerves (PNS) - CORRECT ANSWER -Collection of cell bodies inside CNS.
,Collection of nerve axons in CNS.
Collection of cell bodies inside PNS.
Collection of nerve axons in PNS.
PNS includes - CORRECT ANSWER -All nerves that are not in the brain or spinal cord.
It includes cranial and spinal nerves.
Regions of brainstem - CORRECT ANSWER -Midbrain, pons, and medulla.
Where do cranial and spinal nerves project from? - CORRECT ANSWER -
Cranial nerves project from the brainstem. Spinal nerves project from both sides of the spinal cord.
Cranial nerves innervate - CORRECT ANSWER -Face, head, and neck.
Spinal nerves innervate - CORRECT ANSWER -The rest of the body, including trunk and extremities.
Subdivisions of PNS - CORRECT ANSWER -Sensory/afferent division and motor/efferent division.
Role of PNS - CORRECT ANSWER -PNS connects all parts of the body to CNS.
Receives impulses from sensory organs via sensory/afferent division and relays impulses from CNS to
muscles and glands via motor/efferent division.
Subdivisions of motor/efferent division. - CORRECT ANSWER -
Somatic nervous system and autonomic nervous system (ANS).
Somatic nervous system is... and controls... - CORRECT ANSWER -
... under conscious/voluntary control and ... controls ... the movements of skeletal muscles, skin, and jo
ints.
Autonomic nervous system is ... and controls... - CORRECT ANSWER -
... not under conscious control and ... controls glands and smooth muscles of internal organs.
, Divisions of ANS - CORRECT ANSWER -Sympathetic and parasympathetic nervous systems.
Role of sympathetic nervous system. - CORRECT ANSWER -
Prepares body for vigorous physical activities, stress, and emergencies.
Role of parasympathetic nervous system. - CORRECT ANSWER -
Active during normal situations, permits digestion, and conserves energy.
Neurons are - CORRECT ANSWER -
Nerve cells that conduct electrical impulses and send information throughout the body.
List 3 unusual characteristics of neurons. - CORRECT ANSWER --
they do not undergo mitosis (cell division)
- require enormous amounts of fuel being able to survive just minutes without oxygen
- can last an entire human lifetime
Basic parts of neurons - CORRECT ANSWER -Dendrites, cell body, and axon.
Why is brain or spinal cord injury so serious? - CORRECT ANSWER -
Neurons do not undergo mitosis/cell division and survive throughout person's life, therefore damage t
o brain or spinal cord is dangerous. Neurons that die due to brain damage cannot be replaced. They ca
n survive several minutes without O2.
Describe the structure and function of the neuron cell body/soma. - CORRECT ANSWER -
Synthesizes all nerve cell products, consists of nucleus and cytoplasm containing all organelles. Informa
tion in a neuron is received and sent in the same direction within a neuron.
Dendrites - CORRECT ANSWER -Receiving end of a neuron.
Multiple short extensions that come from the cell body, which receives information from other neuron
s and conducts these nerve impulses toward the cell body.
