CHP 13-14 Flashcards
The brainstem consists of these four structures:
The medulla, pons, and midbrain, and reticular formation.
What is the medulla oblongata responsible for?
The medulla is the center for several important reflexes (i.e, heart rate, vomiting, breathing, coughing/sneezing).
What is the pons responsible for?
The pons is responsible for relaying information between the cerebrum and cerebellum; site for reflex center.
What is the function of the midbrain?
The midbrain serves as visual reflex center.
What does the reticular formation control?
The sleep/wake cycle.
What is the functions of our cerebellum?
Our cerebellum controls muscle movement, balance, and is responsible for muscle memory.
What are the four subdivisions of our Diencephalon?
The thalamus, sub-, epi-, and hypo- thalamus.
What does our thalamus influence? What is it’s major role?
Our thalamus influences mood and movement and is the major sensory relay center.
What is the function of the hypothalamus?
The hypothalamus is the major control center for maintaining homeostasis and regulating endocrine functions.
What are the two structures of the cerebrum?
The basal nuclei and the limbic system.
What are the functions of the basal nuclei?
The basal nuclei controls muscle activity and posture; inhibits unintentional movement.
What is the function of the limbic system?
The limbic system produces autonomic responses to smell, emotion, mood, and memory.
The medulla consists of structures called olives. What are they?
Olives are nuclei that help regulate balance, coordination, and modulation of sound from inner ear.
The medulla consists of the nuclei for these nerves:
V, IX-XII
The pontine, relating to or affecting the __ of the brain, acts as a relay between the ____ and ____.
Pons; cerebrum, cerebellum.
The pons consists of the nuclei for these nerves:
V-IX
The midbrain consists of the nuclei for these nerves:
III-V
The Tectum is a structure of the midbrain that consists of the
Inferior and superior colliculi.
The two superior colliculi are involved in ____ reflexes.
Visual.
The two inferior colliculi are involved in ____ reflexes.
Auditory.
The superior colliculi receive information from the ____ ____, ____, ____, and cerebrum.
Inferior colliculi, eyes, skin.
The midbrain contains what type of nuclei that is aids in unconscious regulation and coordination of motor activities.
Red nuclei.
Red nuclei
aids in unconscious regulation and coordination of motor activities in the midbrain.
Tegmentum are
ascending tracts of the midbrain. Ex. are spinal and medial lemniscus.
The group of nuclei scattered throughout the brainstem forms the
Reticular formation.
What are cerebellar peduncles?
Fiber tracts that communicate with other parts of the brain.