BIOL 2420 EXAM WITH IN-DEPTH QUESTIONS & MODEL ANSWERS (LATEST UPDATE VERSION)

BIOL 2420 EXAM WITH IN-DEPTH QUESTIONS & MODEL
ANSWERS (LATEST UPDATE VERSION)




Sensory Systems CORRECT ANSWER>>>>The Nervous System



Somatosensory system, Somesthetic CORRECT ANSWER>>>>Sensory systems



conscious interpretation of the world based on sensory systems, memory, and other neu
CORRECT ANSWER>>>>Perception



Detect specific form of energy in the external environment, Modality CORRECT
ANSWER>>>>Sensory receptors



light, sound, pressure, temperature, chemicals CORRECT ANSWER>>>>Modality



a given nerve fiber conveys only one modality of sensation CORRECT
ANSWER>>>>Law of specific nerve energies



gated calcium channel CORRECT ANSWER>>>>Voltage



specific neural pathways transmitting information of a specific modality CORRECT
ANSWER>>>>Somatosensory pathways

, Two point discrimination. CORRECT ANSWER>>>>Two-point discrimination is the
ability to discern that two nearby objects touching the skin are truly two distinct points, not
one.



Sensation produced by tissue damaging, or potentially tissue-damaging, stimulus
CORRECT ANSWER>>>>The pain response



A delta fibers, Sharp, pricking sensation, Easily localized CORRECT ANSWER>>>>Fast
pain



C fibers, Dull aching CORRECT ANSWER>>>>Slow pain



Second order neuron CORRECT ANSWER>>>>Second order neuron



Skeletal Muscle CORRECT ANSWER>>>>Muscle attached to bones, responsible for
voluntary movement.



Sarcomere CORRECT ANSWER>>>>The functional unit of a muscle fiber.



Actin CORRECT ANSWER>>>>Thin filament involved in muscle contraction.



Myosin CORRECT ANSWER>>>>Thick filament with heads that bind to actin.