BIOL 235 ACTUAL EXAM SCRIPT 2026
QUESTIONS AND SOLUTIONS GRADED
A+.
◍ What do you call a small mass of nervous tissue that is made up
primarily of neuron cell bodies? Ans: Ganglia
◍ The somatic nervous system only sends impulses to ________
muscles. Ans: skeletal
◍ Fight or Flight is associated with which division of the autonomic
nervous system? Ans: Sympathetic
◍ What is the ability to respond to a stimulus and convert it into an
action potential? Ans: electrical excitability
◍ What type of neurons usually have several dendrite and on axon , and
are norm ally found in brain and spinal cord as well as motor neurons?
Ans: Multipolar
◍ What type of neurons have one main dendrite and one axon as well as
are primarily found in the retina of the eye, inner ear, and the olfactory
area of brain? Ans: Bipolar
,◍ What type of neurons has dendrites and one axon that are fused
together to form a continuous process that emerges from the cell body?
Ans: Unipolar or Pseudounipolar
◍ The processes of ________ make contact with blood capillaries,
neurons, and the pia mater. Ans: astrocytes
◍ What neuroglia has these functions?
1. contain microfilaments that give them strength and allow them to
support neurons
2. contributes to the effectiveness of BBB
3.in embyro, they secret chemicals that regulate things
4. help maintain an appropriate chemical environment for nerve impulse
generation
5. play a role in hearing and memory. Ans: Astrocytes
◍ What neuroglia resemble astrocytes but are smaller and contain fewer
processes as well as are responsible fro forming nd maintiang myelin
sheath? Ans: Oligodendrocytes
◍ What neuroglia are small cells with slender processes that give them a
spine like projections as well as act as phagocytes? Ans: Microglial
Cells
, ◍ What type of neurglia cells are cuboidal and columanr arranged in a
single layer that possess microvilli and cilia? they produce and possibly
monitor and assist in the circulation of CSF. Ans: Ependymal Cells
◍ What are the 2 types of neuroglia in the PNS? Ans: Schwann and
satellite cells
◍ What type of motor neuron directly supplies skeletal muscle fibers?
Ans: lower motor neurons
◍ What do all of these factors contribute to?
1. unequal distribution of ions in the ECF and cytosol
2. inability of most anions to leave the cells
3. electrogenic nature of the sodium potassium ATPases. Ans: Resting
membrane potential
◍ Hyperpolarized cells are _______ negative inside ? Ans: More
◍ What mode of travel by which graded potentials die out as they
spread along the membrane ? Ans: decremental conduction
QUESTIONS AND SOLUTIONS GRADED
A+.
◍ What do you call a small mass of nervous tissue that is made up
primarily of neuron cell bodies? Ans: Ganglia
◍ The somatic nervous system only sends impulses to ________
muscles. Ans: skeletal
◍ Fight or Flight is associated with which division of the autonomic
nervous system? Ans: Sympathetic
◍ What is the ability to respond to a stimulus and convert it into an
action potential? Ans: electrical excitability
◍ What type of neurons usually have several dendrite and on axon , and
are norm ally found in brain and spinal cord as well as motor neurons?
Ans: Multipolar
◍ What type of neurons have one main dendrite and one axon as well as
are primarily found in the retina of the eye, inner ear, and the olfactory
area of brain? Ans: Bipolar
,◍ What type of neurons has dendrites and one axon that are fused
together to form a continuous process that emerges from the cell body?
Ans: Unipolar or Pseudounipolar
◍ The processes of ________ make contact with blood capillaries,
neurons, and the pia mater. Ans: astrocytes
◍ What neuroglia has these functions?
1. contain microfilaments that give them strength and allow them to
support neurons
2. contributes to the effectiveness of BBB
3.in embyro, they secret chemicals that regulate things
4. help maintain an appropriate chemical environment for nerve impulse
generation
5. play a role in hearing and memory. Ans: Astrocytes
◍ What neuroglia resemble astrocytes but are smaller and contain fewer
processes as well as are responsible fro forming nd maintiang myelin
sheath? Ans: Oligodendrocytes
◍ What neuroglia are small cells with slender processes that give them a
spine like projections as well as act as phagocytes? Ans: Microglial
Cells
, ◍ What type of neurglia cells are cuboidal and columanr arranged in a
single layer that possess microvilli and cilia? they produce and possibly
monitor and assist in the circulation of CSF. Ans: Ependymal Cells
◍ What are the 2 types of neuroglia in the PNS? Ans: Schwann and
satellite cells
◍ What type of motor neuron directly supplies skeletal muscle fibers?
Ans: lower motor neurons
◍ What do all of these factors contribute to?
1. unequal distribution of ions in the ECF and cytosol
2. inability of most anions to leave the cells
3. electrogenic nature of the sodium potassium ATPases. Ans: Resting
membrane potential
◍ Hyperpolarized cells are _______ negative inside ? Ans: More
◍ What mode of travel by which graded potentials die out as they
spread along the membrane ? Ans: decremental conduction
