Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Block I a
Intro to neuroscience
| Fact/definition | Answer/term |
|---|---|
| Collection of neurons within the PNS | ganglion |
| Slipper-shaped plate of thickened ectoderm, lying over notochord | neural plate |
| Neural plate invaginates along its central axis to from this | neural groove |
| Raised border of neural groove are known as | neural folds |
| By end of the 3rd week neural folds move closer together and fuse in the midline forming | neural tube |
| Formatoin of the neural tube begins in this region and progresses in what direction(s) | cervical, cranial and caudal |
| This embryonic structure gives rise to the brain and the spinal cord | neural tube |
| Neuroectodermal cells lying at the tip of neural folds separate from neighboring cells and migrate to sides of neural tube forming these cells | neural crest cells |
| Name 5 things derived from neural crest cells | sensory ganglion and crainal nerves, autonomic ganglion, schwann cells, menniges of the brain and spinal cord, melanocytes, suprarenal medulla, and some skeletal and muscle components of the head |
| Cephalic end of neural tube gives rise to 3 dilatations, or primary brain vesicles...what are they | prosencephalon, mesencephalon, and rhombencephalon |
| The prosencephalon corresponds to what embryologic structure | forebrain |
| The mesencephalon correlates to what embroylogic structure | midbrain |
| The rhombencephalon correlates to what embryologic structure | hindbrain |
| The prosencephalon is further divied into | telencephalon and diencephalon |
| The rhombencephalon is further divided into | metencephalon and myelencephalon |
| The telencephalon relates to what brain region | cerebral hemispheres |
| The diencephalon relates to what brain region(s) | thalamus and hypothalamus |
| The metencephalon relates to what brain region(s) | pons and cerebellum |
| The myelencephalon relates to what brain region(s) | medulla oblongata |
| Cavity of the rhombencephalon | 4th ventricle |
| Cavity of the mesencephalon | cerebral aquaduct (aqueduct of Sylvius) |
| Cavity of the diencephalon | 3rd ventricle |
| Cavity of the telencephalon | lateral ventricles |
| Rough endoplasmic reticulum forms prominent clumps in the neuronal cytoplasm know as | Nissl bodies |
| Nissl bodies are found in what part(s) of neurons | cell body (soma) and dentrites |
| Transports molecules and organelles from cell body to distal end of axon | anterograde axonal transport |
| Returns used or worn out materials to cell body for restoration, transports materials taken up by endocytosis | retrograde axonal transport |
| Multilayered phosopholipid sheath formed by supporting cells | myelin |
| The most important characteristic of myelin is | increase conduction velocity of nerve impulses |
| This type of neuron gives rise to a single cell process which divides into periphral and central processes | unipolar neuron |
| Unipolar neurons are found in what location(s) | sensory ganglion and some cranial nerves |
| This type of neuron's cells body gives rise to 1 axon and 1 dendrite | bipolar neuron |
| Bipolar neurons are found in what location(s) | retina and ganglion of the vestibulocochlear nerve |
| This type of neuron's cell body gives rise to 1 axon and 2 or more dendrites | multipolar neuron |
| This type of neurons lies entirely with in CNS and establishes neuronal circuits between sonsory and motor neurons and between other neurons like them | interneurons |
| This type of fiber carries impulses from the periphral receptors to the CNS | afferent(sensory) |
| This type of fiber carries impulses from the CNS to periphral effectors | efferent(motor) |
| Groups of neuronal cell bodies with similar anatomical connections and functions within the CNS | nuclei (grey matter) |
| Groups of axons that have similar origin, termination, and course and transmit the same type of information | tracts |
| A series of neurons designed to carry a specific type of information from one site to another(e.g. periphral receptors to cerebral cortex, from peripheral receptors to cerebellum) | pathway |
| Term used to define the crossing of major ascending and descending tracts to the opposite side within the CNS | decussation |
| This type of cell lines the ventricles of the brain and central canal of the spinal cord | ependymal cells |
| This type of cell are phagocytes that engulf debris resulting from injuries, infections, or disease in the CNS | mircoglial cells |
| This type of cells has processes that reach the surface of the brain and spinal cord and form a protective covering (external limiting membrane or glial membrane) | astrocytes |
| This type of cell assists in the blood-brain barrier and assists with electrolyte balance of the CNS | astrocytes |
| This type of cell removes neurotransmitters from the synaptic cleft and produces trophic factors necessary for neuronal survival, also forms scars after CNS injury | astrocytes |
| This type of cell is involved in formation and maintenance of myelin in the CNS | oligodendrocytes |
| One oligodendrocyte forms myelin around one or many axons in the CNS? | many (40-50) |
| This cell is involved in the formation and maintenance of myelin in the PNS, and maintains how many axons? | Schwann cell (part of 1 axon) |
| This type of cell surround neuronal cell bodies in the sensory and autonomic ganglion | Capsular (Satellite) cells |
Created by:
justice2
Popular Anatomy sets