APHY 201 Module 04 Reflexes and Spinal Tracts Ivy Tech Questions with Correct Answers

APHY 201 Module 04 Reflexes and Spinal Tracts Ivy Tech Questions with
Correct Answers


Question 1:
Nervous system
Answer:
....Master controlling and communicating system of body


Question 2:
Neurons
Answer:
....Cells that communicate via electrical and chemical signals


Question 3:
Usually cause almost immediate responses
Answer:
Rapid and specific


Question 4:
General (somatic) senses
Answer:
....Collect information about cutaneous (tactile sensations on the surface of the
skin), visceral and proprioceptive sensations. Pain, temperature, pressure, vibration, and
proprioception.


Question 5:
Special senses
Answer:
....collect information about smell, taste, vision, hearing, and equilibrium


Question 6:
Sensory input (afferent)
Answer:
....Information gathered by sensory receptors about internal and external
changes. Sensory neurons that supply input to the CNS about the environment. Sensory
neurons originate in the PNS

, Question 7:
Integration
Answer:
....Processing and interpretation of sensory input. Interneurons (association neurons) are
responsible for integrating afferent information and formulating an efferent response.
Interneurons lie entirely within the CNS


Question 8:
Motor output (efferent)
Answer:
....Activation of effector organs (muscles and glands) produces a response.
Motor neurons carry instructions from CNS to organs, muscles and glands. Motor neurons
originate in the CNS


Question 9:
Central nervous system
Answer:
....Brain and spinal cord of dorsal body cavity


Question 10:
Interprets sensory input and dictates motor output
Answer:
Integration and control center


Question 11:
Peripheral nervous system
Answer:
....The portion of the nervous system outside CNS Consists


Question 12:
Cranial nerves (12 pairs) to and from brain
Answer:
Spinal nerves (31 pairs) to and from spinal cord