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Quiz 1
Nervous System, Bone, Connective Tissue, Skeletal Tissue
10
Anatomy
Graduate
08/09/2011

Additional Anatomy Flashcards

 


 

Cards

Term

 

 

 

Cell Types in Nervous System

Definition

 

1. Neurons: Permit rapid transmission of infomation over long distances 

2. Gilial Cells: Provide structural support and maintain the extra-neuronal environment (Think GLUE) 

 

100 Billion neurons/ 1 Trillion Gilial Cells 



Term

 

 

Division Based on Location or

"Anatomical Organization"

Definition

 A) Central Nervous System (CNS) 

Brain and Spinal Cord

 

B) Peripheral Nervous System (PNS)

Cranial nerves (12 Pairs)

Spinal Nerves (31 Pairs)

 

 

Term

 

Division Based on Function

Definition

 

1. Sensory (Afferent) vs Motor (Efferent) 

 

2. Somatic vs Visceral NS

 

3. Parasympathetic vs  Sympathetic

 

Term

 

Somatic Nervous System

Definition

 

Controls the body's VOLUNTARY and REFLEX activities thorugh SOMATIC SENSORY and SOMATIC MOTOR COMPONENTS of both CNS and PNS

Term

 

Visceral (Autonomic) Nervous System

Definition

 

  • Portion of CNS and PNS that controls INVOLUNTARY smooth muscle, cardiac muscle, and glandular tissue. 
  • Has a MOTOR and AUTONOMIC SENSORY COMPONENT
  • Further divided inot the Parasympathetic Division and Sympathetic division
Term

 

Parasympathetic Division

Definition

 

NECESSARY TO SUSTAIN LIFE

slows the heart, increases peristalsis and glandular secretions

Term

 

Sympathetic Division

Definition

 

EXPENDABLE

Effects are evident during times of stress or emergency

Fight or Flight 

Pupils dilate, heart beats faster, respiration increases, and brochioles dilate to oxygenate blood flow

Term

 

Afferent Nerves

Definition

 

Axons that carry impulses TOWARD the CNS 

"Input to CNS" 

AKA: Sensory 

Term

 

Efferent Nerves

Definition

 

Axons that carry impulses AWAY from CNS to muscles and glands

"Output from CNS"

AKA: Motor Nerves 

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