Terminology

Question 1

Brainstem

Answer 1

medulla oblongata, pons and midbrain

Question 2

caudal

Answer 2

Towards the tail end (oppositie of rostral)

Question 3

Column

Answer 3

A large bundle of ascending or descending nerve fibers, composed of different fasciuli

Question 4

contralateral

Answer 4

the opposite side

Question 5

cortex

Answer 5

the periphery of a structure, the opposite of medulla

Question 6

Decussation

Answer 6

The level in the CNS where paired fiber tracts cross from one side of the body to the other (e.g. pyramidal decussation)

Question 7

Enteroceptor

Answer 7

A sensory receptor that provides information to the CNS concerning the external environment

Question 8

Fasciuculus

Answer 8

A bundle, also tract, of ascending or descending nerve fibers within the CNS (e.g. fasciculus cuneatus)

Question 9

Fiber

Answer 9

A long thin structure; refers to an axon or a collection of axons

Question 10

Fovea

Answer 10

A depression or a pit (e.g. fovea centralis of the retina)

Question 11

Funiculus

Answer 11

A large bundle (also column) of ascending and descending nerve fibers, composed of several fasciculi

Question 12

Ganglion

Answer 12

A collection of nerve cell bodies in the CNS e.g. Basal Ganglia

Question 13

Glomerulus

Answer 13

Structures with a spherical configuration

Question 14

Infundibulum

Answer 14

A funnel-like structure

Question 15

Interoceptor

Answer 15

A sensory receptor that provides information to the CNS concerning the body’s internal environment

Question 16

Ipsilateral

Answer 16

The same side

Question 17

Lamina

Answer 17

A layer os specific material such as the layering of nerve cell bodies in the spinal cord

Question 18

Myelin

Answer 18

A fatty substance that surrounds certain acons; compised of spiral layers of the cell membranes of Schwann cells (in the peripheral nervous system) and of the oligodendroglia (in the CNS)

Question 19

Neurite

Answer 19

A collective term for axons and dendrites

Question 20

Neuropil

Answer 20

A complex of axons, dendrites, and processes of neuroglia that form a web-like network between nerve cell bodies of the gray matter

Question 21

Nucleus

Answer 21

Core

Question 22

Operculum

Answer 22

A cover or lid

Question 23

Peduncle

Answer 23

A massive collection of nerve fiber bundles that connect the cerebrum and the cerebellum to the brainstem

Question 24

Perikaryon

Answer 24

The cell body of a neuron (i.e. without its dendrites and axon); also referred to as soma

Question 25

plexus

Answer 25

the interwoven arrangements of nerve fibers that serve a specific region

Question 26

Project

Answer 26

When one group of cells relay their information to a second group of nerve cells it is said that they first group ‘projects’ to the second group

Question 27

Proprioceptor

Answer 27

sensory nerve endings in muscles, joints and tendons that inform the CNS concerning the position and movements of the regions of the body in space

Question 28

Raphe

Answer 28

A seam or midline structure

Question 29

Rostral

Answer 29

Towards to the nose (or nostral); toward a higher position, opposite of caudal

Question 30

Tract

Answer 30

A bundle, also fasciculus, of ascending or descending nerve fibers within the CNS

Question 31

Sucus

Answer 31

Groove

Question 32

Gyrus

Answer 32

Fold