general quiz Flashcards
weeks 1-11
what has the largest brain in proportion to its body size?
shrew
what is not part of the PNS?
spinal cord
What kind of information is transmitted by axons located in the dorsal root of the spinal cord?
somatosensory
Which of the following is not a division of the autonomic nervous system?
the somatic nervous system
The structure that serves as a protective filter to regulate entry of chemicals into the brain is known as what?
the Blood Brain Barrier (BBB)
Where are action potentials generated?
the axon hillock
Alteration of the post-synaptic membrane potential can cause which of following?
stabilisation, hyperpolarisation, depolarisation
what is not a way in which drugs can alter the lifecycle of a neurotransmitter?
by altering where neurostransmitters are synthesised
What is the name of the process by which the effects of a drug decrease with multiple exposures?
tolerance
Over 50% of the brains neurons are contained within which part of the brain?
cerebellum
what is the cerebrum divided into?
2 symmetrical parts of the body
which oart of the body does the right hemisphere control?
the left
whihc side of the body does the left hemisphere control?
the right
Where is the primary somatosensory cortex located?
the parietal lobe
what is not a common symptom of huntington’s disease?
intention tremors
what is not an example of a reflex?
secretion of sweat
Which structures are found in the inner ear?
ulticle, Saccule, Cochlea
Which dimension of the sound wave affects its loudness?
amplitude
Which area of the brain is responsible for speech production
broca’s area
Which of the following convert light energy into neaural activty?
photoreceptors
how is visual informaiton is transmitted from the eye to the visual cortex ?
each hemisphere recieves information from both eyes
What is not found in the brain?
nerves
A scientist is dissecting the brain. The brain has a brainstem and cerebellum, but no neocortex. What animal might the brain belong to?
octopus
which layer of the lateral geniculate nucleus creates the perception of blue?
Koniocellular
What would not result from damage to the dorsal pathway?
prosopagnoisa
What was not shown by Phineas gage after his accident?
aggression
complete the sentence: synaptic strength is defined by the size of the ____.
Post-synaptic potential
How can a cerebrospinal fluid leak be treated?
both a blood patch and repair with abdominal fat are options
How many pairs of nerves are there in the human body
43
What is an important determinant of the speed of action potential propagation?
the diameter of the axon
The BBB (blood brain barrier) is made up of what type of cells?
endothelial cells
complete the sentence: cerebrospinal fluid is produced from the ____ of the brain.
choroid plexus
