Flashcards in Functional Anatomy Of The Brain + Cranial nerves Deck (98)
What does the frontal lobe do?
What is the function of the temporal lobe?
What is the function of the parietal lobe?
Sensory - pain, pressure, temperature
What is the function of the occipital lobe?
What is the corpus callosum.
Connects the cerebral hemispheres and allows communication between them
What is the amygdala and what does it do?
It is a group of neurons located deep to the medial temporal lobes
Have a primary role in processing and memory of emotional reactions
What is the general role of the limbic system?
Supports a variety of functions including emotion, behaviour and long-term memory
What is the function of the basal ganglia?
Co-ordinates gross, automatic muscle movements and regulates muscle tone
Which brain regions make up the diencephalon?
What is the function of the epithalamus?
Consists of the
- pineal gland (melatonin secretion - biological clock and sleepiness)
- habenular nuclei (emotional response to olfaction)
What is the function of the thalamus?
Relays sensory information to the cerebral cortex
Includes nuclei involved in voluntary, motor and arousal actions
Anterior nucleus functions in emotions, memory, cognition and awareness
Describe the function of the subthalamus
- subthalamic nuclei
- portions of basal substantia nigra
- portions of red nucleus
Helps control body movements
Describe the function of the hypothalamus
Controls and integrates ANS and pituitary gland activities
Regulates emotional and behavioural patterns
Controls body temperature
Regulates eating and drinking behaviour
What structures make up the midbrain?
What is the function of the midbrain?
Relays motor impulses from cerebral cortex to the pons
Relays sensory impulses from the spinal cord to thalamus
What is the function of the superior colliculus?
Co-ordinates movement of the eyeballs in response to visual and other stimuli
What is the function of the inferior colliculus?
Co-ordinates movement of the head and trunk in response to auditory stimuli
What brain parts make up the hindbrain?
What is the function of the cerebellum?
Compares intended movements to what is actually happening
- co-ordinates smooth and complex movements
Regulates posture and balance
What is the function of the pons?
Relays impulses from one side of cerebellum to the other, and from medulla to midbrain
Contains nuclei of origin for CNV, VI, VII, and VIII
What is the function of the medulla oblongata?
Relay between brain and spinal cord
Reticula formation functions in consciousness and arousal
Vital centres regulate heart beat, breathing and blood vessel diameter
Other centres co-ordinate vomiting, swallowing, coughing, sneezing and hiccuping
Contains nuclei of origin for CNIX, X, XI and XII
What does the olfactory nerve do?
Sensory - sense of smell
What does the optic nerve do?
Sensory - sight
What does the oculomotor nerve do?
- eyelid movement
- eyeball movement (medial, superior and interior rectus and inferior oblique)
- pupillary constriction
- accommodation of lens for near vision
What does the trochlear nerve do?
- eyeball movement (superior oblique)
What does the trigeminal nerve do?
Both sensory and motor
- sensory to the face (opthalamic, maxillary and mandibular)
- motor to the muscles of mastication (masseter, temporal is, pterygoid)
What does the abducens nerve do?
- movement of eyeball (lateral rectus)
What does the facial nerve do?
- sensory to skin of external ear and anterior tongue
- motor to muscles of facial expression and helps secrete saliva and tears
What does the vestibulocochlear nerve do?
- hearing and equilibrium