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This activity contains 20 questions.
Axons normally carry information _______ the nerve cell body. Dendrites carry information _______ the nerve cell body.
away from; toward
away from; away from
toward; away from
first toward and then away; toward
Besides the accessory nerve (XI), which pair of cranial nerves extends beyond the head and neck?
Facial nerves (VII)
Vagus nerves (X)
The _______ area that allows us to consciously move our skeletal muscles is anterior to the central fissure in the _______ lobe.
somatic sensory; frontal
primary motor; parietal
primary motor; temporal
primary motor; frontal lobe
somatic sensory; parietal
The _______ sensory area is located posterior to the central fissure in the _______ lobe.
voluntary motor; occipital
The cell bodies of sensory neurons whose fibers enter the cord by the dorsal root are found in the _________.
ventral root ganglion.
dorsal root ganglion.
The cells that produce myelin in the PNS are called _______ and in the CNS the cells are called _______.
Schwann cells; microglia
satellite cells; astrocytes.
Schwann cells; oligodendrocytes
astrocytes; Schwann cells
oligodendrocytes; Schwann cells
The central nervous system (CNS) consists of:
the peripheral and autonomic nervous systems.
the brain and spinal cord.
the brain and cranial nerves.
the cranial nerves and spinal nerves.
the spinal cord and spinal nerves.
The motor portions of the ANS, sympathetic and parasympathetic, are characterized by a two-neuron chain. The pre-ganglionic nerve cell body is found in the _______ and the postganglionic nerve cell body is found _______.
cerebellum; in ganglia in the PNS
central nervous system; in ganglia in the PNS
peripheral nervous system; in nuclei in the CNS
cerebral cortex; in ganglia in the PNS
spinal cord only; in ganglia in the PNS
The sensory or afferent nerve fibers carry information:
away from the CNS.
toward the CNS.
away from the CNS to the ANS.
away from the ANS.
away from the visceral nervous system.
The three connective tissue membranes covering and protecting CNS structures are collectively known as the _______. The _______ is the outermost, leathery layer.
periosteum; dura mater
meninges; dura mater
endosteum; pia mater
meninges; pia mater
What are groups of nerve cell bodies in the CNS called?
What structure detects the amount of stretch or tension in skeletal muscles, tendons, and joints?
What is the minimum number of neurons that can be involved in a reflex?
This deep groove separates the two hemispheres of the cerebrum:
Name the locations where the cerebrospinal fluid is found in the body.
ventricles and subarachnoid space
orbit and subarachnoid space
ventricles and subdural space
ventricles and pial space
lymph and the subarachnoid space
Which of the following does NOT determine the speed of nerve impulse conduction?
presence of myelin
absence of myelin
Which of the following is an example of an "all-or-none" response in the nervous system?
action potential or nerve impulse
Which of the following is NOT a central nervous system glial cell?
Which of the following is NOT TRUE about the patellar reflex?
It is also called the knee-jerk reflex.
It is never tested during a physical exam to determine the general health of the motor portion of the nervous system.
It is an example of a two-neuron reflex arc.
The quadriceps muscle tendon is stretched.
It is an example of the most simple type of reflex in humans.
This part of the CNS contains the midbrain, pons and medulla oblongata. It provides a pathway for ascending and descending tracts.
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