Chapter 3 Flashcards
Rhombencephalon
Embryonic precursor of the hindbrain.
Hindbrain vs brainstem
Hindbrain is the term that refers to the part that connects the spinal cord to the mid brain and includes the cerebellum. Brainstem refers to the whole of the midbrain and hindbrain, excluding the cerebellum.
What are the parts present in the hindbrain at the level of the inferior olive?
Inferior olive Solitary nucleus Fourth ventricle Hypoglossal nuclei Reticular nuclei Sensory trigeminal nuclei Cerebellum
What information does the sensory trigeminal nuclei receive?
The nuclei receives touch, pain and temperature information from the face.
Why is the sensory trigeminal sometimes referred to as spinal trigeminal nuclei?
It is because the nuclei extends a it into the cervical region of the spinal cord.
What is the role of the hypoglossal nuclei?
The hypoglossal nuclei controls the muscles of the tongue.
What is the role of solitary nuclei?
The solitary nuclei relieves taste sensation and sensory information from internal organs such as the stomach and lungs.
What is the role of the inferior olive?
The inferior olive fires ten action potentials per second which is like a timing machine. Those timing is used by cerebellum to coordinate movement for it to be fluent.
What is present at the level of the facial nucleus in the hindbrain?
Facial nucleus Sensory trigeminal Pyramidal tract Inferior cerebellar peduncle Cochlear nuclei Vestibular nuclei Reticular nuclei Deep cerebellar nuclei
What is the role of facial nucleus?
The facial nucleus controls the muscles of the face expression. It is large group of motor neurons
What is the role of cochlear nucleus?
It receives auditory information from the ears.
What is the role of vestibular nucleus?
To determine head position and head movement to give us a sense of balance.
What is in the hindbrain at the level of the superior olive?
Superior olive Pyramidal tract Reticular nuclei Parabrachial nucleus Medial lemniscus Sensory trigeminal Motor trigeminal Cochlear nucleus Locus coeruleus Central grey MCP SCP
What is the role of superior olive?
The superior olive processes auditory information.
What is the role of motor trigeminal nucleus?
The motor trigeminal nuclei controls the masticatory muscles.
