Midterms: Brain Stem Flashcards
The efferent connection of this tract sends fibers to the thalamic nuclei, cerebellum, red nucleus, corpus striatum, substantia nigra, hypothalamus, and subthalamic nucleus.
a. Corticospinal tract
b. Reticular formation
c. Corticobulbar tract
d. Spinothalamic tract
a. Corticospinal tract
Which of the following cranial nerve arises from the pons? *
a. Trochlear.
b. Vagus
c. Trigeminal
d. Facial
c. Trigeminal
Which of the following cranial nerves does not emerge from the post olivary groove?
a. Hypoglossal nerve
b. Glossopharyngeal nerve
c. Vagus nerve
c. Vagus nerve
What structure connects the pons to the cerebellum?
Middle cerebellar peduncle
This tract conveys pain and temperature information from the body to the brain
Spinothalamic tract
Which is not true about the brainstem?*
a. Connects the cerebellum to the spinal cord and cerebrum
b. Responsible for heart rate and sleep
c. Divided into 3 sections
D. Contains the midbrain
a. Connects the cerebellum to the spinal cord and cerebrum
The Pons is part of the primitive brain, specifically: *
a. Prosencephalon
b. Metencephalon
c. Rhombencephalon
Metencephalon
This nucleus regulates movement and contains dopaminergic neuron
Substantia Nigra
Composition of each
PROSENCEPHALON (FOREBRAIN) (2)
DIENCEPHALON (1)
RHOMBENCEPHALON (HINDBRAIN) (2)
PROSENCEPHALON; TELENCEPHALON, DIENCEPHALON
MESENCEPHALON (MIDBRAIN)
RHOMBENCEPHALON; METENCEPHALON, MYELENCEPHALON
Causes sudden respiratory and cardiac arrest due to medulla compression.
Cerebellar tonsillar herniation
Which of the following statement is not true?
a. The anterior division of the midbrain is the tectum
b. It is divided by the cerebral aqueduct into anterior and posterior
c. Connects the pons to the diencephalon and posteriorly to the cerebellum
d. The superior cerebellar peduncle connects the midbrain to the cerebellum
b. It is divided by the cerebral aqueduct into anterior and posterior
The brainstem connects the ?
The brainstem connects the cerebrum to the spinal cord and cerebellum.
Ten of the twelve cranial nerves originate from the cranial nerve nuclei in the brainstem
which 2 does not?
CN I
CN II
Connects the pons to the diencephalon and posteriorly to the cerebellum via superior cerebellar peduncles.
Anterior part includes crus cerebri with interpeduncular fossa; contains cerebral aqueduct centrally.
MIDBRAIN
Cranial nerve that exit the Midbrain
Trochlear nerve emerges just inferior to inferior colliculi;
Oculomotor nerve arises from midbrain in the oculomotor sulcus.
Contains dopaminergic neurons, plays a role in reward processing, stress modulation, learning and memory
Ventral Tegmental Area
Pons connects what structures?
Connects medulla and brainstem
*Cerebellar connection: Posterior pons linked to the cerebellum via middle cerbellar peduncles
What are the cranial nerves that exits the Pons
CN V, VI, VII, VIII
*Cranial Nerves 6, 7, and 8 ; Emerge from the groove where pons meets medulla; CN5 exits from the superior anterior lateral pons
Locus coeruleus is compromised which may result to what condition?
Alzheimer’s Disease
T or F
Function in movement and breathing: pontine nuclei play a vital role in coordinating movement and assist in modulating breathing
TRUE
Which cranial Nerves exits the Medulla Oblongata?
CN IX, X, XI, XII
If the patient has lock in syndrome, what structure pf the brainstem may be affected?
Pons
MAJOR BRAINSTEM TRACTS
MOTOR TRACTS; Corticospinal Tract, Corticobulbar Tract
SENSORY TRACTS; Spinothalamic Tract, V Dorsal Column-medial lemniscus tract, Trigeminal Lemniscus and Spinotrigeminal Tract
