age 1 of 83
BIO 253 FINAL EXAM 2 STUDY GUIDE 2025/2026
COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES || 100% GUARANTEED
PASS <RECENT VERSION>
Parietal Lobes .....Answer.....sensory areas provide sensation of
temperature, touch, pressure, and pain involving skin. association
areas function in understanding speech and in using words to
express thought and feelings
Temporal Lobes .....Answer.....sensory area are responsible for
hearing. association areas interpret sensory experiences and
remember visual scenes, music, and other complex sensory
patterns
,age 2 of 83
Occipital Lobes .....Answer.....sensory areas are responsible for
vision. associated areas combine visual images with other sensor
experiences
What are the two cell types in neural tissue? .....Answer.....1.)
Neuron
2.) Neuroglia
What are the two groups of nervous system organs?
.....Answer.....1.) Central Nervous system
2.) Peripheral Nervous system
What are the general functions of the nervous system?
.....Answer.....-The nervous system can process a wide variety of
information from the external environment, including sight ,
sounds, and touch on the surface of the skin.
,age 3 of 83
What is a neuron? .....Answer.....-A nerve cell, the fundamental
unit of the nervous system, responsible for receiving, processing,
and transmitting information through electrical and chemical
signals.
-Contains a cell body, dendrites and an axon
How does a axon become myelinated in the PNS? .....Answer.....-
Schwann cells wrap their membranes tightly around the axon,
forming a myelin sheath.
Describe the types of neurons based on structural characteristics
.....Answer.....-Multipolar-many dendrites, 1 axon (many
processes)
-Bipolar- 1 dendrite, 1 axon (two processes)
-Unipolar- Two branches that function as 1 axon
, age 4 of 83
What are the functions of sensory neurons, interneurons, and
motor neurons? .....Answer.....- Sensory neurons: (afferent
neurons)- Conduct impulses from peripheral body parts into the
brain or spinal cord
-Towards the brain and spinal cord
-Interneuron: Multipolar; relay information from one part of the
brain or spinal cord to another
-Motor neurons: Multipolar; conducts impulses out of the brain
and spinal cord to effectors
Astrocytes (CNS) .....Answer.....-Connects neurons to blood
vessels, exchanging nutrients and growth factors
-Part of the blood barrier
BIO 253 FINAL EXAM 2 STUDY GUIDE 2025/2026
COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES || 100% GUARANTEED
PASS <RECENT VERSION>
Parietal Lobes .....Answer.....sensory areas provide sensation of
temperature, touch, pressure, and pain involving skin. association
areas function in understanding speech and in using words to
express thought and feelings
Temporal Lobes .....Answer.....sensory area are responsible for
hearing. association areas interpret sensory experiences and
remember visual scenes, music, and other complex sensory
patterns
,age 2 of 83
Occipital Lobes .....Answer.....sensory areas are responsible for
vision. associated areas combine visual images with other sensor
experiences
What are the two cell types in neural tissue? .....Answer.....1.)
Neuron
2.) Neuroglia
What are the two groups of nervous system organs?
.....Answer.....1.) Central Nervous system
2.) Peripheral Nervous system
What are the general functions of the nervous system?
.....Answer.....-The nervous system can process a wide variety of
information from the external environment, including sight ,
sounds, and touch on the surface of the skin.
,age 3 of 83
What is a neuron? .....Answer.....-A nerve cell, the fundamental
unit of the nervous system, responsible for receiving, processing,
and transmitting information through electrical and chemical
signals.
-Contains a cell body, dendrites and an axon
How does a axon become myelinated in the PNS? .....Answer.....-
Schwann cells wrap their membranes tightly around the axon,
forming a myelin sheath.
Describe the types of neurons based on structural characteristics
.....Answer.....-Multipolar-many dendrites, 1 axon (many
processes)
-Bipolar- 1 dendrite, 1 axon (two processes)
-Unipolar- Two branches that function as 1 axon
, age 4 of 83
What are the functions of sensory neurons, interneurons, and
motor neurons? .....Answer.....- Sensory neurons: (afferent
neurons)- Conduct impulses from peripheral body parts into the
brain or spinal cord
-Towards the brain and spinal cord
-Interneuron: Multipolar; relay information from one part of the
brain or spinal cord to another
-Motor neurons: Multipolar; conducts impulses out of the brain
and spinal cord to effectors
Astrocytes (CNS) .....Answer.....-Connects neurons to blood
vessels, exchanging nutrients and growth factors
-Part of the blood barrier
