Exam 4 Flashcards
What is the perineurium and what does it cover?
The perineurium is a
protective sheath that surrounds a nerve fascicle
What is the arbor vitae and where is it located?
The arbor vitae /ˌɑːrbɔːr ˈvaɪtiː/
(Latin for “tree of life”) is the cerebellar white matter. White matter refers to
areas of the central nervous system (CNS) that are mainly made up of
myelinated axons, also called tracts
What is a spinal tap? What is the fluid that is removed?? Where is this fluid
located?
A spinal tap, also called a lumbar puncture, is a medical
procedure where a small amount of cerebrospinal fluid (CSF) is
extracted from the space surrounding the brain and spinal cord
Cerebrospinal fluid
The space between the meninges (membranes covering the brain and spinal
cord), called the subarachnoid space
What is the corpora quadrigemina and where is it located?
The corpora
quadrigemina is a structure in the midbrain of the brain, consisting of
four rounded bumps called colliculi (two superior and two inferior),
which act as reflex centers for vision and hearing
The action of swatting a pesky mosquito is a muscle contraction. What kinds of
neurons send the message from where to where?
idk
What are the two widest areas of the spinal cord?
The two widest areas of the
spinal cord are the cervical enlargement (neck region) and the lumbar
enlargement (lower back region).
Where are the cardiovascular center and the respiratory center located?
The cardiovascular center and the respiratory center are both located in the
medulla oblongata, which is a part of the brainstem at the base of the
brain; this region controls vital functions like heart rate, blood pressure,
and breathing.
When a mosquito bites you, how do you know? What neurons send the signal?
Where and how is the signal sent?
When a mosquito bites you, sensory
neurons in your skin detect the piercing sensation and send signals
along nerve fibers to your spinal cord
