BIO 210 COMPREHENSIVE QUESTIONS AND
ANSWERS SURE A+
✔✔Schwann cells (PNS) - ✔✔make the myelin sheath
✔✔Factors the increase nerve conduction - ✔✔Myelin Sheath increase the velocity of
an action potential
Diameter of the axon - bigger is faster
Temperature - hotter is faster
✔✔Action Potential - ✔✔Graded potential is below threshold
When NA+ enters cell - depolarization occurs
When K+ exits teh cell repolarization occurs
K+ continues to exit the cell and it becomes hyperpolarized
Sodium potasium pump brings it back to RMP. It is an active transport process because
it requires ATP to function.
✔✔Cerebrum - ✔✔2 cerebral hemispheres and 2 lateral ventricles
✔✔Diancephalon - ✔✔thalamus, hypothalamus and epithalamus and 3rd ventricle
✔✔Brain Stem - ✔✔midbrain (cerebral aqueduct), pons and medulla oblongota (both
are associated with teh 4th ventricle
✔✔Cerebellum - ✔✔4th ventricle
✔✔medulla oblongata - ✔✔vital reflex center - heart rate, respiration - a back up for the
hypothalamus which is the autonomic nervous system control center.
✔✔Meninges - ✔✔Dura Mater, Arachnoid Mater, Pia Mater
✔✔Blood Brain Barrier - ✔✔semi-permeable membrane - alcohol and some lipid
solubles go through it. Tight junctions - hard to permeate
, ✔✔Cerebrospinal Fluid - ✔✔Chroroid Plexuses hang from the roofs of the ventricles to
produce it.
✔✔Functions of CSF - ✔✔Bouyancy - forms a liquid cushion
nourishes the brain and spinal cord
✔✔Location of CSF - ✔✔Ventricles
central canal of the spinal cord
subarachnoid space of the brain and spinal cord
✔✔Photoreceptors - ✔✔respond to light
✔✔thermoreceptors - ✔✔respond to temp
✔✔chemoreceptors - ✔✔respond to blood pressure
✔✔Reflex Arc Pathway - ✔✔1. receptor - site of stimulus
2. sensory neuron - afferent dorsal root
integration center - brain and interneurons in the spinal cord
3. integration center
4. Motor Neuron
5. Effector - Muscle or Gland
✔✔Cranial and Spinal nerves - ✔✔7, 9, 10 Taste food going in
VII - facial nerve
IX - glossopharangeal nerve
X - vagus nerve - motor and sensory - taste; ANS to cardiac and digestive organs and
glands of the ventral body cavity
✔✔Cranial and Spinal nerves - ✔✔3, 4, and 6 make eyes do tricks
III - Oculomotor
IV - Trochlear
VI - Abducens
✔✔Major spinal nerves associated with nerve plexuses - ✔✔Phrenic - diaphragm
Radial - arm
femoral - abdominal wall and thigh
Sciatic - gluteal region and lower leg
✔✔2 divisions of the ANS - ✔✔Somatic - Skeletal Muscle
ANS - smooth muscle, cardiac muscle, and glands
2 regions of ANS - parasympathetic nervous system and sympathetic nervous system
✔✔Parasympathetic Nervous System - ✔✔Rest and Digest
ANSWERS SURE A+
✔✔Schwann cells (PNS) - ✔✔make the myelin sheath
✔✔Factors the increase nerve conduction - ✔✔Myelin Sheath increase the velocity of
an action potential
Diameter of the axon - bigger is faster
Temperature - hotter is faster
✔✔Action Potential - ✔✔Graded potential is below threshold
When NA+ enters cell - depolarization occurs
When K+ exits teh cell repolarization occurs
K+ continues to exit the cell and it becomes hyperpolarized
Sodium potasium pump brings it back to RMP. It is an active transport process because
it requires ATP to function.
✔✔Cerebrum - ✔✔2 cerebral hemispheres and 2 lateral ventricles
✔✔Diancephalon - ✔✔thalamus, hypothalamus and epithalamus and 3rd ventricle
✔✔Brain Stem - ✔✔midbrain (cerebral aqueduct), pons and medulla oblongota (both
are associated with teh 4th ventricle
✔✔Cerebellum - ✔✔4th ventricle
✔✔medulla oblongata - ✔✔vital reflex center - heart rate, respiration - a back up for the
hypothalamus which is the autonomic nervous system control center.
✔✔Meninges - ✔✔Dura Mater, Arachnoid Mater, Pia Mater
✔✔Blood Brain Barrier - ✔✔semi-permeable membrane - alcohol and some lipid
solubles go through it. Tight junctions - hard to permeate
, ✔✔Cerebrospinal Fluid - ✔✔Chroroid Plexuses hang from the roofs of the ventricles to
produce it.
✔✔Functions of CSF - ✔✔Bouyancy - forms a liquid cushion
nourishes the brain and spinal cord
✔✔Location of CSF - ✔✔Ventricles
central canal of the spinal cord
subarachnoid space of the brain and spinal cord
✔✔Photoreceptors - ✔✔respond to light
✔✔thermoreceptors - ✔✔respond to temp
✔✔chemoreceptors - ✔✔respond to blood pressure
✔✔Reflex Arc Pathway - ✔✔1. receptor - site of stimulus
2. sensory neuron - afferent dorsal root
integration center - brain and interneurons in the spinal cord
3. integration center
4. Motor Neuron
5. Effector - Muscle or Gland
✔✔Cranial and Spinal nerves - ✔✔7, 9, 10 Taste food going in
VII - facial nerve
IX - glossopharangeal nerve
X - vagus nerve - motor and sensory - taste; ANS to cardiac and digestive organs and
glands of the ventral body cavity
✔✔Cranial and Spinal nerves - ✔✔3, 4, and 6 make eyes do tricks
III - Oculomotor
IV - Trochlear
VI - Abducens
✔✔Major spinal nerves associated with nerve plexuses - ✔✔Phrenic - diaphragm
Radial - arm
femoral - abdominal wall and thigh
Sciatic - gluteal region and lower leg
✔✔2 divisions of the ANS - ✔✔Somatic - Skeletal Muscle
ANS - smooth muscle, cardiac muscle, and glands
2 regions of ANS - parasympathetic nervous system and sympathetic nervous system
✔✔Parasympathetic Nervous System - ✔✔Rest and Digest
