UNIVERSITY OF IOWA - HUMAN PHYSIOLOGY - EXAM 2 - CHAPTER 7 QUESTIONS AND ANSWERS 100% VERIFIED

UNIVERSITY OF IOWA - HUMAN
PHYSIOLOGY - EXAM 2 - CHAPTER 7
QUESTIONS AND ANSWERS 100%
VERIFIED

, CNS (Central nervous system) - ANSWERS- Made up of the brain and spinal cord
- Functions in control and integration

PNS (Peripheral nervous system) - ANSWERS- Cranial nerves and spinal nerves
- Has two branches, afferent and efferent

Afferent - ANSWERSNervous system that goes from the periphery to the central
nervous system (sensory)

Efferent - ANSWERSNervous system that commands from the central to the periphery
(motor)

Neurons - ANSWERSConduct electrical signals

Neuroglia - ANSWERSSupport neurons

Majority - ANSWERSNeuroglia are the majority/minority of all nerve tissue cells

Dendrites - ANSWERSPart of the neuron that receives inputs/information

Cell body - ANSWERSPart of the neuron where the organelles are located. The
"control" station of the neuron

Axon hillock - ANSWERSPart of the neuron that connects the cell body and axon

Axon - ANSWERSPart of the neuron that propagates an impulse to the axon terminals

Axon terminal - ANSWERSPart of the neuron that releases neurotransmitters onto a
post-synaptic neuron. How one neuron communicates with another

Dendrites, cell body, axon hillock, axon, axon terminal - ANSWERSParts of a neuron

Myelin sheath - ANSWERSInsulates axons and allows them to conduct signals with a
greater velocity (nearly 10x greater)

Somatic, autonomic - ANSWERSTwo branches of the efferent nervous system

Somatic - ANSWERS- Nervous system for voluntary control of skeletal muscles
- Single neuron

Autonomic - ANSWERS- Nervous system for involuntary mechanisms (heart beat,
stomach contraction, etc.)