BIO 264 EXAM 3 REVIEW QUESTION SET
WITH ACCURATE ANSWERS
◉ (T/F)Fast twitch fibers have the greatest resistance to fatigue.
Answer: False
◉ (T/F)Type I skeletal muscle fibers have a high amount of
Mitochondria
Answer: True
◉ Creatine kinase does what?
Answer: Catalyzes the transfer of phosphate from CP to ADP.
◉ What event occurs during the lag (latent) phase of muscle
contraction?
Answer: Ca2+ binding to troponin
◉ How are neurons classified?
Answer: structural and/or functional
◉ ONE short process that branches off soma and then branches to
1 dendrite, 1 axon extending in opposite directions-found in
afferent PNS
Answer: Structural classification - unipolar neuron
,◉ Name all the Glial Cells in the CNS.
Answer: Astrocyte, Oligodentrocyte, epindymal, microglia
◉ *found in CNS*
"secretary" of Glial cells (think Astro or star of the show)
*connects blood vessels and neurons
*controls EC environment in CNS
*impacts glycogen storage, K+ permeability, gap junctions,
neurotransmitters, growth factors, and blood flow.
*acts as blood/brain barrier
Answer: Astrocyte
◉ responsible for myelin in CNS
Creates 15-30 sheathes - long processes that wrap multiples times
tightly around axon
*pH regulation in CNS
*Damaged by Multiple Sclerosis
<think of all these Os as myelin>
Answer: Oligodentrocyte
◉ *Lines CNS cavities
*produces Cerebral spinal fluid
*circulates CSF with cilia
, <think epidural goes in spine>
Answer: Ependymal
◉ Phagocytose debris in CNS
*responds to injury
*provides immune support
Answer: Microglial
◉ Name all the cells in the PNS
Answer: Schwann, Satellite
◉ Has single long process that wraps around axon to create
myelin(similar to Oligodentrocytes)
Answer: Schwann Cell
◉ regulates EC chemical environment around neurons
*sensitive to injury and inflammation(similar to astrocyte)
Answer: Satellite Cell
◉ Name this division of the Nervous System:
gastrointestinal - contains both sympathetic and parasympathetic
Answer: enteric system
◉ Name this division of the Nervous System:
WITH ACCURATE ANSWERS
◉ (T/F)Fast twitch fibers have the greatest resistance to fatigue.
Answer: False
◉ (T/F)Type I skeletal muscle fibers have a high amount of
Mitochondria
Answer: True
◉ Creatine kinase does what?
Answer: Catalyzes the transfer of phosphate from CP to ADP.
◉ What event occurs during the lag (latent) phase of muscle
contraction?
Answer: Ca2+ binding to troponin
◉ How are neurons classified?
Answer: structural and/or functional
◉ ONE short process that branches off soma and then branches to
1 dendrite, 1 axon extending in opposite directions-found in
afferent PNS
Answer: Structural classification - unipolar neuron
,◉ Name all the Glial Cells in the CNS.
Answer: Astrocyte, Oligodentrocyte, epindymal, microglia
◉ *found in CNS*
"secretary" of Glial cells (think Astro or star of the show)
*connects blood vessels and neurons
*controls EC environment in CNS
*impacts glycogen storage, K+ permeability, gap junctions,
neurotransmitters, growth factors, and blood flow.
*acts as blood/brain barrier
Answer: Astrocyte
◉ responsible for myelin in CNS
Creates 15-30 sheathes - long processes that wrap multiples times
tightly around axon
*pH regulation in CNS
*Damaged by Multiple Sclerosis
<think of all these Os as myelin>
Answer: Oligodentrocyte
◉ *Lines CNS cavities
*produces Cerebral spinal fluid
*circulates CSF with cilia
, <think epidural goes in spine>
Answer: Ependymal
◉ Phagocytose debris in CNS
*responds to injury
*provides immune support
Answer: Microglial
◉ Name all the cells in the PNS
Answer: Schwann, Satellite
◉ Has single long process that wraps around axon to create
myelin(similar to Oligodentrocytes)
Answer: Schwann Cell
◉ regulates EC chemical environment around neurons
*sensitive to injury and inflammation(similar to astrocyte)
Answer: Satellite Cell
◉ Name this division of the Nervous System:
gastrointestinal - contains both sympathetic and parasympathetic
Answer: enteric system
◉ Name this division of the Nervous System:
