Exam (elaborations)
biol 373 midterm 1 questions & answers rated A+
- Course
- Institution
biol 373 midterm 1 questions & answers rated A+
[Show more]
Content preview
biol 373 midterm 1neural plate develops into: - correct answer ✔✔- neural tube (precursor to CNS)
at 4 weeks of gestation - correct answer ✔✔- division of brain mater into fore, mid, hindbrain and spinal
cord
at6 weeks of gestation - correct answer ✔✔- hindbrain divides int medulla, cerebellum and pons
- forebrain divides into diencephalon and cerebrum
at 11 weeks of gestation - correct answer ✔✔- rapid growth of cerebrum
function of the spinal cord - correct answer ✔✔- protection and support o CNS
cranial meninges - correct answer ✔✔- dura mater
- arachnoid mater
- pia mater
what is contained with in the dura mater - correct answer ✔✔- dural (venous) sinus
what is contained within the subarachnoid space - correct answer ✔✔- CSF
CSF - correct answer ✔✔- low in protein, K, Ca, HCO3, glucose and pH
how often is CS replaced - correct answer ✔✔- 4 times a day
where is CSF produced - correct answer ✔✔- cored plexus (within all ventricles)
,pathway of CSF - correct answer ✔✔- ventricles
- medial and lateral apertures
- drains into the subarachnoid space
- travels through the arachnoid villi to the dural sinus to the heart
types of glial cells in CNS - correct answer ✔✔- oligodendrocytes
- microglia
- astrocytes
- ependymal cells
oligodendrocytes - correct answer ✔✔- myelin sheath
microglia - correct answer ✔✔- immune cell linkage
- scavengers
astrocytes - correct answer ✔✔- regulate local ECF by releasing chemicals
ependymal cells - correct answer ✔✔- barrier between compartments
what crosses the blood-brain barrier easily - correct answer ✔✔- lipid soluble molecules
what needs a transporter to cross the blood-brain barrier - correct answer ✔✔- hydrophilic substances
(ions, AA, proteins)
blood-brain barrier - correct answer ✔✔- O2 difusion
- high expression of glucose transporters
sympathetic pathway - correct answer ✔✔- thoracolumbar
, parasympathetic pathway - correct answer ✔✔cranial sacral
contained within the grey matter - correct answer ✔✔- somatosensory nuclei
- visceral sensory nuclei
- autonomic efferent nuclei
- somatic motor nuclei
contain within the white matter - correct answer ✔✔- DCML
- spinothalamic
- lateral and anterior corticospinal
spinal reflex - correct answer ✔✔- initiation of response without input from the brain
- interneurons will send information about the stimulus and action to the brain
brainstem - correct answer ✔✔- oldest and most primitive
- origin for cranial nerves
Midbrain - correct answer ✔✔- coordination of eye movement, visual and auditory reflexes
hindbrain - correct answer ✔✔- pons
- medulla
pons - correct answer ✔✔- relay to cerebrum and regulate breathing
medulla - correct answer ✔✔- grey matter- control of involuntary functions
- white matter- somatosensory and motor tracts
Diencephalon - correct answer ✔✔- thalamus
- hypothalamus
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller BravelRadon. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $17.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now