Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Week 19: Neuroscience > 19.1 NS: General structure of the NS > Flashcards

19.1 NS: General structure of the NS Flashcards

1
Q

What does a diffusion weighted MRI of the brain show?

A

White matter tracts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where does the brain have a major kink?

A

Between the midbrain and diencephalon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the ridges and grooves of the cerebrum called?

A

Gyri and sulci

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Name the 4 lobes of the cerebral cortex

A

Frontal, parietal, occipital, temporal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What does the cerebellum do? How many neurons does it contain?

A

Refines execution of motor function

Half of all neurons in brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What part of the brain are the basal ganglia in?

What is it important for?

A

Telencephalon

Selection and initiation of voluntary movement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the components of the basal ganglia?

A

Caudate
Putamen
Globus pallidus

(Subthalamic nucleus, substantia nigra, caudate + putamen=striatum)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What part of the brain is the thalamus in?

What does it do?

A

Part of dencephalon

Major sensory relay to the cortex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the 3 ways the thalamic nuclei project in?

A

Relay sensory info to specific cortical areas

Relay non sensory info from cortex/BG to specific cortical areas

Global projection to cortex for arousal/sleep

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What 2 major roles does the hypothalamus have?

A

Regulation of homeostasis and control of pituitary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What does the brainstem control? (4)

A

Facial muscles
Face/head sensation
Cardioresp
Arousal/sleep-wake cycle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Where in the brain does the spinal cord connect to?

A

The medulla

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the composition of the spinal cord?

A

Core of grey matter surrounded by white matter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Where is the spinal cord enlarged?

Where does it end?

A

At lower cervical and lumbar region (for limbs)

L1/L2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What types of axons are dorsal and ventral roots for?

A

Dorsal:sensory

Ventral: ventral horn motor axons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What does the dorsal root contain and what does this form?

A

Contains neuronal somata forming a dorsal root ganglion

17
Q

Where do the branches of the DRG neurons go?

A

One in peripheral nerve (stimuli detection)

One enters dorsal horn via dorsal root

18
Q

What is the definition of a dermatome?

A

The region of the body innervated by a bilateral pair of DRG

19
Q

What makes CSF? Where does it flow out? What space does it fill? Where does it get reabsorbed?

A

Choroid plexus makes CSF, flows out at fourth ventricle

Fills subarachnoid space, reabsorbed by veins at arachnoid granulations

20
Q

What divides the cerebral hemispheres? What separates the cerebellum from the occipital lobe?

A

Falx divides

Tentorium separates C from OL

21
Q

What is the BBB formed by?

What type of transport is needed to get through BBB?

A

Tight junctions of endothelial cells (of capillaries)

Active transport

Week 19: Neuroscience (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions