Brainstem Flashcards
The brainstem produces the rigid _______ behaviors necessary for ________.
Autonomic
Survival
The pathway from the spinal cord to the brain is called…
The brain stem
10 of the 12 cranial nerves originate from:
The brainstem
The midbrain is ______ in length and the ________ _______ passes through it.
1 inch
cerebral aquaduct
The third and fourth ventricles are connected by the _____ ________.
Cerebral aquaduct
On the ventral aspect of the mid brain, the ________ _______ are most visible.
Cerebral peduncles
On the dorsal aspect, these four nodes can be seen:
(2) Superior colliculi
(2) Inferior colliculi
The superior colliculi are associated with:
Vision
Coordinate visual tracking
The inferior colliculi are associated with:
Auditory
Startle reflex- turning the head towards sound
The midbrain is connected to the cerebellum by the:
Superior cerebellar peduncles
“Pons” means _____and is ______ in length.
Bridge
1 inch
Anatomically speaking, the pons is an _________ bulge on the ________ surface of the _______ _______.
Anterior
Anterior
Brain Stem
The pons “bridges” ______ to ______ and _________ to ________
brain to spinal cord
cerebellum to brain stem
The pons is connected to the cerebellum with:
The middle cerebellar peduncles
The medulla oblongata is _________ in length and lies just _________to the __________ ________
1.2 inches
Superior
Foramen Magnum
The medulla oblongata contains all:
Ascending and descending tracts that connect the brain to the spinal cord
The medulla oblongata is connected to the cerebellum with the:
Inferior cerebellar peduncles
How are the pons, medulla, and midbrain attached to the ________?
Cerebellum
With the cerebellar peduncles
The reticular formation contains: (3)
Cardiac center
Vasomotor center (regulates smooth muscle around arteries)
Respiratory center
The nuclei of the reticular formation are found __________ the brainstem and are known as the “________ ________.
Throughout
Survival Brain
The pyramids are viewable on a _______ view
Ventral
In the pyramids, there is the ________ of the ______ tracts
Decussation
Motor
Decussation of motor tracks means:
The large motor tracts from the cerebral cortex cross here; right brain for left leg
On a dorsal view of the medulla, these two paired structures are visible:
fasciculus gracilis
fasciculus cuneatus
(and spell!)
The fasciculus gracilis and cuneatus are the tracts and relay nuclei for general ________ information coming to the ________ cortex.
somatic
somatosensory
What can happen with a blow to the back of the neck? What results from this?
Problems with reticular formation
E.g., polio, a virus that targets the respiratory nuclei in reticular formation
