Cerebellum And Fourth Ventricle Question And Answers

Cerebellum And Fourth Ventricle Question And Answers

Question 1. Define the cerebellum and list its functions.

Answer. The cerebellum (Latin, cerebellum = little brain) is the largest part of the hindbrain and the second-largest part of the brain as a whole. It weighs about 150 g and is located in the posterior cranial fossa underneath the tentorium cerebelli, behind the pons and medulla oblongata.

Cerebellum questions and answers

Read And Learn More: Selective Anatomy Notes And Questions And Answers

“Understanding cerebellum and fourth ventricle through FAQs: Anatomy, functions, and uses explained”

Functions of the Cerebellum: The functions of the cerebellum include:

• Maintenance of equilibrium
• Maintenance of muscle tone
• Maintenance of posture

“Importance of studying cerebellum and fourth ventricle for medical students: Questions explained”

Question 2. Enumerate the important signs and symptoms seen in cerebellar lesions.

Answer.

• Asthenia: Muscular hypotonia due to loss of muscle tone.
• Asynergia: Jerky movements due to incoordination of muscles.
  • Ataxia: Staggering gait and inability to walk in a straight line due to incoordination of different muscle groups in the lower limb.
  • Adiadokokinesis (disdiadokokinesis): Inability to perform alternate movements in rapid succession, such as pronation and supination.
  • Dysmetria: Loss of ability to measure the distance for reaching the intended goal.
  • Dysarthria (or scanning speech): Loss of coordination of muscles concerned with speech.
  • Rebound phenomenon: Inability to check the action of agonist muscles by the corresponding antagonist muscles.

“Common challenges in mastering cerebellum anatomy effectively: FAQs provided”

• Intention tremor: Due to dysmetria. The tremors are evident during purposeful movements and are diminished or absent at rest.