Neuroscience EXAM 1– USA (Latest 2026/2027 Update) Exam Prep with Questions and Verified Answers| 100% Correct| Grade A

Neuroscience EXAM 1– USA (Latest 2026/2027 Update) Exam Prep with Questions and Verified Answers| 100% Correct| Grade A

Neuroscience EXAM 1– USA (Latest 2026/

2026 Update) Exam Prep with Questions and

Verified Answers| 100% Correct| Grade A

Q: sulcus limitans

Answer:

works to divide dorsal from ventral tube

Q: defects during migration stage of development

Answer:

dyslexia, lissencephaly (smooth brain)

Q: cranial nerve development

Answer:

1st: swallow & gag (14 weeks)-->V, VII, IX, X, XII

2nd: visual motor (25 weeks)-->II, III, IV, VI

3rd: hearing (28 weeks)-->VIII

4th: olfaction (31-32 weeks)-->I

Q: growth of brain due to:

Answer:

myelination, pathways/communication between axons and dendrites, vascularization

Q: CSF from:

Answer:

choroid plexus: vascular tufts within ventricles

Q: CSF circulation:

Answer:

lateral ventricles-->third ventricle-->leaves ventricular system via foramina in fourth ventricle--

>to outside surface of brain and spinal cord-->ultimately reabsorbed into venous system

Q: meninges

Answer:

membranous protective layers covering CNS;

PAD (inside-->out): pia mater, arachnoid mater, dura mater

Q: orientation above midbrain:

Answer:

anterior=rostral

posterior=caudal

superior=dorsal

inferior=ventral

Q: orientation at midbrain and below:

Answer:

anterior=ventral

posterior=dorsal

superior=rostral

inferior=caudal

Q: orientation changes when:

Answer:

midbrain bends at diencephalon junction

Q: midbrain is ? to pons

Answer:

rostral

Q: thalamus is ? to frontal lobe

Answer:

caudal

Q: cingulate gyrus is ? to septum pellucidum

Answer:

dorsal

Q: calcarine fissure is ? to medulla

Answer:

posterior

Q: neurons

Answer:

nerve cells; compose nervous system with glial cells

cell body-->nucleus; dendrites-->short processes receive inputs to cell; axon-->carries outputs

Q: glia

Answer:

support cells; compose nervous system with neurons

Q: multipolar neurons

Answer:

having several dendrites and axons; most common

Q: bipolar neurons

Answer:

single dendrite and axon; often sensory

Q: unipolar neurons

Answer:

both axon and dendrite form a single process coming off cell body

Q: synapses

Answer:

communication between neurons; presynaptic-->synaptic vesicles; postsynaptic--

>neurotransmitter receptor