Lecture Material Flashcards
What is the considered the Central Nervous System?
the brain and spinal cord.
What is considered the Peripheral Nervous System?
Cranial and spinal nerves
Three parts of the brain structure
- Forebrain, makes up 805 of brain weight (thalamus, hypothalamus)
-cerebellum - voluntary movements
-brainstem- connects to spinal cord
Afferent Division
Transmits sensory info to the CNS
Efferent Division
Includes somatic (skeletal muscle) and autonomic divisions.
Sympathetic division
Fight or flight
Parasympathetic division
Rest and digestion
Parts of a Neuron
Cell body, Axon, dendrites
Myelin sheath, nodes of ranvier
Synapse
Afferent Neurons
Carry sensory info to CNS
Efferent Neurons
Transmits signals for CNS to effectors (muscles, glands)
Interneurons
In CNS, communication between sensory and motor neurons
Resting membrane potential
Voltage difference due to selective membrane permeability
Action potential
Sodium influx, causing nerve depolarization
Nerve to nerve synapse
Chemical transmission across synapses
Propioceptors
Transmits sensory info from muscles, tendons, ligaments
Cerebral cortex
Voluntary control
Cerebellum
Motor control
Boyles law
Gas pressure is inversely proportional to volume
Inspiration and expiration
Active process, and passive process at rest
Obstructive disorders
Asthma, bronchitis, emphysema
Restrictive disorders
Pulmonary fibrosis, pneumonia
Heart structure
Four chambered pump, atria, ventricles
Henrys law
Gas dissolved in liquid is equally proportionate to the partial pressure of gas above liquid
Bohr law
Electrons can be moved into different orbits with the addition of energy
