Nervous System 1
Nervous System 2
Nervous System 3
Nervous System 4
Muscles/Bones/Skin Bonus
100
What is the most basic cell of Nervous System
Neuron
100
The __________ potential is when the neurons are at rest (-70mV).
Resting (Vilopotential)
100
PNS means
peripheral nervous system
100
The repolarization phase of the action potential occurs because
positive ions (K+) begin to leave the cell
100
The bicep and tricep are which type of muscles:
A. Antagonistic
B. Synergistic
A. Antagonistic (when one contracts, one extends)
200
What part of the Neuron receives the signal from the previous Neuron?
Dendrite
200
What is the term for a chemical messenger?
Neurotransmitter
200
What positive ion first enters the Neuron during the action potential process?
Sodium
200
After being released, neurotransmitters bind to receptors on the
Post Synaptic Neuron
200
What are the three main layers in the skin?
Dermis, epidermis and hypodermis
Svenska: Överhud, läderhud, underhud
300
What Part of the Neuron sends signals to the next Neuron in the pathway?
Axon Terminal
300
Name of the phenomenon where the action potential "jumps" between Nodes of Ranvier on the axon.
Saltatory conduction
300
What is the resting membrane potential of a Neuron
-70mV
300
Neurotransmitters travel in here to reach the receptors
Synaptic Cleft
300
Name the two types of cells found in the epidermis.
Hint: both words have this format in "______cytes"
Keratinocytes, melanocytes
Svenska: keratinocyter, melanocyter
400
What is the Space between a dendrite and axon known as?
synapse
400
what are the two subdivisions of the ANS (autonomic nervous system)?
Sympathetic and parasympathetic
400
Action Potential occurs when...(which voltage)
The Threshold is reached (-55mV)
400
What is the point of the Myelin sheath on an axon?
Insulates the axon to make the action potential travel faster.
400
Name the 3 muscle cell types, and state which ones are voluntary (viljestyrd) and which are involuntary (inte viljestyrd)?
Smooth (involuntary), cardiac (involuntary) and skeletal (voluntary)
Glätt (ofrivilliga), hjärt (ofrivilliga) och skelettmuskler (viljestyrda).
500
What is the name of the insulated and non-insulated spaces on the axon?
Nodes of Ranvier and Myelinated sections (made of Myelin sheath cells)
500
Describe the function of the Na/K+ Pump
An ATP-driven pump that pumps 3 Na+ out, 2 K+ into the cell to keep the overall cell potential negative.
Helps restore resting potential after an action potential.
500
Depolarization occurs when
Na+ ions move into the cell
500
Name the 4 steps of the Action potential, the name of each step, and the polarization of the cell in mV.
1. Action Potential (-55mV)
2. Depolarization (+35mV)
3. Repolarization and Hyperpolarization (-90mV)
4. Resting Potential (-70mV)
500
Name each part of the joint (leder):
