Nervous System: Anatomy Class 2 Flashcards
What kinds of fibres pass through the corpus callosum ?
Commissural Fibres
What are the 4 parts of the corpus callosum ?
1: Splenium
2: Body
3: Genu
4: Rostrum
What separates the 2 anterior horns of the lateral ventricles ?
Septum Pellicidum
What is the fornix ?
The fornix is a bundle of fibres which links the hippocampus with the hypothalamus
What is the bulbous projection on the floor of the lateral ventricle ?
Caudate nucleus
List some of the functions of the hypothalamus
Temperature control
Appetite
Thirst
Sleep cycle
What does the stalk of the pituitary gland hang from ?
The hypothalamus
What does the lentiform nucleus consist of ?
The putamen and the globus pallidus
What does the striatum consist of ?
Caudate nucleus and the putamen
What is the basal ganglia (nucleus) formed from ?
The striatum and the lentiform nucleius
What is the name of the white mater structure which is situated in the infromedial part of each cerebral hemisphere ?
The internal capsule
What is the main blood supply to the internal capsule ?
Middle cerebral artery
What kinds of fibres connect the cerebral hemispheres with other parts of the brain ?
Projection fibres
What kinds of fibres connect regions within the same hemisphere of the brain ?
Association fibres
Which group of structures is the substantia nigra a part of, functionally ?
The basal ganglia
At what vertebral level does the spinal cord end in adults ?
L2/L3
What does a slice of the spinal cord look like in the cervical region ?
The body is oval and thick with thin dorsal and ventral horns
What does a slice of the spinal cord look like in the Thoracic region ?
Small round body with thin dorsal horns
What does a slice of the spinal cord look like in the Lumbar region ?
Round body with large ventral horns
What does a slice of the spinal cord look like in the sacral region ?
round body with very large ventral horns