Question 8 Midterm Flashcards
Corpus callosum
Bridge of fibers. Connects right and left hemispheres. Lets two hemispheres communicate. Reaches into every major cortex. Integrates countless processes
Largest white matter structure in the brain
Corpus callosum
Importance of corpus callosum
Different functions develop in different hemispheres. However, certain actions can be mapped to a different area and of the brain that wasn’t damaged
Largest commisure in the body
Corpus callosum
Sensory cortex location
Post central gyrus
Posterior to central sulcus
On parietal lobe
Function of sensory cortex
Interprets info from sensory receptors in skin, skeletal muscles and joints
Receive information from skin and proprioceptors
Tell the brain of body’s position in space. Neurons identify the body region being stimulated.
Hypothalamus
1.Small, filled with nuclei.
2.Core regulatory center for homeostasis. Controls body temp, thirst hunger.
3.Controls endocrine system function through various hormones
Where do nervous and endocrine systems meet?
Hypothalamus
Neurosensory neurons. Located in
Hypothalamus
Neurosensory neurons
Release hormones like tropins
Location of hypothalamus
Triangle under corpus callosum
Under thalamus, has thalamic adhesion
Where are ADH and oxytocin made?
Hypothalamus
ADH function
Decrease the amount of urine produced
Hypothesis for psychosomatic illness
Increased activity in hypothalamus from stress might increase the activity in hypothalamus governing other functions like blood pressure
Main visceral control center of the body
Hypothalamus
How do medulla and hypothalamus work together?
Hypothalamus gives instructions through giving instructions through medullary reticular centers
Functions of the hypothalamus
1.Control autonomic nervous system
2.Initiate physical responses to emotions
3.Regulate body temperature
4.Regulate food intake
5.Regulate water balance and thirst
6.Regulate sleep wake cycles
7.Control endocrine system function
Which structure links emotional responses to changes in autonomic function
Hypothalamus
Pituitary gland location
At the end of hypothalamus
Infundibulum
Connects pituitary gland to diencephalon
Tropins
Hormones that cause the release of other hormones into anterior and posterior pituitary
Master gland that controls endocrine system
Pituitary gland
Posterior pituitary gland releases
ADH and oxytocin
Anterior pituitary gland releases
Human growth hormone
Luteinizing hormone
Follicle stimulating hormone
Prolactin
Thyroid stimulating hormone
Thalamus
Executive secretary of brain. Passes all sensory info except for smell to the cerebral cortex.
Helps direct the activity of motor cortices from the cerebellum and the basal nuclei.
Mediates sensation, motor activities, cortical arousal, learning and memory. Gateway to cerebral cortex
Thalamus location
Inferior to corpus callosum around thalamic adhesion
Thalamic adhesion
Connects both parts of thalamus medially. Flattened band of tissue
“Eye”
Sorts and edits sensory information ascending to cerebral cortex
Thalamus