Download Biology Name____________________ Introduction to the Nervous

Biology
Name____________________
Introduction to the Nervous System & Endocrine System
Period____
Activity #1
Endocrine System-
Nervous System
DIVISIONS OF THE NERVOUS SYSTEM
Date_________
Neuron
Questions:
1.
Identify whether the characteristic or structure is true of or part of the
central nervous system (CNS) or the peripheral nervous system (PNS).
______ Brain
______ Spinal Cord
______ Nerves
______ Integrates and coordinates sensory data and motor commands
______ Center of higher functions (intelligence, memory, emotion)
______ Connection between CNS and the rest of the body
______ All neural tissue outside the CNS
______ Allows the brain and spinal cord to communicate with the body
______ Receives sensory impulses and relays impulses for action to muscles or glands
______ Interprets impulses
______ Carries impulses from receptors to the CNS
______ Carries impulses to muscles and glands from the CNS
2.
Identify each of the following as being part of the Somatic Nervous System
(SNS) or the Autonomic Nervous System (ANS).
PART OR DESCRIPTION
SNS OR ANS
Receives and processes sensory input from the skin, skeletal
muscles, tendons, joints, eyes, and ears
Excites skeletal muscles
Receives and processes input from internal organs of
cardiovascular, respiratory, digestive, urinary, and reproductive
systems
Inhibits or excites smooth muscle, cardiac muscle and glands
3.
Identify each of the following as true of sensory (S) or motor (M) neurons.
______ Carry information to the CNS from sensory receptors
______ Provide information about external environment (touch, temperature,
pressure, sight, smell)
______ Monitor position of skeletal muscles
______ Monitor activities of the digestive, respirator, cardiovascular, urinary,
and reproductive systems
______ Carry instructions from the CNS to other tissues, organs, and organ systems
______ Cause muscles to contract
______ Cause glands to release secretions
4.
Color the following parts on the diagram below.
O
O
O
O
O
Cell body (A)
Nucleus (B)
Dendrites (C)
Axon (D)
Axon terminals (E)
O
O
O
O
End bulbs (F)
Nodes of Ranvier (G)
Neurilemma (H)
Myelin (I)
6.
Match the structure with the correct letter from the diagram below.
______ Dendrites
______ Schwann cell nucleus
______ Axon
______ Node of Ranvier
______ Cell body
______ Myelin sheath
______ Nucleus
______ Axon terminals
______ Neurilemma
______ End bulbs
* Look closely to where the letters are pointing!