BIO 3303 Study Guide - Final Guide: Caffeine, Cranial Nerves, Collagen
21 Apr 2016
School
Department
Course
Professor
Document Summary
Primitive nerve nets on radially symmetric animals: non specialized neurons, bidirectional synapses, propulsive movements, no integrating centre. Connectives and commissures in segmented, bilateral symmetric animals. Vertebrate nervous system: cns with brain and spinal cord. Bbb is specialized epithelial cells with tight junctions that line blood vessels of brain. Bbb is more permeable in some areas like hypothalamus. 12 cranial nerves, 31 pairs of spinal nerves. Embryonic development of a brain: forebrain to telencephalon, diencephalon. Hypothalamus/pituitary regulate homeostasis (body temp, bp, circadian rhythm, blood composition), emotion, ans. Cortex for integration and reasoning: midbrain. Mammals use this to relay info from brainstem to forebrain: hindbrain to metencephalon and myelencephalon. Cerebellum coordinates movement and involved in learning and spatial orientation. Relative brain size and structure size corresponding to animal: birds, fish have large midbrain and cerebellum because of much sensory info they take in and coordination of movement in a 3d space.
