Exam (elaborations)
BLG 101 12 & 13 Exam questions with answers
- Course
- Institution
BLG 101 12 & 13 Exam
[Show more]
Seller
Follow
DESTINYGRACE
Content preview
BLG 101 (lec 12 & 13)Adult brains have 4 regions: - answer1. Cerebral hemispheres
2. Diencephalon
3. Brain stem
- midbrain
- pons
- medulla
4. Cerebellum
Gray matter - answerShort, nonmyelinated neurons and cell bodies (outside layer of
brain)
- enters or exits
White matter - answerMyelinated and nonmyelinated axons
- carries to or from
Sensory - answerInfo coming from body
Motor - answerBrain to muscle
Ventricles - answerFluid filled chambers that are continuous to one anther and to central
canal of spinal cord
1. Filled with cerebrospinal fluid
- flush our neurotransmitters (aids with infections & neurotranmitter metabolism)
2. Lined by Ependymal cells (neuroglial cells)
Cerebral hemisphere - answerCreates lots of surface area
Gyri: ridges
Sulci: shallow grooves
Fissures: deep grooves
- longitudinal tissues (separates 2 hemispheres)
- transverse cerebral fissure (separates cerebrum and cerebellum)
5 lobes - answer- frontal
- parietal
, - temporal
- occipital
- insula
Major sulci that divide lobes - answer- central sulcus separates pre central gurus of
frontal lobe and post central gurus of parietal lobe
- parietal- occipital sulcus separates occipital and parietal lobes
- lateral sulcus outline temporal lobes
Each hemisphere has 3 basic regions - answer- cerebral cortex of grey matter
superficially
- white matter internally
- basal nuclei deep within white matter
Cerebral cortex - answerSite of conscious mind: awareness, sensory perception,
voluntary motor initiation, communication, memory storage, understating
3 functional areas of cerebral cortex - answer- motor areas: control voluntary movement
- sensory areas: conscious awareness of sensation
- association areas: integrate diverse information (engage w/ other areas)
Motor areas (LEFT) - answer- primary motor cortex
- premotor cortex
- frontal eye field
- boras area
Located in per central gurus of frontal lobe
- lots of motor units in face
- not much in legs
Sensory areas (RIGHT) - answer- somatic sensation
- taste
- equilibrium
- vision
- hearing
Located in post central gyrus
- lots of sensory neurons in hands
Cerebral cortex (primary motor cortex) - answer- premotor cortex (helps plan
movements, learning)
- Broca's area (speech production)
- Frontal eye field (eye movements)
- sensory areas
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 EFT, 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 this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller DESTINYGRACE. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R260,27. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83637 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 14 years now
Recently viewed by you
