PSYC104 Lecture Notes - Lecture 11: Adrenocorticotropic Hormone, Lipophilicity, Homeostasis
30 May 2018
School
Department
Course
Professor
Week 11 Biological Basis
Key
Str = striatum
SC = superior colliculus
IC = inferior colliculus
BS = brainstem
P/M - pons/medulla
OC = occipital cortex
TC = temporal cortex
PC = parietal cortex
MC = motor cortex
FC = frontal cortex
LS = limbic system
Dorsal = back
Ventral - front
Anterior = front
Posterior = back
find more resources at oneclass.com
find more resources at oneclass.com
Central NS (brain and spine)
- Cerebrum
- Cerebellum
- Brain system
- Spinal cord
Peripheral NS
- All nerves outside the brain
- Cranial nerves
- Cervical nerves
- Thoracic nerves
- Lumbar nerves
- Sacral nerves
- Coccygeal nerves
Somatic NS (voluntary)
- Sensory in
- Motor out
- Skin > dorsal roots > ventral roots >
brain >muscle (to cause a
response)
- Spinal reflex occurs without brain
input (holding onto something
without moving)
Summary
- 6 areas that join the CNS
- Receives sensory input and
delivers motor output
- Somatosensory cortex processes touch and delivers motor output from the
primary motor cortex
Hormones
- Hypothalamus and pituitary (bottom of the brain) > released to the
bloodstream
- Anterior pituitary makes its own hormones
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Skin > dorsal roots > ventral roots > brain >muscle (to cause a response) Spinal reflex occurs without brain input (holding onto something without moving) Receives sensory input and delivers motor output. Somatosensory cortex processes touch and delivers motor output from the primary motor cortex. Hypothalamus and pituitary (bottom of the brain) > released to the bloodstream. Both active but change according to the situation. Parasympathetic are non-emergency (digestion, growth, immune responses, energy storage) Only lipophilic drugs and small uncharged molecules can cross into the the brain (csf) Allows oxygen to flow in and out. Allows fat-soluble molecules, glucose and amino-acids to enter. Feds to the brain through the spinal cords and out to the blood. Protect and nourish the dura mater, arachnoid mater and pia mater. Structures on the same side are ipsilateral. Tract - a set of axons within the cns. Nerve - set of axons in the periphery. Nucleus - cluster of neurons in the cns.
