Medulla Flashcards
(28 cards)
What is the main function of the medulla oblongata?
Regulation of vital functions such as breathing, heart rate, and blood pressure.
True or False: The medulla oblongata is located at the base of the brainstem.
True
What is the surface of the medulla oblongata covered by?
Pia mater
What is the main structure on the surface of the medulla oblongata that is responsible for coordinating movement and balance?
Inferior cerebellar peduncle
What is the name of the structure on the surface of the medulla oblongata that contains sensory fibers traveling from the body to the brain?
Gracile fasciculus
Fill in the blank: The _______ is a structure on the surface of the medulla oblongata responsible for relaying sensory information from the face to the brain.
Trigeminal nerve
Which cranial nerve emerges from the medulla oblongata?
Cranial nerve XII (Hypoglossal nerve)
What is the name of the structure on the surface of the medulla oblongata that contains motor fibers traveling from the brain to the body?
Pyramidal tract
What is the function of the pyramidal tract on the surface of the medulla oblongata?
Controls voluntary movements
Which part of the brainstem is superior to the medulla oblongata?
Pons
What is the name of the structure on the surface of the medulla oblongata that contains fibers connecting the cerebellum with the brainstem?
Middle cerebellar peduncle
What is the name of the structure on the surface of the medulla oblongata that contains the nucleus responsible for controlling respiration?
Nucleus ambiguus
What is the name of the structure on the surface of the medulla oblongata that contains the nucleus responsible for controlling heart rate and blood pressure?
Dorsal motor nucleus of the vagus nerve
Fill in the blank: The _______ is a structure on the surface of the medulla oblongata responsible for relaying sensory information from the inner ear to the brain.
Vestibulocochlear nerve
Which part of the brainstem is inferior to the medulla oblongata?
Spinal cord
What is the name of the structure on the surface of the medulla oblongata that contains the nucleus responsible for controlling vomiting and coughing?
Nucleus tractus solitarius
What is the name of the structure on the surface of the medulla oblongata that contains the nucleus responsible for controlling swallowing?
Nucleus ambiguus
True or False: The medulla oblongata is responsible for the production of hormones.
False
Which part of the brainstem is posterior to the medulla oblongata?
Fourth ventricle
What is the name of the structure on the surface of the medulla oblongata that contains the nucleus responsible for controlling taste perception?
Nucleus tractus solitarius
Fill in the blank: The _______ is a structure on the surface of the medulla oblongata responsible for relaying sensory information from the tongue to the brain.
Glossopharyngeal nerve
What is the name of the structure on the surface of the medulla oblongata that contains the nucleus responsible for controlling the gag reflex?
Nucleus ambiguus
Fill in the blank: The _______ is a structure on the surface of the medulla oblongata responsible for relaying sensory information from the pharynx to the brain.
Vagus nerve
What is the name of the structure on the surface of the medulla oblongata that contains the nucleus responsible for controlling the laryngeal muscles?
Nucleus ambiguus