[Recalls] 1C Prelim

Question 1

Function of Myelin

Answer 1

Makes conduction faster

Question 2

Connection between nerve fibers

Answer 2

Synapses

Question 3

Characteristic of type C fibers

Answer 3

Unmyelinated

Question 4

Primary vesicles

Answer 4

Prosencephalon
Mesencephalon
Rhomboencephalon

Question 5

Most important cause of neural tube defect

Answer 5

Folic acid deficiency

Question 6

The nervous system arises from

Answer 6

Ectoderm

Question 7

Has a feedback mechanism on the motor function to the frontal lobe

Answer 7

Cerebellum

Question 8

Where all of the major lobes meet:

A. Thalamus
B. Fourth vesicle
C. Pituitary
D. Insular cortex

Answer 8

D. Insular cortex

Question 9

Best description of CNS:

Answer 9

Connection of glial cells are Schmidt Lanterman incisure

Question 10

Separates supratentorial and infratentorial

Answer 10

Tentorium cerebelli

Question 11

Thalamus is derived from

Answer 11

Diencephalon

Question 12

Located in the white matter

A. Fibrous astrocyte
B. Oligodendrocyte
C. Microglial cell
D. AOTA

Answer 12

D. AOTA

Question 13

Masterplan for the formation of brain

Answer 13

Genes

Question 14

Found in supratentorial area

Answer 14

Parietal lobe

Question 15

Area where upper and lower neurons meet

Answer 15

Anterior horn

Question 16

Characteristic of dendrites rather than axon

Answer 16

Contains Nissl bodies in cytoplasm

Question 17

Secretes CSF

Answer 17

Ependymal cells

Question 18

Function of temporal lobe

A. Motor function
B. Hearing
C. Balance
D. Sensory function

Answer 18

B. Hearing

Question 19

Patient with Schwannoma; how many cervical nerves

Answer 19

8

Question 20

Mesencephalon structures

A. Tectum
B. Tegmentum
C. Cerebral aqueduct
D. Cerebral peduncle
E. AOTA

Answer 20

E. AOTA

Question 21

Not expected in sample

Answer 21

Macroglial

Question 22

The anterior neuropore closes

Answer 22

Day 25

Question 23

Brainstem is derived from

Answer 23

Mesencephalon and rhomboencephalon

Question 24

Most important period for the development of CNS

Answer 24

1st month

Question 25

Function of glial cells A. Regeneration of brain B. Secretes CSF C. Provides nutrition D. AOTA

Answer 25

D. AOTA

Question 26

Not part of the PNS

Answer 26

Spinal cord

Question 27

Produces CSF

Answer 27

Choroid plexus

Question 28

Structure that secretes CSF

Answer 28

Arachnoid villi

Question 29

True about neuron

Answer 29

At resting state, it is electronegative at -80 mv

Question 30

Most common neurotransmitter of neuromuscular junction

Answer 30

Acetylcholine

Question 31

Unipolar

Answer 31

Posterior root ganglion

Question 32

Lines ventricles and central canal

Answer 32

Ependyma

Question 33

Layer closest to brain and follows contour of brain and spinal cord

Answer 33

Pia mater

Question 34

Divides the cerebrum into left and right hemisphere

Answer 34

Falx cerebri

Question 35

What organelle contributes to the production of DOPA

Answer 35

Melanin

Question 36

Coronal structure

Answer 36

Fronta

Question 37

What foramen is seen in the mandible

Answer 37

Mental foramen

Question 38

Where does mandibular nerve traverses

Answer 38

Foramen ovale

Question 39

Where does maxillary nerve traverses

Answer 39

Foramen rotundum

Question 40

Which does not pass through the jugular foramen

Answer 40

Hypoglossal nerve

Question 41

Best describes plasma membrane

Answer 41

Coated with glycocalyx

Question 42

What bone does the mastoid process originate

Answer 42

Temporal

Question 43

It is a compact protein containing sex chromosome

Answer 43

Barr body

Question 44

Bone that belongs to anterior cranial fossa

Answer 44

Ehtmoid bone

Question 45

True about lysosomes

Answer 45

Acts as a cytoplasmic scavenger

Question 46

Converts chemical energy

Answer 46

Mitochondria

Question 47

True about plasma membrane in axons

Answer 47

Ribosomes connect with rough ER

Question 48

True of neuroglia

Answer 48

Non-excitable cell that supports the neuron

Question 49

Not true of neuronal nucleus

Answer 49

Small and triangular shaped

Question 50

What does sella turcica houses

Answer 50

Hypothalamus