PYB102 Neuroanatomy

Tracts

bundles of axons in the CNS (white matter)

Nerves

bundles of axons in the PNS

Nuclei

groups of neuron cell bodies in the CNS (grey matter)

Ganglia

groups of neuron cell bodies in the PNS

What are the 3 planes of view

Saggital, Coronal, and Horizontal

Name the 4 labels of direction in the spinal cord

Dorsal = toward the back

Ventral - toward the front

Posterior (caudal or inferior) = toward the bottom

Anterior (rostral or superior) = toward the top

List the subdivisions of the Forebrain

Telencephalon = cerebral cortex, limbic system, and basil ganglia

Diencephalon = thalamus and hypothalamus

What makes up the midbrain

Consist of 2 pairs of colliculi

1. superior colliculi

2. inferior colliculi

What makes up the hindbrain

Medulla, pons, cerebellum, and reticular formation

Explain the function of the medulla oblongata

• Controls functions vital for survival such as heart rate, blood pressure, and respiration

• ventral side of the brain (to the front)

Explain the function of the Pons

• connects the brainstem with the cerebellum by a bridge of fibres

• contains several clusters of nuclei such as the reticular formation which influences our level of consciousness and alertness

Explain the function of the Cerebellum

• large structure located behind the brain stem

• critical for co-ordination of movement and balance