NEUR 1201 Lecture Notes - Lecture 2: Homeostasis, Myelin, Frontal Lobe

• School: Carleton University
• Department: Neuroscience
• Course: NEUR 1201
• Professor: Kim Hellemans

Document Summary

Lateral: towards the side of the brain (bilateral = both sides; unilateral = one side) Autonomic nervous system: engaged when we encounter stressors in the environment (internal/external) Receptors in skin (sensory), body muscles (motor), internal body organs (sensory/motor) Efferent (exiting) nerves: motor nerves that connect the cns to the skeletal muscles. Afferent (incoming) nerves: sensory nerves that carry info from the sense organs to. Sympathetic ns: arousing (ie. flight or flight) Parasympathetic ns: calming (ie. rest and digest) Do(cid:374)"t (cid:374)eed to (cid:373)e(cid:373)orize this picture (cid:894)just for refere(cid:374)ce(cid:895)! Ventricles: cushions and supports the brain (contains csf) Third and fourth ventricle: connected by the cerebral aqueduct. Meninges: special membranes that protect the brain/spinal cord. Pia mater: first layer (very thin; can fit into grooves) Ara(cid:272)h(cid:374)oid: se(cid:272)o(cid:374)d la(cid:455)er (cid:894)like a spider"s (cid:449)e(cid:271); csf circulates between this and pia mater) Dura mater: final layer (very thick; csf fills the ventricles within) Csf: fills ventricles and circulates around brain and spinal cord.