Ephe 141 lab 6 questions well answered
graded A+
Basic nervous system pathway: - correct answer✔✔ Sensation of change in
environment -> sensory information -> Central nervous system processing ->
motor information out -> respond in a gland, muscle or tissue
Central nervous system consists of - correct answer✔✔ Brain and spinal cord
Peripheral nervous system consists of - correct answer✔✔ All the neural tissue
found outside the cns
Peripheral nervous system: afferent division - correct answer✔✔ - somatic
sensory receptors (ex heat receptors)
- visceral sensory receptors (ex stretch receptors in stomach)
- spinal sensory receptors (ex in retina of eye sight)
Peripheral nervous system: efferent division - correct answer✔✔ - somatic
nervous system: somatic effectors (skeletal muscles)
- autonomic nervous system: visceral effectors (smooth muscle, cardiac muscle,
and glands)
, Two main types of nervous cells: - correct answer✔✔ Neurons
Neuroglia
Two types of glial cells in the CNS - correct answer✔✔ Astrocytes
Oligodendrocytes
Astrocytes function - correct answer✔✔ - maintain blood brain barrier
- provide structural support
- regulate ion, nutrient, and dissolved-gas concentrations
- absorb and recycle neurotransmitters
- form scar tissue after injury
Oligodendrocytes function - correct answer✔✔ - myelinate CNS axons
- provide structural framework
Two types of glial cells in the PNS - correct answer✔✔ - Schwann cells
graded A+
Basic nervous system pathway: - correct answer✔✔ Sensation of change in
environment -> sensory information -> Central nervous system processing ->
motor information out -> respond in a gland, muscle or tissue
Central nervous system consists of - correct answer✔✔ Brain and spinal cord
Peripheral nervous system consists of - correct answer✔✔ All the neural tissue
found outside the cns
Peripheral nervous system: afferent division - correct answer✔✔ - somatic
sensory receptors (ex heat receptors)
- visceral sensory receptors (ex stretch receptors in stomach)
- spinal sensory receptors (ex in retina of eye sight)
Peripheral nervous system: efferent division - correct answer✔✔ - somatic
nervous system: somatic effectors (skeletal muscles)
- autonomic nervous system: visceral effectors (smooth muscle, cardiac muscle,
and glands)
, Two main types of nervous cells: - correct answer✔✔ Neurons
Neuroglia
Two types of glial cells in the CNS - correct answer✔✔ Astrocytes
Oligodendrocytes
Astrocytes function - correct answer✔✔ - maintain blood brain barrier
- provide structural support
- regulate ion, nutrient, and dissolved-gas concentrations
- absorb and recycle neurotransmitters
- form scar tissue after injury
Oligodendrocytes function - correct answer✔✔ - myelinate CNS axons
- provide structural framework
Two types of glial cells in the PNS - correct answer✔✔ - Schwann cells
