Neuron Anatomy
What is the basic functional unit of the nervous system?
Neuron
What is the junction between neurons where signals are transmitted?
Synapse
What two primary structures make up the central nervous system?
Brain and spinal chord
What are the four main components of blood?
Plasma
Red blood cells
White blood cells
Platelets
What organ pumps blood around the body?
Heart
What part of a neuron receives signals from other neurons?
Dendrites
What type of chemical messenger transmits signals across a synapse?
Neurotransmitter
What does 'CNS' stand for?
Central Nervous System
Which blood component carries oxygen?
Red blood cells
In what organ does oxygen enter the blood?
Lungs
What part of a neuron carries electrical impulses away from the cell body?
Axon
What term describes how the nervous system receives and interprets stimuli?
Sensory processing
What does PNS stand for?
Peripheral Nervous System
Which blood component defends the body against infection?
White blood cells
What gas is picked up from body cells and transported back to the lungs?
Carbon dioxide
What is another name for the cell body of a neuron?
Soma
What term means the movement of electrical and chemical signals through neurons?
Signal transmission
Which branch of the peripheral nervous system controls voluntary movements?
Somatic nervous system
Which blood component consists of small cell fragments that help blood clot?
Platelets
Which blood component acts as the main medium for transporting nutrients, hormones, and waste through the circulatory system?
Plasma
What fatty insulating layer around an axon helps nerve signals travel faster and more efficiently?
Myelin sheath
What structures receive incoming signals from other neurons?
Dendrites
Which branch of the peripheral nervous system controls involuntary functions such as heartbeat, breathing, and digestion?
Autonomic nervous system
Within 5%, what % of blood volume is plasma?
55%
Which blood component carries oxygen to body tissues and returns carbon dioxide toward the lungs?
Red blood cells (RBCs)
FINAL JEOPARDY CATEGORY
Body Systems Working Together
During exercise, a) which branch of the peripheral nervous system controls the voluntary movement of your legs, b) which branch controls your heartbeat, and c) which blood component carries oxygen to your muscles?
a) Somatic nervous system
b) autonomic nervous system
c) red blood cells