Exam 4

Know the parts and general functions of the nervous system

• Sensory input- afferent, information sent to the CNS from inside and outside of the body

• Motor output- efferent, responds to stimuli from CNS to responsive effecter organs

• Integration- processing and interoperation of sensory input, occurs in the CNS

• Forman magnum

What's the difference between the CNS and PNS?

• The CNS is responsible for movement while the PNS handles emotions.
• The CNS connects the body to the brain while the PNS processes sensory information.
• The CNS processes information while the PNS connects the CNS to the rest of the body.
• The CNS and PNS are identical in function and structure.

Know the types of cells Neuron and Neuogilia and know the functions of these cells?

• Neurons produce hormones; neuroglia generate electrical impulses.
• Neurons store nutrients; neuroglia facilitate digestion.
• Neurons are responsible for muscle contraction; neuroglia regulate blood flow.
• Neurons conduct eletrical impulses

  Neurogilia supporting cells

Tags

NGSS.HS-LS1-4

Blood to brain barrier and most numerous is the?

(a)  

Form myelin sheath around axon in the CNS are?

(a)  

Clean up debris from dead or damaged neurons

(a)  

Line hollow parts in the brain and spinal cord these cells also help form cerebrospinal fluid

(a)  

Form myelin sheath around axons in the PNS it protects and insulates and also helps speed up action potential

(a)  

Surrounds cell bodies in the PNS

(a)  

Remember which Gilial cells are specific to the PNS

• Schwann and astrocyte

• Microglial cells and oligodendrocytes

• Schwann cells and satellite cells

• Astrocytes and oligodendrocytes