Nervous System and Nervous Tissue Flashcards
Myelin sheath gaps (nodes of Ranvier) are found _______.
on myelinated axons
Which class of neuron is rare in the human body and found in some special sensory organs?
Bipolar
All of the following are found in the PNS EXCEPT ________.
microglia
Myelin sheaths in the CNS are produced by the ________.
oligodendrocytes
Neuroglial cells that line the ventricles of the brain are the ______.
ependymal cells
Nociceptors respond to what type of stimulus?
Touch
Sound
Vibration
Pain
Receptors sensitive to stimuli arising outside the body are classified as ________.
exteroceptors
Nerves that only carry information to the CNS are classified as ________.
afferent
A group of neuron cell bodies in the PNS is a ________.
ganglion
Nerves that innervate our upper limbs arise from the _________.
brachial plexus
Parts of this cranial nerve are numbed during dental work.
Trigeminal (V)
Partial paralysis of facial muscles could be due to a problem with which cranial nerve?
Facial (VII)
The area of skin innervated by a single spinal nerve is called a(n) __________.
dermatome
Our “funny bone” is actually this nerve.
Ulnar
The central sulcus divides which two lobes of the cerebrum?
Frontal and parietal