Anatomy Week 1 Objectives Flashcards
What makes up the diencephalon?
Thalamus.
Hypothalamus.
Epithalamus.
What is the general function of the thalamus, hypothalamus, and epithalamus?
Thalamus - relay station for sensory and motor information to and from cerebral cortex.
Hypothalamus - interacts with multiple regions of brain to control; appetite, thirst, emotions, body temp, circadian rhythms. Interacts with pituitary gland per hormonal secretions.
Epithalamus - connects limbic system to motor pathways and other parts of brain. Emotional response. Circadian rhythms and sleep (melatonin from pineal gland).
What is the function of the midbrain, pons, and medulla?
Midbrain - body and eye movements, vision and hearing integration.
Pons - motor control, sensory interpretation.
Medulla - autonomic body functions including breathing and heart rate.
What is the function of the cerebellum? What are the arbor vitae and the tonsils?
Functions: coordination of movement, posture, and balance.
Arbor vitae: white mater.
Tonsils: lobule on underside of both cerebellar hemispheres.
What is the function of the pre and post central gyri?
Precentral gyrus: Motor function.
Postcentral gyrus: Sensory function.
What are arachnoid granulations?
Collections of arachnoid villi.
Protrude through meningeal layer of dura mater into dural venous sinuses.
grey matter:
contains numerous cell bodies and relatively few myelinated axons. On surface of cerebrum and cerebellum and deep part of spinal cord
white matter
composed chiefly of long-range myelinated axon tracts and contains relatively very few cell bodies. found in deep part of brain and superficial bit of spinal cord
commissure
joining of nerve fiber tracts
nucleus:
Ganglion:
nucleus: collection of neuron cell bodies in the CNS
Ganglion: collection of neuron cell bodies in the PNS
