CNS
Which of the following make up the CNS?
A) Brain and spinal cord
B) Nerves and ganglia
A) Brain and the spinal cord
Which of the following make up the PNS?
A) Nerves and ganglia
B) Brain and spinal cord
A) Nerves and ganglia
What is the executive site of the brain?
Cerebral cortex
What fluid in the brain provides cushioning and protection?
CSF
Which describes a multipolar nerve?
A) One axon, many dendrites
B) One axon, one dendrite
C) Only dendrites, no axon present
A) One axon, many dendrites
Which is a glial cell found in the CNS?
A) Satellite cells
B) Neurolemmocytes (Schwanncells)
C) Astrocytes
C) Astrocytes
What is another name for sensory and another name for motor?
Afferent (sensory) and efferent (motor)
Which of the following are true?
A) Sulci are grooves, while gyri are ridges.
B) Sulci are ridges, and gryi are grooves.
A) Sulci are grooves, while gyri are ridges.
Controls voluntary eye movements:
A) Olfactory cortex
B) Broca’s area
C) Frontal eye field
C) Frontal eye field
How many pairs of nerves are there for the brain?
12
White matter contains:
A) myelinated sheaths
B) nonmyelinated sheaths
A) myelinated sheaths
What are the two branches of the motor (efferent) division of the PNS?
A) Somatic and autonomic
B) Parasympathetic and sympathetic
A) Somatic and autonomic
What parts of the brain are grey matter?
A) Cerebral cortex and nuclei
B) Corpus callosum and internal capsule
A) cerebral cortex and nuclei
What is the function of the parietal lobe?
Somatosensory cortex (touch, pain, temperature, and proprioception)
What nerve supports the retina?
Optic
Oculomotor
Facial
Optic nerve
What neurons shuttle signals throughout the CNS?
Interneurons
Which cells produce the myelin sheath in the PNS?
Neurolemmocytes (Schwann cells)
What is the correct order of cranial meninges (from most internal to external)?
A) arachnoid mater, pia mater, dura materB) pia mater, arachnoid mater, dura mater
B) pia mater, arachnoid mater, dura mater
What is the function of the Wernick’s area?
A) Provides emotional impact to memories
B) Language comprehension
B) language comprehension
Depolarization is:
A) The return to negative potential as
K+ exits through voltage-gated K+ channels
B) The gain of positive charge as Na+
enters through voltage-gated Na+ channels
B) The gain of positive charge as Na+
enters through voltage-gated Na+ channels
What is the function of oligodendrocytes?
They form the myelin sheath for the CNS.
Increases digestion and constricts pupils:
A) Parasympathetic
B) Sympathetic
A) parasympathetic division
What is the function of the corpus callosum?
Provides communication between the cerebral hemispheres.
What are the structures of the diencephalon?
Thalamus, hypothalamus, and the epithalamus
A) Na+ secretion
B) K+ diffusion
B) K+ diffusion