Cranium and Cerebrum

Question 1

Contains very large and medium-sized
pyramidal cells

Answer 1

Ganglionic or Internal Pyramidal Layer (5th Layer)

Question 2

Responsible for the projection
fibers of the corticospinal
(pyramidal) tract

Answer 2

Large pyramidal cells = Betz Cells

Question 3

Responsible for the rapid
skilled voluntary
movements of the limbs

Answer 3

Corticospinal (pyramidal) tract

Question 4

Controls the prime mover
muscles

Answer 4

Corticospinal (pyramidal) tract

Question 5

Decreased/Absence of Betz Cells

Answer 5

Primary Lateral Sclerosis

Question 6

Most superficial which lies directly under the
pia mater

Answer 6

Molecular Layer (Plexiform Layer)

Question 7

Consist of dense network of tangentially
oriented nerve fibers.

Answer 7

Molecular Layer (Plexiform Layer)

Question 8

Large number of synapses between different
neurons that occur

Answer 8

Molecular Layer (Plexiform Layer)

Question 9

Large number of small pyramidal cells and
stellate cells

Answer 9

External Granular Layer

Question 10

larger pyramidal cells found here

Answer 10

External Pyramidal Layer

Question 11

Main input of cortical station

Answer 11

Internal Granular Layer

Question 12

Most of the stimuli from periphery arrive
here

Answer 12

Internal Granular Layer

Question 13

Closely packed stellate cells

Answer 13

(External band
of Baillarger

Question 14

Closely packed stellate cells (External band
of Baillarger) and smaller portion of
pyramidal cells

Answer 14

Internal Granular Layer

Question 15

Betz cells and medium-sized pyramidal cells
(3% of projection of cortiscopinal tract)

Answer 15

Internal Pyramidal Layer (Ganglionic Layer

Question 16

Stellate cells and Cells of Martinotti

Answer 16

Internal Pyramidal Layer (Ganglionic Layer)

Question 17

Cells of Martinotti

Answer 17

Multiform Layer (Layer of Polymorphic Cells)

Question 18

Fibers underlying the white matter

Answer 18

Multiform Layer (Layer of Polymorphic Cells)

Question 19

Most common type of neuron

Answer 19

Pyramidal Cells

Question 20

Apex pointing outwards toward the pia surface of the brain

Answer 20

Pyramidal Cells

Question 21

Extend orthogonally to their cells layer with dendrites
extending either into deeper and more superficial
layers

Answer 21

Fusiform Cells

Question 22

Also known as granule layer

Answer 22

Stellate Cells

Question 23

Rounded with short dendrites rotating
circumferentially out of the body

Answer 23

Stellate Cells

Question 24

Predominantly found in layers 2, 4, 6

Answer 24

Stellate Cells

Question 25

Small cells w/ limited number of short dendrites and
axons which extends superficially

Answer 25

Cells of Martinnotti