Anatomy and Physiology Semester 2 Final Review

Interneuron

Motor neuron

Sensory neurons

Unipolar neuron

Bipolar neuron

Multipolar neuron

Pyramidal neuron

Dendrites, soma, nucleus, axon, myelin sheath, Schwann cell, axon terminals

Parts of a neuron (7)

IdRpPpFpRp

Events of an action potential

IdRpPpFpRpI

I'd rep pp fap rap

Initial depolarization, rising phase, peak phase, falling phase, refractory period

IdRpPpFpRp

Na channels are triggered to open, Na moves in and membrane depolarizes

Initial depolarization

The rapid depolarization

Rising phase

Highest point of depolarization

Peak phase

The rapid repolarization

Falling phase

The time when the cell is less excitable after the action potential just occurred

Refractory period

Instinct that triggers body to stretch; for maintaining muscle tone and posture

Stretch reflex

Instinct that triggers body to withdraw; for getting away from painful or harmful stimuli

Withdrawl reflex

Receptor, afferent signal/sensory neuron, integration center/interneuron (middle), efferent neuron/motor neuron, effectors

Reflex arc (from left to right)

CNS is located in the brain and spinal cord; PNS nerves and everything else

CNS vs PNS

Autonomic controls involuntary functions; Somatic controls voluntary functions

Autonomic vs Somatic

Sympathetic is "fight or flight;" Parasympathetic is "rest and digest"

Sympathetic vs Parasympathetic

Systematic is from heart to body; Pulmonary is from lungs to heart

Systematic vs Pulmonary circulation

92% water, rest is proteins and nutrients, etc

Plasma composition