List of the ventricles of the brain Source of CSF Description of the Blood-CSF b
ID: 175983 • Letter: L
Question
List of the ventricles of the brain Source of CSF Description of the Blood-CSF barrier - what is its importance? Value of circumventricular organs Functions of the following parts of brain Medulla oblongata Pons Midbrain cerebellum Functions of Thalamus Epithalamus Hypothalamus Regions of cerebrum and their primary functions What is the reticular formation? What is the limbic system? List its components What is the difference between a primary and an association area of the brain? Differences between sensory and motor regions of cerebral cortex. What are the gyri for these functions? Why the amount of brain tissue of the primary motor and sensory gyri is greater for the head and hands than for the trunk and hind limbs Functions of Wernicke and Broca areas Definition of cerebral lateralization - key differences between left and right hemispheres Names of the 12 cranial nerves and their primary functions/areas that they serve.Explanation / Answer
Answer:
4) Ventricles of the brain: The four cavities of the human brain are called ventricles.
5) Source of CSF (cerebrospinal fluid): In the ventricular system (set of four interconnected cavities as mentioned above) the CSF is produced. Within each ventricle, there is a region of choroid plexus (a network of ependymal cells) which is involved in the production of CSF in the ventricles of brain.
6) Description of Blood-CSF barrier (BCSFB)- Its importance:
Value of circumventricular organs: Circumventricular organs (CVOs) are structures in the brain that are characterized by their extensive vasculature and lack of a normal blood brain barrier (BBB). CVOs can be classified into sensory (include the area postrema (AP), the subfornical organ (SFO) and the vascular organ of lamina terminalis) and secretory organs (subcommissural organ (SCO), the posterior pituitary, the pineal gland, the median eminence and the intermediate lobe of the pituitary gland).
7. Functions of following parts of the brain:
Medulla oblongata: It is responsible for autonomic (involuntary) functions ranging from vomiting to sneezing. The medulla contains the cardiac, respiratory, vomiting and vasomotor centers and therefore deals with the autonomic functions of breathing, heart rate and blood pressure.
Pons: The pons contains nuclei that relay signals from the forebrain to the cerebellum. It also contain nuclei that deal primarily with sleep, respiration, swallowing, bladder control, hearing, equilibrium, taste, eye movement, facial expressions, facial sensation, and posture.
Mid Brain: The midbrain helps to relay information for vision and hearing. It is associated to the dopamine production (from the substantia nigra and ventral tegmental area) which plays a role in excitation, motivation and habituation.
Cerebellum: It plays an important role in motor control. It receives input from sensory systems of the spinal cord and from other parts of the brain, and integrates these inputs to fine-tune motor activity. It may also be involved in some cognitive functions such as attention and language, and in regulating fear and pleasure responses. It contributes to coordination, precision, and accurate timing during the movement.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.