Afferent pathways communicate sensory information (e.g. pain, cold) from your sensory organs to your central nervous system. Efferent pathways communicate information from your central nervous system to your effector organs (e.g. muscles and glands).
Afferent pathway
Afferent pathway
A nerve impulse can travel in two directions: towards the brain (sensory or afferent pathway) to convey sensory information, and away from the brain (motor or efferent pathway) to control muscle movement or glandular secretion.
Effectors that bring about change receive information from the efferent pathway of a feedback system. This pathway carries signals from the control center to the effector in response to the input received from the afferent pathway. The effector then carries out the necessary responses to maintain homeostasis in the body.
stimulus, receptor, afferent pathway, control center, efferent pathway, effector, response
To remember the stages of a reflex arc in chemistry, you can use the acronym "SAID" which stands for stimulus, afferent pathway, integration center, and efferent pathway, and then the response. This mnemonic can help you recall the order of events in a reflex arc.
The optic nerve (cranial nerve II) carries sensory information about light intensity to the brain as part of the afferent pathway in the pupillary reflex.
Motor neurons
The bundle of nerve fibers that send messages to the brain for interpretation is called the sensory pathway. These pathways carry sensory information from the peripheral nervous system to the brain where it is processed and interpreted.
renal artery, segmental arteries, interlobar arteries, arcuate arteries, cortical radiate arteries, afferent arterioles, glomerulus, efferent arteriole, peritubular capillaries, venules, interlobar veins, arcuate veins, interlobar veins, renal vein.
renal artery, segmental arteries, interlobar arteries, arcuate arteries, cortical radiate arteries, afferent arterioles, glomerulus, efferent arteriole, peritubular capillaries, venules, interlobar veins, arcuate veins, interlobar veins, renal vein.
Interneurons are neurons found within the central nervous system (primarily the brain or spinal cord) that connect sensory (afferent) neurons to motor (efferent) neurons. Often these neurons are part of a polysynaptic reflex arc.interneurons. They are also called association neurons.