Shared Flashcard Set

Details

Chapter 12
Central Nervous System
40
Anatomy
Undergraduate 1
11/08/2008

Additional Anatomy Flashcards

 


 

Cards

Term
Thalamic Nuclei
Definition
relay stations in conduction of sensory impulses to cerebral cortex for interpretation and impulses to and from cerebral motor cortex and lower centers. Involved in memory processing
Term
Lateral Spinothalamic
Definition
ascending
Term
Posterior Spinocerebellar
Definition
Ascending
Term
Dura Matter
Definition
strongest layer of meninges surrounds the brain. 2 layers of fibrous connective tissues. Periosteal attaches to inner skull, menigeal forms external covering of the brain.
Term
Subarachnoid Space
Definition
found beneath the arachnoid space. Spanned by web like expansions securing the arachnoid matter to pia matter. Filled w/ CSF and large blood vessels serving the brain.
Term
Rubrospinal
Definition
descending
Term
Reticulospinal(anterior, medial, and lateral)
Definition
descending
Term
Lateral Corticospinal
Definition
descending
Term
Fasclculus Cuneatus & Fasciculus Gracilis
Definition
ascending
Term
Anterior spinocerebellar
Definition
ascending
Term
Anterior Spinothalamic
Definition
Ascending
Term
Chorid Plexus
Definition
A capillary knot that protrudes into a brain ventricle involved in forming CSF. Inclosed by pia matter and ependymal cells.
Term
Tectospinal
Definition
descending
Term
Vestibulospinal
Definition
descending
Term
Pia Matter
Definition
Delicate Connective tissue w/ lots of tiny blood vessels. Clings tightly to the brain
Term
Arachnoid Matter
Definition
Loose Brain Covering. Does not not dip in sulci. Middle Layer of three mengenis.
Term
Mid-Brain
Definition
Conduction Pathway between higher and lower brain centers. Visual and auditory reflex centers contain nuclei fro cranial nerves III and IV. Controls visual reflexes that coordinate head and eye movements when we follow a moving object
Term
Basal Nuclei/Basal Ganglia
Definition
Several patches of gray matter burried deep within the white matter of central hemisphere. Helps to regulate voluntary movement activity(skeletal muscles) Important in motor coordination
Term
Medulla Oblongata
Definition
Pathway between higher brain centers and spinal cord. Houses nuclei of cranial nerves VIII-XII. Ascending sensory pathways from skin and visceral nuclei controlling heart rate, blood vessels diameter, respiratory rate, vomiting, and coughing. Sensory relay to cerebellum. Autonomic reflex center involved in maintaining body homeostasis.
Term
Reticular Formation
Definition
Functional system that spans the brain stem; maintains cortical matter alertness and filters out repetitive stimuli. Regulates skeletal and visceral muscle activity. Keeps the cerebral cortes alert, conscious and enhances excitability.
Term
Pons
Definition
Relay information from cerebrum to cerebellum. Control respiratory rate and depth. Houses nuclei of cranial nerves V-VII. Contains the pneumatic center to maintain the normal rhythm of breathing.
Term
Parietal Lobes
Definition
Sensory areas are responsible for the sensations of touch, temperature, pressure and pain involving the skin. Association areas function in understanding speech and in using words to express thoughts and feelings.
Term
Occipital Lobes
Definition
Sensory Areas responsible for vision. Association Areas combine visual images w/ other sensory experiences.
Term
Frontal Lobe
Definition
Motor Areas control movement of voluntary skeletal muscles. Association areas carry on higher intellectual processes such as those required for concentrating, planning, complex problem solving, and judging consequences of behavior.
Term
Temporal Lobes
Definition
Sensory Areas responsible for hearing. Association areas interpret sensory experiences and remember visual scenes, music and other complex sensory patterns.
Term
Limbic System
Definition
Functional System involving cerebral and diencephanlon structures that mediates emotional response. Involved in memory processing.
Term
Hypothalamus
Definition
Integrates the autonomic nervous system. Regulates body temperature, food intkae, water balance, thirst and biological rhythms and drives. Regulates horomonal output of anterior pituitary glands. The main visceral control center of the body responsible for maintaining homeostasis.
Term
Cerebellum
Definition
Processes information from cerebral motor cortex and from propriceptors and visual equlibrium pathways and provides instructions to cerebral motor cortex and subcortical motor center that result in proper balance and smooth skeletal muscle movement.
Term
Cerebral Hemispheres
Definition
Localizes and intreprets sensor inputs. Contains voluntary and skilled muscle activity and functions. Intellectual and emotional processing. Initiates skeletal muscle movements.
Term
Thalamus
Definition
Station for sensory impulses, passing upward to the sensory cortex. Sorts and edits information from sensory areas ascending to the cerebral cortex.
Term
Epithalamus
Definition
Associated with the pineal gland. Secretes melatonin to induce sleep.
Term
Brain Stem
Definition
provides a pathway for ascending and descendign tracts, control of vital activites, controls conscious and awake/sleep patterns by neurons of reticular formation.
Term
Inferior Penduncle
Definition
brings sensory information concerning the position of limbs, joints and other parts of the body to the cerebellum
Term
Middle penduncle
Definition
transmits a signal from the cerebral cortex to the cerebellum concerning the desired position of these parts.
Term
Superior penduncle
Definition
After intergrating and analyzing this information in this pair of nerve tract, the cerebellum sends impulses to the mid brain
Term
CSF
Definition
cerebrospinal fluid. Plasma like fluid that fills the cavaties of the CNS and surrounds the CNS externally; protects the brain and spinal cord.
Term
Amygdala
Definition
found in the limbic system; almond shaped nucleus that sits on the tail of the caudate nucleus in the diencephalon
Term
Hippocampus
Definition
limbic system structure that plays a role in converting new information into long term memories
Term
Prefrontal Cortex
Definition
Anterior association area. Involved with intellect, complex learning abilities, recall and personality
Term
Diencephalon
Definition
The part of the forebrain between the cerebral hemispheres and the midbrain including the thalamus, the third ventricle, and the hypothalamus.
Supporting users have an ad free experience!