Describe the descending motor pathways from primary motor cortex
to (but not including) muscles and the...
Describe the descending motor pathways from primary motor cortex
to (but not including) muscles and the functional or behavioral
distinctions of those pathways.
Identify and describe the primary functional cortical areas of the
cerebrum (e.g., primary motor cortex, primary somatosensory cortex,
primary auditory cortex, primary visual cortex, primary olfactory
cortex, primary gustatory cortex).
The hypothalamus and the primary motor cortex are the two parts
of the brain that have the most direct influence over the body.
Compare the ways in which each creates changes in the body and the
types of function they are involved in.
For the efferent pathway start with the primary motor cortex in
the precentral gyrus. For the efferent pathways be sure to describe
the pyramidal and extrapyramidal efferent pathways. Which is
involved in fine motor control? What plexus and arm nerve are
involved in this motor control of the flexor digitorum profundus
muscle? What role does the cerebellum play in the flexion or the
index finger?
Regarding the human brain (select the MOST CORRECT
statement):
The primary motor cortex is located in the frontal lobe.
The diencephalon is composed of two structures, the cerebral
cortex and the thalamus.
Sensory information from the skin of the big toe is relayed via
ascending spinal tracts to the primary motor cortex
Both a) and b) are correct and c) is incorrect.
a), b) and c) are all correct.
Human sensory systems (select the MOST CORRECT statement):
Sensory information for...
1.
what is the hypothalamus main function?
2. the frontal primary cortex controls what muscles?
3. where is vision interpreted in the brain?
4. Receptors witg large receptive fields would be located in
the fingertips or torso areas?
5. what brain area regulates most homeostatic
regulation?
6. Type A nociceptors provide what kind of signals?
7. Receptors will recieve string and weak stimuli. How do they
reapond to the different stimuli?
8. The motor division of the PNS sends signals...
Explain the two main somatosensory pathways that carry signals
from the periphery to the cortex.
a) Write down the routes of these pathways on their way to
cortex.
b)Describe and compare the properties of these pathways.
2.Describe the pathway of auditory nerve signals from the
auditory nerve to primary auditory cortex.
3. Describe both conductive and sensorineural hearing loss and
why they occur. Can they be treated?
Put these nerve pathways in proper order from stimulus to
cerebrum.
Eye
1. visual cortex
2. optic (II) nerve
3. rods/cones
Ear
1. vestibulocochlear (VIII) nerve
2. hair cells of the organ of Corti
3. auditory cortex